Academic literature on the topic 'Austenitization'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Austenitization.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Austenitization"
1
Yuan, Lian Jie, Qing Suo Liu, and Bin Gao. "Effect of Austenitization Temperature on Formation of Low Temperature Bainite." Advanced Materials Research 912-914 (April 2014): 103–6. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.103.
Full textAbstract:
The influence of austenitization temperature on the incubation period and bainitic transformation behaviours of the high-carbon silicon steel has been investigated. It was found that the nose temperature of bainite transformation and incubation period decreases with increasing austenitization temperature. The microstructure characteristics of the bainitic transformation products have been also observed. After isothermal heat treatment at 230°C for 20 mins, all samples austenitized at different temperatures produced a bainitic structure, which consists of packets of parallel ferrite laths. The major difference lies in the edge boundary morphology. Bainitic laths formed in low-temperature austenitization conditions has sharp saw-tooth edge boundaries, whereas bainite transformed from high-temperature austenitization conditions, have smooth wedge boundaries. Key Words: austenitization temperature; low-temperature bainite; incubation period;edge boundary
2
Lutsenko, V. A., T. N. Golubenko, O. V. Lutsenko, and N. A. Glazunova. "EFFECTS OF AUSTENITIZATION ON STRUCTURE FORMATION СHROMO-MOLYBDENUM-VANADIUM STEEL AFTER HIGH TEMPERING." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 1 (March 14, 2017): 69–72. http://dx.doi.org/10.21122/1683-6065-2017-1-69-72.
Full textAbstract:
Influence of austenitization temperature of chrome-molybdenum-vanadium steel on structure formation at the softening heat treatment is studied. It is shown that the decline of the austenitization temperature promotes to reduce the micro-hardness values due to the intensification of spheroidizing of pearlite after the overcooling and high tempering. Increasing the austenitization temperature leads to formation of an uneven structure after tempering.
3
Krzyńska, A., and A. Kochański. "Austenitization of FerriticDuctile Iron." Archives of Foundry Engineering 14, no. 4 (December 1, 2014): 49–54. http://dx.doi.org/10.2478/afe-2014-0085.
Full textAbstract:
Abstract Austenitization is the first step of heat treatment preceding the isothermal quenching of ductile iron in austempered ductile iron (ADI) manufacturing. Usually, the starting material for the ADI production is ductile iron with more convenient pearlitic matrix. In this paper we present the results of research concerning the austenitizing of ductile iron with ferritic matrix, where all carbon dissolved in austenite must come from graphite nodules. The scope of research includedcarrying out the process of austenitization at 900° Cusing a variable times ranging from 5 to 240minutes,and then observations of the microstructure of the samples after different austenitizing times. These were supplemented with micro-hardness testing. The research showed that the process of saturating austenite with carbon is limited by the rate of dissolution of carbon from nodular graphite precipitates
4
Kostoj, Valérie, Jean Denis Mithieux, and Thomas Fröhlich. "Influence of Chromium Carbide Size on the Austenitization Kinetics of a Martensitic Stainless Steel Measured by Dilatometry." Solid State Phenomena 172-174 (June 2011): 426–31. http://dx.doi.org/10.4028/www.scientific.net/ssp.172-174.426.
Full textAbstract:
The use of martensitic stainless steels is commonly due to high mechanical properties requirements. To obtain these high values from the industrial material (whose microstructure consists in ferrite and M23C6carbides), a suitable heat treatment, consisting in an austenitization of the steel at a temperature higher than A3 point, followed by a fast quenching, is necessary. For economic reasons, the shortest the heat treatment time, the better it will be. Therefore, one essential point, to reduce austenitization time, is to obtain a final product made of ferrite and carbides, with the lowest carbides size as possible: the lowest they will be, the shortest time the transformation ferrite + carbides --> austenite will take. The formation of these carbides occurs during the batch annealing of the steel, at low temperature. To study the influence of carbides size on the austenitization kinetics of a 1.4006 grade martensitic stainless steel, several batch annealings were made at different temperatures. Carbides sizes were measured by electronic microscopy and austenitization kinetics were measured by dilatometry. Small carbides size logically induces fastest austenitization kinetics. The austenization occurs in three stages: a fast one which corresponds to the dissolution of the smallest carbides leading to a homogeneous repartition of carbon, a chromium gradient into ferrite and thus an austenitization until reaching Cr-rich ferrite. The second one is limited by the diffusion of chromium, inducing a slower transformation. The apparent third stage is an artefact of the second one, as it corresponds to an expansion of the austenite due to the diffusion of carbide, and an apparent increase of the transformation kinetics.
5
Li, Zhiqiang, Shengyang Zhang, Yang He, Guangjie Xiong, Yude Liu, and Fuyong Su. "Prediction of the Non-Isothermal Austenitization Kinetics of Fe-C-Cr Low Alloy Steels with Lamellar Pearlite Microstructure." Materials 15, no. 6 (March 14, 2022): 2131. http://dx.doi.org/10.3390/ma15062131.
Full textAbstract:
The austenitization of low alloy steels during rapid heating processes was involved in many kinds of advanced heat treatment technologies. Most of the previous research on the austenitization kinetics was focused on the spherical pearlite microstructures, which were different from the lamellar pearlite microstructures. In the present research, to predict the non-isothermal austenitization process of an Fe-C-Cr steel with lamellar pearlite, a novel 3-dimensional (3D) cellular automata model, which considered the influences of the coupling diffusion of Cr and C, and the interfacial diffusion between pearlite lamellae and the pearlite lamellar orientation, was established based on the thermodynamic equilibrium data obtained from the Thermo-Calc software and the simulation results of the DICTRA module. To clarify the influences of the heating rate on the austenitization kinetics and validate the simulation results, the austenitization processes of a Fe-1C-1.41Cr steel for different heating rates were studied with a series of dilatometric experiments. The good agreements between the cellular automata simulation results and the experimental results showed that the newly proposed cellular automata model is reasonable. The experimental results show an obvious change of the transition activity energies from the low to high heating rates. The transition from partitioning local equilibrium (PLE) to non-partitioning local equilibrium (NPLE) mechanisms was proved with DICTRA simulations. Basing on the simulation results, the influences of the pearlite lamellae orientation on the austenitization kinetics and the topological aspects of austenite grains were evaluated. In addition, the topological aspects of the rapidly austenitized grains were also compared to the normal grains.
6
Zhao, Guanghui, Ruifeng Zhang, Juan Li, Cuirong Liu, Huaying Li, and Yugui Li. "Study on Microstructure and Properties of NM500/Q345 Clad Plates at Different Austenitization Temperatures." Crystals 12, no. 10 (October 1, 2022): 1395. http://dx.doi.org/10.3390/cryst12101395.
Full textAbstract:
In this paper, the change in the mechanical properties of a composite plate was studied using the heat treatment method, and it was found that the performance of the composite plate was greatly improved under the process of quenching at 900 °C and tempering at 200 °C. The hot-rolled NM500/Q345 clad plates were subjected to heat treatment tests of 860 °C, 900 °C, and 940 °C austenitization + 200 tempering. With the help of an optical microscope, scanning electron microscope, EBSD, and transmission electron microscope, the microstructure, interface element distribution, and defect composition at the composite bonding interface of hot rolling and heat treatment were analyzed. An analysis and friction and wear tests were carried out on the wear resistance of the clad NM500. It was found that the microstructure of the NM500/Q345 clad plate before austenitization was mainly pearlite and ferrite, and both were transformed into lath martensite after austenitization. As the austenitization temperature increased, the size of the martensitic lath bundle also became coarse. After austenitization at 900 °C and tempering at 200 °C, the lath-like martensite structure of NM500 contained high-density dislocations between the laths. With the increase in the austenitization temperature, the surface Rockwell hardness showed a trend of first increasing and then decreasing. The wear was the worst when the material was not quenched. When the clad plate was quenched at 900 °C and tempered at 200 °C, the wear of NM500 was the lightest; the maximum depth of the wear scar was 14 μm; the width was the narrowest, 0.73 mm; and the wear volume was the smallest, 0.0305 mm3.
7
Rejeesh, Ravindran, Rakesh Kumar Barik, Rahul Mitra, Andrii Kostryzhev, Chitta R. Das, Shaju K. Albert, and Debalay Chakrabarti. "Effect of B and N Content and Austenitization Temperature on the Tensile and Impact Properties of Modified 9Cr-1Mo Steels." Metals 13, no. 6 (June 15, 2023): 1124. http://dx.doi.org/10.3390/met13061124.
Full textAbstract:
The present study investigates the relative effect of B and N concentrations and the austenitization temperature on the microstructure and mechanical properties (tensile and Charpy impact) of modified 9Cr-1Mo (P91) steels. Initially, a B-free P91 steel (with 500 ppm N) and four different B-containing steels (25–100 ppm) with varying N concentrations (20–108 ppm) were hot-rolled, normalized from different austenitization temperatures (1000–1100 °C/1 h) and finally tempered at 760 °C for 1 h. A Charpy impact test shows that the ductile–brittle transition temperature (DBTT) of all the B-added steels decreases with an increase in the austenitization temperature, where the 100 ppm B steel offers the lowest DBTT (−85 °C). Similarly, the strength increases with the increase in the austenitization temperature (1100 °C), with a slight drop in ductility. The influence of precipitates on the microstructure and mechanical properties is explained considering the B enrichment at the precipitates and the thermodynamic stability of the precipitates. The 100 ppm B steel (containing the maximum B and minimum N), normalized from 1100 °C austenitization, shows the best combination of tensile and Charpy impact properties, owing to the effective dissolution of coarse M23C6 and MX precipitates during the normalization treatment and the formation of fine B-rich (Fe,Cr)23(B,C)6 precipitates during the subsequent tempering.
8
Grigorieva, Raisa, Pascal Drillet, Jean Michel Mataigne, and Abdelkrim Redjaïmia. "Phase Transformations in the Al-Si Coating during the Austenitization Step." Solid State Phenomena 172-174 (June 2011): 784–90. http://dx.doi.org/10.4028/www.scientific.net/ssp.172-174.784.
Full textAbstract:
Nowadays more and more hot stamped steel sheets dedicated for the automotive body-in-white structure are pre-coated to prevent the steel surface against iron oxidation and decarburization during the austenitization step. For these applications, the coating is deposited by continuous hot-dipping the steel in an Al-Si bath. The Al-Si coating, at the delivery state, contains Al-grains, Al-Fe-Si ternary phases, Al-Fe binary phases. During the austenitization, the Al-Si coating transforms completely by inter-diffusion and solidification reactions. The mechanisms of Al-Fe-Si phase transformations at high temperature are almost unknown. The phase transformations occurring during austenitization define the final coating microstructure responsible for the in use properties of the product like spot welding, painting adherence or corrosion behavior. It is the aim of this paper to propose a new way of understanding the mechanisms of phase transformation in the Al-Si coating during the austenitization step (between 900 and 930°C) before the transfer into the hot-stamping press.
9
Silva, Cosme Roberto Moreira, Tiago F. O. Melo, José A. Araújo, J. L. A. Ferreira, and S. J. Gobbi. "Evaluation of Deep Criogenic Treatment at Microabrasive Wear of Aisi D2 Steel." Advanced Materials Research 1120-1121 (July 2015): 1257–63. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.1257.
Full textAbstract:
Wear resistance of tool steels can be increased with deep cryogenic treatment (DCT) application. Mechanisms related to DCT are still not completely understood. Microabrasive wear resistance of cryogenically treated samples of AISI D2 steel was evaluated in terms of austenitization temperature at heat treatment cycle and quenching steps related to DCT. X-ray difractometry, scanning and optical microscopy and quantitative evaluation of carbides with image analysis were carried out aiming material characterization. For samples subjected to higher austenitization temperatures, the DCT treatment does not increase abrasive wear resistance. For samples treated at lower austenitization temperature, the DCT treatment results on 44% increase at abrasive resistance. This effect is correlated to the increase of the amount of fine carbides distributed at samples matrices cryogenically treated.
10
Mandal, Siddhartha Sankar, Dipak Kumar Mondal, and Karuna Sindhu Ghosh. "Cyclic annealing versus continuous annealing of 20 wt.% chromium white cast iron." Metallurgical Research & Technology 118, no. 4 (2021): 404. http://dx.doi.org/10.1051/metal/2021044.
Full textAbstract:
To destabilize as-cast microstructure of 20 wt.% chromium white iron, cyclic annealing involving repeated austenitization for short duration of 0.6 h at 900, 950, 1000, 1050 and 1100 °C followed by forced air cooling is conducted as an alternative to continuous annealing requiring austenitization for longer period of 4–6 h at the said temperatures followed by furnace cooling. Continuous austenitization destabilizes the austenite matrix through precipitation of secondary carbides and transforms the alloy depleted austenite to pearlite on furnace cooling, thereby reducing the as-cast hardness from HV 669 to HV466. In contrast, repeated austenitization not only destabilizes the austenite matrix through precipitation of secondary carbides followed by its transformation to martensite on forced air cooling, but also causes disintegration of longer eutectic carbides to shorter segments with subsequent increase in hardness to as high as HV 890. Notched impact toughness after both continuous and cyclic annealing remains uniformly at 12.0 J as compared to as-cast value of 6.0 J. Besides, an unexpected rise in abrasive wear resistance after cyclic annealing treatment makes the alloy superior than that obtained by continuous annealing treatment as practiced in industries.
Dissertations / Theses on the topic "Austenitization"
1
COELHO, DANIEL MASSARI DE SOUZA. "EFFECT OF THE AUSTENITIZATION TEMPERATURE ON THE QUENCHING AND PARTITIONING PROCESS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=12177@1.
Full textAbstract:
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOO processo de Têmpera e Partição (T&P) possibilita a produção de aços com frações controladas de austenita retida, a partir do enriquecimento da austenita pela partição de carbono da martensita sem a precipitação de carbonetos. A austenita retida proporciona o efeito TRIP (plasticidade induzida por transformação), que confere ao material uma deformação uniforme e uma melhor absorção de energia durante o impacto. Os aços produzidos por este processo atendem principalmente às necessidades da indústria automobilística, que busca aços com melhores propriedades para a diminuição de peso e aumento da segurança dos automóveis. Nesta dissertação, ligas de aço com diferentes composições e tamanhos de grão foram produzidos pelo processo de Têmpera e Partição e a fração de austenita retida foi medida por difração de raios-X. As ligas também foram caracterizadas por nanoindentação, microscopia ótica e microscopia eletrônica de varredura. As amostras estudadas foram produzidas com uma austenitização completa a 930°C, realizada para promover um aumento no tamanho de grão, e os resultados foram comparados com amostras estudadas anteriormente com temperatura de austenitização de 890°C. Os resultados obtidos indicaram um aumento da fração de austenita retida com o aumento do grão austenítico original. Estes resultados foram interpretados com base no modelo teórico desenvolvido para o processo T&P.
The Quenching and Partitioning (Q&P) process allows the production of steels with controlled fractions of retained austenite from the enrichment of the austenite by carbon partitioning from the martensite without carbide precipitation. The retained austenite is responsible for the TRIP effect (transformation induced plasticity), which enhances the material behavior providing a uniform strain and a better energy absorption during impact. Steels produced by this process match the requirements of the automotive industry, which looks for weight reduction and safety improvements in cars. In the present dissertation, steels with different compositions and grain sizes were produced by the Quenching and Partition process and their retained austenite fraction was measured by x-ray diffraction. The steels were also characterized by nanoindentation, optical microscopy and scanning electron microscopy. The specimens studied were produced by a complete austenitization at 930°C, to promote an increase in the austenitic grain size, and the results were compared with previously studied specimens produced by a complete austenitization at 890°C. The experimental results indicate an increase of austenite fraction with an increase in grain size of the original austenite. These results were analyzed based on the theoretical model develop for the Q&P process.
2
Paulino, Wilson de Sousa. "Austenitização de aço hipoeutetóide a partir de estrutura esferoidizada e de estrutura normalizada." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-06112007-223544/.
Full textAbstract:
A influência do estado prévio, esferoidizado ou normalizado, sobre a formação de austenita em um aço hipoeutetóide foi estudada por dilatometria em várias temperaturas. O processo foi interrompido para tempos crescentes. As estruturas obtidas foram analisadas por microscopia ótica (incluindo metalografia quantitativa) e por microscopia eletrônica de varredura, o que, junto com as medidas dilatométricas serviu para identificar os mecaismos envolvidos. Em todas as condições estudadas a estrutura normalizada tem cinética de austenitização mais rápida que a esferoidizada. A austenitização do material esferoidizado (ferrita mais carbonetos dispersos) começa com a formação de grãos de austenita junto aos carbonetos e crescimentos dos grãos de austenita consumindo a ferrita e dissolvendo carbonetos, sendo este último o processo mais leto; durante o crescimento o teor de carbono na austenita é heterogêneo, tendendo a homogeneizar-se com o tempo. A temperabilidade da austenita é crescente com o tempo. A austenitização do material normalizado (ferrita pro-eutetóide, mais perlita fina) começa com a formação de austenita nas colônias de perlita, sem heterogeeidade detectada de distribuição de carbono; ao consumir as regiões de ferrita pro-eutetóide a austenita passa a apresentar heterogeneidade de distribuição de carbono; como etapa final do processo há homogeneização da austenita. A temperabilidade da austenita diminui na etapa em que ela resulta da transformação de ferrita, antes da homogeneização. A cinética global, medida por dilatometria e por metalografia quantitativa é apresentada na forma de curvas isotérmicas (TTT) de austenitização para as duas estruturas prévias estudadas.The influence of the previous state, spheroidized or normalized, on the austenite formation in a steel hypoeutectoid was studied by dila tometry in various temperatures. The process was interrupted for growing times. The obtained structures were analyzed by optic microscopy (including quantitative metallography) and by scanning electronic microscopy, which, with the dilatometric measurements, helped to identify the reaction mechanisms. In all of the studied conditions, the normalized structure has faster kinetics of austenitization than the spheroidized. The austenitization of the spheroidized material (ferrite plus dispersed carbides) begins with the formation of austenite grains close to the carbides and with the growth of the austenite grains consuming the ferrite and dissolving carbides, being this last one the slowest process; during growth the relative quantity of carbon in the austenite is heterogeneous, tending to homogenize with the time. The hardenability of the austenite is growing with the time. The austenitization of the normalized material (pro-eutectoid ferrite, plus fine pearlite) begins with austenite formation in the pearlitic colonies, without detected heterogeneity of carbon distribution, when consuming the pro-eutectoid ferrite areas the austenite show heterogeneity of carbon distribution; the final stage of the process is homogenization of the austenite. The hardenability of the austenite decreases during the process of ferrite transformation, before the homogenization. The global kinetics, measured by dilatometry and by quantitative metallographic, is presented in the form of isothermal curves (TTT) of austenitization for the two previous studied structures.
3
Silva, Joélson Vieira da. "Estudo da influência do tratamento térmico de austenitização seguida de resfriamento ao ar forçado na resistência ao desgaste abrasivo do ferro fundido branco ASTM A532 II D." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/170956.
Full textAbstract:
O objetivo desta pesquisa é realizar um estudo sobre o desgaste abrasivo do ferro fundido branco alto cromo de acordo com a norma ASTM A532 II D, submetidas à diferentes faixas de temperatura de austenitização, decompondo a faixa de 950 a 1.150 ºC, amplamente usada nas fundições, em intervalos de 50 ºC. Esta liga foi escolhida para estudo em virtude de sua extensa aplicação na indústria de mineração, possuindo como principal característica a utilização em revestimentos de moinhos e martelos de britadores, onde a resistência ao desgaste abrasivo é exigida. Os corpos de prova foram caracterizados através de análise química, dureza, e estrutura metalográfica, avaliando as mudanças na microestrutura, e consequentemente, alterações nas propriedades de resistência ao desgaste abrasivo do material. Na avaliação das amostras, foi utilizada a microscopia ótica e, para simular a condição de desgaste abrasivo, determinando a perda de massa, foi empregando o abrasômetro do tipo roda de borracha, seguindo a norma ASTM G65. Os testes práticos demostraram que o ciclo de temperatura é uma etapa importante na determinação da dureza, que por sua vez, é uma característica fundamental à resistência ao desgaste abrasivo, visto que para o material estudado, quanto maior a dureza, maior foi a resistência ao desgaste abrasivo.The objective of this research is to perform a study on the abrasive wear of high chromium white cast iron according to ASTM A532 II D, submitted to different austenitizing temperatures, in the range of 950 to 1150 ºC with 50 ºC steps, widely used in foundries. This alloy was chosen for study because of its extensive application in the mining industry, having as main characteristic the use in mill and hammer coatings of crushers where abrasive wear resistance is required. The specimens were characterized by chemical analysis, hardness, and metallographic analysis, evaluating the changes in the microstructure, and consequently changes in the abrasive wear properties of the material. In the evaluation of the samples, optical microscopy was used and, to simulate the abrasive wear condition, determining the mass loss, the rubber wheel type abrasive test was used, following the ASTM G65 standard. The practical tests demonstrated that the temperature cycle is an important step in determining the hardness, which in turn is a fundamental characteristic to the abrasive wear resistance, since for the material studied, the higher the hardness, the higher the resistance to abrasive wear.
4
Moreno, Marc. "Mécanismes métallurgiques et leurs interactions au recuit d’aciers ferrito-perlitiques laminés : caractérisation et modélisation." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0068.
Full textAbstract:
Les aciers Dual Phase (DP) ferrito-martensitiques sont largement utilisés sous la forme de tôles minces dans la construction automobile en raison de leur excellent compromis résistance/ductilité et donc pour leur potentiel d’allègement. Ils sont élaborés par coulée continue, laminage à chaud et à froid suivis d’un recuit continu. Durant l’étape de chauffage et de maintien de ce recuit, la microstructure ferrito-perlitique déformée issue des étapes de laminage se transforme en microstructure ferrito-austénitique recristallisée. L’expérience montre que les cinétiques de recristallisation et de transformation ainsi que la distribution spatiale et morphologique des microstructures résultantes sont très sensibles aux vitesses de chauffage. Ce travail de thèse s’intéresse aux différents mécanismes expliquant cette sensibilité comme la maturation des carbures, la restauration, la recristallisation de la ferrite et la transformation austénitique et toutes leurs interactions. Ces mécanismes métallurgiques ont été caractérisés à différentes échelles et par des approches in situ sur un acier industriel puis modéliser par des approches à base physique pour guider une possible production. Après un premier chapitre dédié aux techniques expérimentales et de modélisations utilisées, le second chapitre de ce travail s’intéresse principalement à la caractérisation de la morphogénèse des microstructures ferrito-austénitique en microscopie électronique à balayage (MEB). Le troisième chapitre est une étude détaillée en Microscopie Electronique à Transmission (MET) et par modélisation thermocinétique (ThermoCalc, DICTRA) de la composition des carbures tout au long du processus, du laminage à chaud au recuit. Restauration et recristallisation sont étudiées au chapitre 4 principalement par des expériences in situ en Diffraction des Rayons X à Haute Energie (DRXHE) sur ligne de lumière synchrotron et modélisées par une approche originale à champs moyen. Enfin, le chapitre 5 propose une étude sous DICTRA pour comprendre les cinétiques de transformation austénitique en fonction des vitesses de chauffe. Cette approche est novatrice car elle prend en compte les carbures intergranulaires de la ferrite, a été conduite en conditions anisothermes et propose une analyse fine des modes de croissance de l’austénite associées au manganèse, élément clef de la composition de ces alliagesFerrite/Martensite Dual-Phase steels are largely used in the form of thin sheets in the automotive industry for their excellent balance between resistance and strength and thus for their lightening potential. They are elaborated by continuous casting, hot- and cold- rolling, followed by a continuous annealing. During the heating and the soaking stages of this latter process, the deformed ferrite/pearlite microstructure obtained after rolling evolves is transformed into a recrystallized ferrite-austenite microstructure. The experiments show that recrystallization and austenite transformation kinetics as well as the resulting spatial and morphological distribution of the phases are highly sensitive to the heating rate. This PhD thesis aims at understanding the different metallurgical mechanisms explaining this particular sensitivity as carbides ripening, recovery, recrystallization and austenite transformation and all their possible interactions. The mechanisms were characterized at different scales and by in situ technics on an industrial steel and model by physical based approaches in order to drive future production lines. After a first chapter dedicated to the experimental and modeling methods, the second chapter deals with the characterization of the morphogenesis of ferrite-austenite microstructures by Scanning Electron Microscopy (SEM). Chapter 3 is a study by Transmission Electron Microscopy (TEM) and by thermokinetic modeling (ThermoCalc, DICTRA) of the chemical composition of carbides along with manufacturing, from hot-rolling to annealing. Recovery and recrystallization are studied in chapter 4 by the means of in situ High Energy X-Ray Diffraction (HEXRD) experiments conducted on a synchrotron beamline and modeled by an original mean-field approach. Finally, chapter 5 proposes an analysis with DICTRA to understand austenite transformation kinetics as function of heating rates. The proposed approach is innovative as it accounts for intergranular carbides in the ferrite matrix, is conducted in non-isothermal conditions and propose a fine analysis of growth modes of austenite associated to manganese, a key alloying element of the studied steels
5
Moreno, Marc. "Mécanismes métallurgiques et leurs interactions au recuit d’aciers ferrito-perlitiques laminés : caractérisation et modélisation." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0068.
Full textAbstract:
Les aciers Dual Phase (DP) ferrito-martensitiques sont largement utilisés sous la forme de tôles minces dans la construction automobile en raison de leur excellent compromis résistance/ductilité et donc pour leur potentiel d’allègement. Ils sont élaborés par coulée continue, laminage à chaud et à froid suivis d’un recuit continu. Durant l’étape de chauffage et de maintien de ce recuit, la microstructure ferrito-perlitique déformée issue des étapes de laminage se transforme en microstructure ferrito-austénitique recristallisée. L’expérience montre que les cinétiques de recristallisation et de transformation ainsi que la distribution spatiale et morphologique des microstructures résultantes sont très sensibles aux vitesses de chauffage. Ce travail de thèse s’intéresse aux différents mécanismes expliquant cette sensibilité comme la maturation des carbures, la restauration, la recristallisation de la ferrite et la transformation austénitique et toutes leurs interactions. Ces mécanismes métallurgiques ont été caractérisés à différentes échelles et par des approches in situ sur un acier industriel puis modéliser par des approches à base physique pour guider une possible production. Après un premier chapitre dédié aux techniques expérimentales et de modélisations utilisées, le second chapitre de ce travail s’intéresse principalement à la caractérisation de la morphogénèse des microstructures ferrito-austénitique en microscopie électronique à balayage (MEB). Le troisième chapitre est une étude détaillée en Microscopie Electronique à Transmission (MET) et par modélisation thermocinétique (ThermoCalc, DICTRA) de la composition des carbures tout au long du processus, du laminage à chaud au recuit. Restauration et recristallisation sont étudiées au chapitre 4 principalement par des expériences in situ en Diffraction des Rayons X à Haute Energie (DRXHE) sur ligne de lumière synchrotron et modélisées par une approche originale à champs moyen. Enfin, le chapitre 5 propose une étude sous DICTRA pour comprendre les cinétiques de transformation austénitique en fonction des vitesses de chauffe. Cette approche est novatrice car elle prend en compte les carbures intergranulaires de la ferrite, a été conduite en conditions anisothermes et propose une analyse fine des modes de croissance de l’austénite associées au manganèse, élément clef de la composition de ces alliagesFerrite/Martensite Dual-Phase steels are largely used in the form of thin sheets in the automotive industry for their excellent balance between resistance and strength and thus for their lightening potential. They are elaborated by continuous casting, hot- and cold- rolling, followed by a continuous annealing. During the heating and the soaking stages of this latter process, the deformed ferrite/pearlite microstructure obtained after rolling evolves is transformed into a recrystallized ferrite-austenite microstructure. The experiments show that recrystallization and austenite transformation kinetics as well as the resulting spatial and morphological distribution of the phases are highly sensitive to the heating rate. This PhD thesis aims at understanding the different metallurgical mechanisms explaining this particular sensitivity as carbides ripening, recovery, recrystallization and austenite transformation and all their possible interactions. The mechanisms were characterized at different scales and by in situ technics on an industrial steel and model by physical based approaches in order to drive future production lines. After a first chapter dedicated to the experimental and modeling methods, the second chapter deals with the characterization of the morphogenesis of ferrite-austenite microstructures by Scanning Electron Microscopy (SEM). Chapter 3 is a study by Transmission Electron Microscopy (TEM) and by thermokinetic modeling (ThermoCalc, DICTRA) of the chemical composition of carbides along with manufacturing, from hot-rolling to annealing. Recovery and recrystallization are studied in chapter 4 by the means of in situ High Energy X-Ray Diffraction (HEXRD) experiments conducted on a synchrotron beamline and modeled by an original mean-field approach. Finally, chapter 5 proposes an analysis with DICTRA to understand austenite transformation kinetics as function of heating rates. The proposed approach is innovative as it accounts for intergranular carbides in the ferrite matrix, is conducted in non-isothermal conditions and propose a fine analysis of growth modes of austenite associated to manganese, a key alloying element of the studied steels
6
Calcinelli, Luca. "Ottimizzazione del trattamento termico di acciai inossidabili martensitici per stampi." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textAbstract:
L’acciaio inossidabile martensitico AISI 420 viene impiegato per la realizzazione di stampi per la formatura di materie plastiche grazie alle sue elevate proprietà di resistenza all'usura e stabilità dimensionale. Esse sono funzione del trattamento termico che esso subisce e che può compromettere proprietà meccaniche e corrosive tipiche di questo acciaio. Il presente studio prende avvio proprio da queste considerazioni e dagli esiti di alcune failure analysis su stampi per bottiglie in PET, in cui sono state evidenziate rotture per fatica innescate da pitting corrosivo con propagazione intergranulare.
Nell’ambito della sperimentazione riportata si è cercato di ottimizzare il trattamento termico di bonifica in modo da massimizzare resistenza a corrosione, a fatica e resilienza pur garantendo una sufficiente stabilità dimensionale. A seguito di un approfondimento bibliografico, si è definita una microstruttura obiettivo caratterizzata dalla presenza di carburi M23C6 globulizzati ed uniformemente distribuiti nella matrice martensitica e si sono testate differenti condizioni di trattamento termico.
L'esito della sperimentazione, che si è avvalsa di tecniche di microscopia ottica ed elettronica, ha indicato come trattamento ottimale quello costituito da una austenitizzazione di 30 minuti a 1020°C seguito da una tempra in azoto a 10 bar ed un ciclo di tre rinvenimenti a 250°C. La ridotta temperatura di austenitizzazione ha permesso la limitazione dei tenori di austenite residua mentre elevata velocità di raffreddamento impiegata e ridotte temperature di rinvenimento hanno permesso di evitare la precipitazione di carburi fini infragilenti e causa di sensibilizzazione.
Sono state inoltre eseguite numerose analisi che hanno permesso di accertare una certa variabilità microstrutturale del materiale allo stato di fornitura evidenziando come la microstruttura di quest'ultimo sia fondamentale per ottenere l'esito desiderato dal trattamento termico.
7
Mondelin, Alexandre. "Modélisation de l'intégrité des surfaces usinées : Application au cas du tournage finition de l'acier inoxydable 15-5PH." Phd thesis, Ecole Centrale de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00838512.
Full textAbstract:
En usinage, la zone de coupe présente des conditions de température, des cinétiques thermiques, des déformations et des pressions extrêmes. Dans ce contexte, être capable de relier les variations des conditions de coupe (vitesse de coupe, avance, lubrification, usure, outil,...) à l'intégrité de la surface usinée constitue un objectif scientifique majeur. Cette thèse s'intéresse au cas du tournage finition du 15-5PH (acier inoxydable martensitique utilisé, entre autre, pour la fabrication des pièces de rotor d'hélicoptère ainsi que les pompes et les vannes de circuit primaire de centrale nucléaire) et s'inscrit dans le cadre du projet MIFSU (Modélisation de l'Intégrité et de la Fatigue des Surfaces Usinées).Dans un premier temps, le comportement du matériau a été étudié afin d'alimenter les simulations d'usinage. Des essais de dilatométrie libre ont été conduit afin de calibrer les cinétiques d'austénitisation du 15-5PH pour des vitesses de chauffe élevées (jusqu'à 11000 °C/s). Les paramètres du modèle de changement de phase de Leblond ont alors été identifiés. De plus, des essais de compression dynamique (dε/dt allant de 0.01 à 80 /s et ε > 1) ont été réalisés pour calibrer une loi de comportement élasto-plastique aux grandes déformations avec une sensibilité à la vitesse de déformation. Ces essais ont aussi permis de mettre en évidence des phénomènes de recristallisation dynamique et leurs influences sur la contrainte d'écoulement du matériau. Un modèle de recristallisation dynamique a donc également été mis en œuvre.En parallèle, un modèle numérique de prédiction de l'intégrité des surfaces tournées a été construit. Ce modèle repose sur une méthodologie dite " hybride " (développée au cours de la thèse Frédéric Valiorgue pour l'acier AISI 304L) qui consiste à supprimer la modélisation de l'outil de coupe et de la formation du copeau, et à remplacer l'impact thermomécanique de ces derniers sur la surface usinée par des chargements équivalents. Une étape de calibration de ces chargements a donc été réalisée à travers des essais de coupe orthogonale et de frottement (étude de sensibilité des efforts d'usinage, du coefficient de frottement et du coefficient de partage thermique) aux variations des paramètres de coupe.Enfin, les résultats des simulations numériques de tournage portant sur la prédiction des changements de microstructure (austénitisation et recristallisation dynamique) ainsi que des contraintes résiduelles ont été comparés aux résultats issus d'une campagne d'essais de chariotage.
8
Chiu, Chun-Yao, and 邱俊堯. "Effects of Austenitization Heating Rate on Mechanical Properties of ADI." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/11175102125936770065.
Full textAbstract:
碩士大同工學院
材料工程學系
84
In this study, the effects of different austenitization heating rate on mechanical properties of Austempered Ductile Iron (ADI) was investigated. Mass effect of 1*,2*,4* Y-blocks and possible segregation were studied as well. High austenitization heating-rate were accomplished by using induction furnace while conventional air furnace was also used for comparison. The results revealed that the tensile strength and impact toughness of the as-cast material were improved by both R. F. induction and conventional atmosphere furnace austenitizing heat treatment to become ADI. Specimens treated by conventional atmosphere furnace (900℃/ 1.5 hrs- 300℃/ 3 hrs) showed a tensile strength of 1250-1290 MPa but the impact energy absorbed was only 18-34 J, while the specimens treated with R. F. induction (950℃/ 7 min.- 340℃/ 40 min.) showed a little bit lower tensile strength at 910-980 MPa but the impact energy absorbed was higher in the range of 42-56 J along with better ductility.Microstructural analysis were performed to correlate the structural features to the properties obtained.
9
Qiu, Zun-Yao, and 邱俊堯. "EFFECTS OF AUSTENITIZATION HEATING RATE ON MECHANICAL PROPERTIES OF ADI." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/04681046741372723616.
Full text
10
Huang, Li-wen, and 黃禮汶. "The Study of Austenitization for Nickel-free High Nitrogen Stainless Steel." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/89247807446204163615.
Full textAbstract:
碩士逢甲大學
材料科學所
96
In this study, the Fe-Cr-Mn-N nickel-free stainless steels were synthesized firstly by induction melting to investigate the influence of Cr, Mn and the pouring temperature on nitrogen content and austenitization in alloys. Secondly, the alloys were synthesized by arc melting to evaluate the influence of electrode materials on nitrogen content in alloys. The linear regression method was applied to get the Mn equivalent (Mneq) using the chemical compositions of alloys made by arc melting. Finally, the effects of Mn and N on corrosion resistance of present alloys were studied. The results show that all alloys with high nitrogen contents made by induction melting are complete austenitization and exist a single FCC phase. The maximum N content of alloy made by this method is 0.77wt% and the N content is increased with the increase of Cr or Mn content. High Cr content in alloy shows a great advantage of N absorption. There is no distinct variation of N content in alloys cast from different pouring temperatures. Put the chemical compositions of alloys into the Ni equivalent (Nieq) equation proposed by Hull, in comparison with the values of Ni equivalent and the crystalline structures, it shows the values of Nieq tend to be lower. The N content of alloys increases effectively by arc melting. In arc melting, using the tungsten electrode is better than using the graphite electrode in N absorption of alloy. The Mneq, as an austenitization index, can be expressed by a function of Mneq= Mn + 278.43C + 197.65N after linear regressing from the chemical compositions of alloys. The results of corrosion test show that N can increase corrosion resistance strongly but Mn seems to have an opposite effect.
Books on the topic "Austenitization"
1
Brooks, Charlie R. Principles of the austenitization of steels. London: Elsevier Applied Science, 1992.
Find full text
2
Gao, Hong. Austenitization and subsequent grain growth in microalloyed low carbon HSLA steel. Birmingham: University of Birmingham, 1987.
Find full text
3
Brooks, Charlie R. Principles of the Heat Treatment of Plain Carbon and Low Alloy Steels. ASM International, 1996. http://dx.doi.org/10.31399/asm.tb.phtpclas.9781627083539.
Full textAbstract:
Principles of the Heat Treatment of Plain Carbon and Low Alloy Steels provides readers with a working knowledge of heat treat processes and how they can be tailored to optimize the microstructure and properties of steel. The book includes chapters on quenching, tempering, austenitization, and annealing as well as hardenability, modeling, and common treatments for structural steels. The first few chapters lay essential groundwork for understanding how time, temperature, and prior processing history influence the formation of Fe-C phases and the composition and morphology of the microconstituents found in carbon and low alloy steels. The chapter on structural steels explains how deformation and thermal processing are used for the development and control of grain size and how carbon and manganese content influence toughness, hardness, and strength. The final chapter presents worked solutions to real-world problems related to hardenability, quenching, grain size, alloy content, treatment times and temperatures, and the determination of property ranges. The book includes an extensive amount of composition and property data, a glossary of terms, and outlines for various calculation methods. For information on the print version, ISBN 978-0-87170-538-9, follow this link.
Book chapters on the topic "Austenitization"
1
Nakai, Kiyomichi, Norihiro Kanno, Ryo Asakura, Tatsuaki Sakamoto, Sengo Kobayashi, Masahiko Hamada, and Yuichi Komizo. "Effects of Transformation Stress and Deformation before Austenitization on Nucleation of Intragranular Bainite." In Materials Science Forum, 2053–58. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-462-6.2053.
Full text
2
Roósz, András, and Gábor Karacs. "Simulation of Austenitization Processes in Fe–C Steels by Coupled Cellular Automaton and Finite Difference Methods." In 18th International Federation for Heat Treatment and Surface Engineering, 248–71. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2011. http://dx.doi.org/10.1520/stp49436t.
Full text
3
Roósz, András, and Gábor Karacs. "Simulation of Austenitization Processes in Fe–C Steels by Coupled Cellular Automaton and Finite Difference Methods." In 18th International Federation for Heat Treatment and Surface Engineering, 248–71. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2011. http://dx.doi.org/10.1520/stp153220120018.
Full text
4
Zurnadzhy, Vadym, Yuliia Chabak, Vasily Efremenko, Alexey Efremenko, and Maria Podobova. "Structure and Mechanical Properties of V, Nb-Added TRIP-Assisted Steel After Q&P Treatment with Near Ac3 Austenitization." In Advanced Manufacturing Processes V, 346–55. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-42778-7_32.
Full text
5
"Austenitization." In Light Microscopy of Carbon Steels, 185–220. ASM International, 1999. http://dx.doi.org/10.31399/asm.tb.lmcs.t66560185.
Full text
6
"Austenitization." In Steel Metallurgy for the Non-Metallurgist, 107–15. ASM International, 2007. http://dx.doi.org/10.31399/asm.tb.smnm.t52140107.
Full text
7
"Austenitization of Steels." In Principles of the Heat Treatment of Plain Carbon and Low Alloy Steels, 205–34. ASM International, 1996. http://dx.doi.org/10.31399/asm.tb.phtpclas.t64560205.
Full textAbstract:
Abstract Austenitization is the heat treatment of steel in the austenite region, and it is conducted for two reasons. One is to obtain austenite as a necessary precursor for heat treatment, and this is the main emphasis of this chapter. The other is to chemically homogenize steel, so that concentration gradients formed during solidification upon casting are minimized; this is briefly described in this chapter. Austenitization topics covered in this chapter are dendritic segregation in steels, austenitization to remove coring, ingot segregation, grain growth behavior, formation of austenite, austenite grain size, heating in the austenite region, and practical austenitizing temperatures.
8
Yang, Dong-Shyen, and Ta-Jen Peng. "A study on the properties of ADI with two-step austenitization." In Applied System Innovation, 13–17. CRC Press, 2016. http://dx.doi.org/10.1201/b21811-5.
Full text
9
Chen, Gang, Jili Yin, Peixing Liu, and Ahmad Jalal Khan Chowdhury. "Development of New Hot Forming Process for High Strength Steel Tubes." In Proceedings of the 2022 International Conference on Smart Manufacturing and Material Processing (SMMP2022). IOS Press, 2022. http://dx.doi.org/10.3233/atde220829.
Full textAbstract:
The widely adopted the high strength steel tube is an important way to solve the lightweight body and collision safety. The traditional high pressure tube hydroforming and hot gas forming through “expansion” deformation to form hollow parts, and the internal pressure is the deformation driving force. There are some industrial difficulties such as heavy dependence on high pressure, wall thickness thinning and low production efficiency, which limits the production and application of high-strength steel tubes. Based on the principle of compression deformation, this paper develops the hot hydro-forging process to form the high-strength steel tubes. After the tube blank is heated to austenitization, the tube is compressed and deformed by the die closing force of the die through a new die structure. The internal pressure only plays a supporting role, which fundamentally avoids the thickness thinning and cracking under the expansion deformation mode, and has the advantages of rapid forming time and uniform quenching. Finally, the A-pillar tube with 1500 MPa is formed through the reasonable hot hydro-forging process.
Conference papers on the topic "Austenitization"
1
Verma, M., J. R. Culham, M. Di Ciano, and K. J. Daun. "Development of a Thermo-Metallurgical Model to Predict Heating and Austenitization of 22MnB5 for Hot Forming Die Quenching." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71013.
Full textAbstract:
Hot forming die quenching (HFDQ) is used to transform ultrahigh strength steel blanks into martensitic body-in-white components that are lighter than parts made from traditional mild steels, without sacrificing crash performance. The part is sometimes locally reinforced by spot-welding patches to the blanks, but the increased thickness of the patched blanks sometimes results in incomplete austenitization, which can compromise the strength of as-formed parts. This paper presents an integrated thermo-metallurgical model of the austenitization of Al-Si coated 22MnB5 within a roller hearth furnace. While previous models account for the latent heat of austenitization by heuristically adjusting the specific heat, the present model explicitly simulates austenite formation using a first-order metallurgy submodel derived from dilatometry measurements. The model is validated by comparing predicted temperatures to measurements carried out on coupons heated within a lab-scale muffle furnace and full-sized blanks heated in an industrial-scale roller hearth furnace. Finally, the model is used to optimize roller speed based on zone temperatures.
2
"Influence of heating rate on austenitization temperatures of S355J2G3 steel." In Engineering Mechanics 2018. Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 2018. http://dx.doi.org/10.21495/91-8-925.
Full text
3
Khudorozhkova, J. V., and S. V. Burov. "Choice of austenitization regimes for roll steel with 5 % of chromium." In 2008 Third International Forum on Strategic Technologies (IFOST). IEEE, 2008. http://dx.doi.org/10.1109/ifost.2008.4602856.
Full text
4
Singh, Satnam, and Balraj Singh. "Parametric study and optimization of austenitization and austempering on ductile iron." In THE FOURTH SCIENTIFIC CONFERENCE FOR ELECTRICAL ENGINEERING TECHNIQUES RESEARCH (EETR2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0163070.
Full text
5
Tao, W. J., W. K. Liang, and Y. S. Zhang. "Investigation on Influence of Rapid Heating on Austenitization of Ultra-High Strength Steel." In The 2nd International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813140622_0082.
Full text
6
von Willingh, S., RD Knutsen, and RJ Curry. "Influence of Microstructure on the Creep Properties of Grade P22 Steel." In AM-EPRI 2019, edited by J. Shingledecker and M. Takeyama. ASM International, 2019. http://dx.doi.org/10.31399/asm.cp.am-epri-2019p0174.
Full textAbstract:
Abstract The creep strength and ductility of Grade P22 steel (2¼ Cr) was measured at 600°C under standard uniaxial tensile conditions at 150MPa. Test specimens were prepared by solution heat treatment at austenitization temperatures ranging from 900°C - 1200°C followed by normalization at 900°C before continuous air cooling to room temperature. In addition to specimens tested in the solution treated state, creep tests were also performed after tempering. The variable austenitization temperatures gave rise to different prior austenite grain (PAG) sizes, which in turn influenced the crystallographic packet and block boundary misorientation angle distribution. The latter parameters were measured using electron backscattered diffraction which also allowed partial reconstruction of the PAG boundaries. The time to creep failure at 600°C increased as function of PAG size up to approximately 70µm, but significantly decreased when the average prior austenite grain size measured approximately 108 µm. However, the minimum creep rate decreased even up to the largest PAG size with corresponding decrease in creep ductility. The stability of the crystallographic packet and block boundaries influences the high strength-low ductility for the large PAGs in comparison to the dominant effect of PAG boundaries at the smallest grain size where extensive recovery and recrystallization reduces creep strength.
7
Ganesh, Hari S., Ofodike A. Ezekoye, Thomas F. Edgar, and Michael Baldea. "Improving energy efficiency of an austenitization furnace by heat integration and real-time optimization." In 2018 IEEE International Conference on Automation, Quality and Testing, Robotics (AQTR). IEEE, 2018. http://dx.doi.org/10.1109/aqtr.2018.8402763.
Full text
8
Ferreira Salgado Junior, Dair. "AUSTENITIZATION OF WELDING BEADS IN A S32750 MADE WITH ND:YAG PULSED LASER THROUGH HEAT TREATMENT." In 25th International Congress of Mechanical Engineering. ABCM, 2019. http://dx.doi.org/10.26678/abcm.cobem2019.cob2019-0238.
Full text
9
Cataldi, Thiago, Jéssica Santana, Piter Gargarella, Lucas Pallu, and Frederico Hirota. "Effect of Austenitization Time on Al-Si Coating of 22MnB5 Steel: Influence on Projection Welding." In SAE BRASIL 2021 Web Forum. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2022. http://dx.doi.org/10.4271/2021-36-0015.
Full text
10
He, F. "Investigation of the influence of workpiece-side parameters on the layer formation of zinc-coated boron-manganese steel." In Sheet Metal 2023. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902417-53.
Full textAbstract:
Abstract. The hot stamping process has been established as a technology for the production of ultrahigh-strength steel parts for safety-relevant components in lightweight construction for the automotive sector. Thanks to the reduced overall thickness combined with high tensile strength, it is possible to realize lightweight design concepts with improved crash behavior. Boron-manganese steels are usually used for this purpose. Due to initial process temperatures above 800 °C, hot stamping is considered a lubricant-free process. In addition to high friction and wear in the process, surface scaling and the need for tool repairs are the result. In light of these phenomena, hot stamping materials are coated to protect them from corrosion. Until now, aluminum-silicon-based coatings have been primarily used for the direct hot stamping route. While zinc-based coatings have so far mainly found usage in the indirect process route, they are now also become a valid alternative for the direct process route. In previous investigations, a significant influence of workpiece-side parameters on the formation of the coating during the austenitization process was found for aluminum-silicon (AlSi) coatings. In light of this, a similarly significant influence is suspected for zinc-based coatings. The parameters heating rate, furnace temperature and dwell time in the furnace and the effect on the coating formation of zinc-coated 20MnB8 during austenitization will be investigated. The resulting findings will form the basis for further experiments to investigate the influence of the parameters on friction and wear in the industry near strip drawing tests.