Relevant bibliographies by topics / Solid boriding

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Solid boriding'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Solid boriding"

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BICAN, OSMAN, SALIH UGUR BAYCA, SULE OCAK-ARAZ, BUNYAMIN YAMANEL, and NACI ARDA TANIS. "EFFECTS OF THE BORIDING PROCESS AND OF QUENCHING AND TEMPERING AFTER BORIDING ON THE MICROSTRUCTURE, HARDNESS AND WEAR OF AISI 5140 STEEL." Surface Review and Letters 27, no. 06 (2019): 1950157. http://dx.doi.org/10.1142/s0218625x19501579.

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An investigation was made on the effects of the boriding process and of quenching and tempering after boriding on the microstructure, hardness and wear of AISI 5140 steel. In this study, a new boriding agent (Baybora[Formula: see text]–1) developed for the solid boriding method was used. It was observed that the wear resistance of the borided samples increased by about four times, but the wear resistance of the sample subjected to quenching and tempering after boriding increased by only about two times. Thus, it was determined that quenching and tempering after boriding worsen wear resistance.
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Kaplan, Yavuz, Ahmet Cetin Can, and Arzum Ulukoy. "A new medium for boriding of Ti6Al4V alloy for biomedical applications." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 233, no. 2 (2016): 109–19. http://dx.doi.org/10.1177/1464420716662801.

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This study presents a low-cost and environmentally friendly medium for the pack boriding (boronizing) of a Ti6Al4V alloy. Titanium and its alloys are known to be highly reactive and to have extreme oxygen affinity. Therefore, boriding is performed under vacuum or in protective atmospheric conditions. This work evaluated the pack boriding heat treatments of a Ti6Al4V alloy under atmospheric conditions via the various boriding media used by previous researchers. In addition, a new pack boriding medium was developed by adding aluminum. Consequently, this study demonstrated that it is possible to obtain an undamaged titanium surface by applying solid-state boriding under atmospheric conditions.
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3

Li, Feng Hua, Xiao Hong Yi, Jing Lei Zhang, and Zhan Guo Fan. "Study on Rare Earth Catalysis in the Boriding Process to Titanium Alloy." Applied Mechanics and Materials 48-49 (February 2011): 1177–81. http://dx.doi.org/10.4028/www.scientific.net/amm.48-49.1177.

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Solid powder boriding experiment was carried out on TC4 titanium alloy surface with method of RE(rare earth)-boriding at the temperature of over 1000°C. By means of XRD, SEM and EDS, phase composition, microstructure and morphology of TC4 titanium alloy after RE-boriding were investigated. The effect of rare earth on phase composition was discussed. Results of the experiment showed that the diffusion layer was composed of top-layer TiB2 and sub-layer TiB whiskers with the highest thickness being 25μm. The XRD results revealed TiB-TiB2 biphasic B-Ti compounds layer formed on the surface of TC4 after RE-boriding. The high content of B and Ce in the surface layer showed rare earth increased the absorption and concentration of B atoms.
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CALIK, A., N. UCAR, A. KOCASLAN, and S. KARAKAS. "EFFECT OF INTERRUPTED BORIDING ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF 16MnCr5 STEELS." Surface Review and Letters 25, no. 07 (2018): 1950022. http://dx.doi.org/10.1142/s0218625x19500227.

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The microstructure, microhardness and tensile properties of continuously borided and interrupted borided 16MnCr5 steel were compared. In the continuous process, boriding was carried out continuously at 1273[Formula: see text]K for 16[Formula: see text]h. In the interrupted process, after 5[Formula: see text]h of boriding at 1273[Formula: see text]K, the crucible containing the specimens and the boriding powders was removed from the furnace and cooled to 873[Formula: see text]K in still air for 30[Formula: see text]min and this procedure was repeated three times. Both boriding treatments were achieved in a solid medium using the powder pack method with commercial Ekabor-I powders as the boron source. X-ray diffraction studies indicated the presence of FeB and Fe2B phases in the boride layers for both boriding treatments. The transition zone was more pronounced in the continuously borided steel. The average hardness values of the boride layers were 1759 and 1648[Formula: see text]HV0.1 for the continuously borided and interrupted borided steels, respectively. The hardness of the boride layers were considerably higher than the 200[Formula: see text]HV0.1 hardness of the untreated steel. No significant difference in tensile properties could be observed between the two different boriding procedures.
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Kaplan, Yavuz, Mehmet Gülsün, and Sinan Aksöz. "Formation of boride layers on a commercially pure Ti surface produced via powder metallurgy." International Journal of Materials Research 112, no. 4 (2021): 303–7. http://dx.doi.org/10.1515/ijmr-2020-8163.

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Abstract In this study, powder metallurgy was applied in a furnace atmosphere to form titanium boride layers on a commercially pure Ti surface. Experiments were carried out using the solid-state boriding method at 900 °C and 1000°C for 12 h and 24 h. Samples were produced by pressing the commercially pure Ti powders under 870 MPa. The sintering process required by the powder metallurgy method was carried out simultaneously with the boriding process. Thus, the sintering and boriding were performed in one stage. The formation of the boride layer was investigated by field emission scanning electron microscopy, optical-light microscopy, X-ray diffraction, and elemental dispersion spectrometry analyses. In addition, microhardness measurements were performed to examine the effect of the boriding process on hardness. The Vickers microhardness of the boronized surface reached 1773 HV, which was much higher than the 150 HV hardness of the commercially pure Ti substrate. The X-ray diffraction analysis showed that the boriding process had enabled the formation of TiB and TiB2 on the powder metallurgy Ti substrate surface. Consequently, the production of Ti via powder metallurgy is a potentially cost-effective alternative to the conventional method, and the boriding process supplies TiB and TiB2 that provide super-high hardness and excellent wear and corrosion resistance.
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6

Benhabib, B., O. Allaoui, and M. E. Djeghlal. "Boro-Nitriding of 25CrMo4, 42CrMo4 and 55CrMoV4 Low Alloy Steels." Advanced Science, Engineering and Medicine 12, no. 3 (2020): 371–75. http://dx.doi.org/10.1166/asem.2020.2533.

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In this work, we study the effect of boriding and nitriding treatments on microhardness and corrosion resistance of three different low alloy steels (25CrMo4, 42CrMo4 and 55CrMoV4). The thermochemical treatments were carried out in solid medium by the powder technique at 900 °C for 4 hours in boriding treatment, and at 550 °C for 12 hours in nitriding treatment. The obtained results show that the boride and nitride layers formed on the surface of treated steels contained FeB, Fe2B, CrN, Fe3N and Fe4N phases. Microhardness of boride and nitride layers are between 850 HV0.05 and 2100 HV0.05. Corrosion tests have shown the beneficial effect of boriding and nitriding treatments on treated steels.
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Bensalah, Benhabib, Allaoui Omar, and Djeghlal Mehammad Elamine. "Microstructure and Mechanical Properties of the 55CrMoV4 Steel Exposed to Boriding and Nitriding Treatments." Annales de Chimie - Science des Matériaux 45, no. 4 (2021): 291–95. http://dx.doi.org/10.18280/acsm.450404.

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In this study boriding and nitriding treatments were carried out on 55CrMoV4 low alloyed steel. The thermochemical treatments were carried out in solid medium by the powder technique at 900℃ for 4 hours for boriding treatment and at a temperature of 550℃ for 12 hours for nitriding treatment. The phases analysis of the boride and nitrite layers formed on the surface was carried out by optical microscopy (OM), and X-ray diffraction (XRD). The results of the surface analysis show that the boride and nitride layers a presence of FeB, Fe2B, CrN, Fe3N and Fe4N compounds. The thickness of boride layers and nitride layers was found to be 55 and 12 µm, respectively. Microhardness of boride and nitride layers are between 800 HV0.2 and 1200 HV0.2. Corrosion tests by immersion in a 1M HCl solution have shown the beneficial effect of boriding and nitriding treatments on treated steels. Increase in corrosion resistances was observed after nitriding and boriding treatment steel 55CrMoV4 was around 6 times.
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8

Kara, Gökhan, Gencaga Purcek, and Harun Yanar. "Improvement of wear behaviour of titanium by boriding." Industrial Lubrication and Tribology 69, no. 1 (2017): 65–70. http://dx.doi.org/10.1108/ilt-11-2015-0174.

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Purpose The purpose of this paper is to achieve a hard and protective borided layer on commercially pure Ti (grade-2) by applying boriding, and to investigate the changes in its microstructure, hardness, friction and wear behaviors. Design/methodology/approach Pack boriding technique was used to form a hard boron diffusion layer on titanium substrate. A powder mixture of amorphous boron and anhydrous borax was used as a solid-state boriding media, and then the boriding was carried out under inert atmosphere. Findings A thick dual boride layer consisting of a monolithic titanium diboride (TiB2) on the top and titanium monoboride (TiB) whiskers beneath that layer formed at relatively low diffusion temperature under pressured inert argon atmosphere in a boriding media containing boron source and activator. With boriding at specified conditions, very hard (4100 Hv0.01) and thick monolithic TiB2 layer formed on the top-most layer which is required for improved tribological applications. Hardness decreased gradually through the TiB whisker layer and finally reached to the hardness of base material. Originality/value This paper investigates the effects of components of boriding mixture and conditions of thermal treatment on the formation of borided layer and its properties. In previous studies, boriding mixtures containing a boron source, an activator and a filler material was generally used at high temperatures around or above 1,050°C to achieve a thick monolithic layer on the top of the surface of titanium. In the present study, no filler material was used to accelerate the boron diffusion because filler materials may inhibit the diffusion of boron atom through the surface of substrate of titanium. Also, diffusion treatment was carried out under pressurized argon atmosphere at relatively low diffusion temperature to achieve boride layer with the improved hardness and durability.
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9

Katasonov, Alexander, Vladimir Malikov, and Alexey Ishkov. "Chemical reactions at high-speed HFC-boriding." E3S Web of Conferences 135 (2019): 01067. http://dx.doi.org/10.1051/e3sconf/201913501067.

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Strengthening of parts and units of machines, increased reliability and longer service life is an important task of modern industry. As an promising materials for protective-strengthening coatings, offered matrix composites based on the ternary system Fe-B-FenB. The article is proposed the complex heating of steel being borated and imbued medium by high frequency currents (HFC), and to combine the diffusion boriding from liquid and solid media and the transition of the diffusion boriding to chemical interaction between the elements of Fe and B. We determined the main components of the reaction-boronizing system, as well as their roles and possible processes that lead to the implementation of topochemical boriding initiated by HFC-heating. Confirmed the course of the reaction leading to the occurrence of reducing agents Ca, Si and active boron in the boronizing mixture.
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Ucar, Nazim, Sule Dogan, Mustafa Serdar Karakas, and Adnan Calik. "Boriding of Binary Ni–Ti Shape Memory Alloys." Zeitschrift für Naturforschung A 71, no. 11 (2016): 1017–20. http://dx.doi.org/10.1515/zna-2016-0289.

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AbstractBoriding of binary Ni–Ti shape memory alloys was carried out in a solid medium at 1273 K for 2, 4, 6, and 8 h using the powder pack method with proprietary Ekabor–Ni powders. Characterization of the boride layer formed on the surface of alloys was done by optical microscopy and scanning electron microscopy. The presence of boride, silicide, and borosilicide phases in the boride layers was confirmed by X-ray diffraction analysis. The thickness and microhardness of the boride layers increased with increasing boriding time. Hardness profiles showed a rapid decrease in hardness moving from the boride layer to the main structure. The high hardness of the boride layer was attributed mainly to the formation of TiB2. A parabolic relationship was observed between layer thickness and boriding time, and the growth rate constant for the boriding treatment was calculated as 0.62×10−8 cm2 s−1.
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Dissertations / Theses on the topic "Solid boriding"

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Krelling, Anael Preman. "Estudo do comportamento tribológico do aço AISI H13 submetido a tratamento termoquímico de boretação." Universidade do Estado de Santa Catarina, 2012. http://tede.udesc.br/handle/handle/1622.

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Made available in DSpace on 2016-12-08T17:19:17Z (GMT). No. of bitstreams: 1 Anael Krelling.pdf: 4334549 bytes, checksum: 5f6d37933553590fff7bc05b902644dc (MD5) Previous issue date: 2012-06-18<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In this work, solid boriding thermochemical treatment was carried out using Ekabor® 1-V2 and one blend as boriding agents and heat treatment of quenching and tempering of AISI H13 tool steel in order to compare and evaluate the tribological behavior and the properties acquired for four studied conditions, that were: Ekabor® powder boriding, Ekabor® powder boriding followed by quenching and tempering, boriding with a blend as boriding agent and quenched and tempered condition. Sliding wear tests were performed in pin-on-disc apparatus in order to evaluate the friction coefficient and the volume of material removed (measured with the aid of a profiling equipment). After the wear tests the samples were transversally cut for metallographic evaluation by optical and scanning electron microscopy. X-ray diffraction was used to confirm the formation of borided layer. The results showed that the boriding treatments, regardless the boriding agent used, are effective in increasing wear resistance. The thickness of borided layer was greater for boriding with Ekabor® powder than the blend agent, this one, nevertheless, showed significant improvement in wear resistance compared to the quenched and tempered condition. There are several wear mechanisms that take place in the sliding wear test but the adhesive wear mechanism was reduced by boriding treatment.<br>Neste trabalho foram realizados tratamentos termoquímicos de boretação por via sólida com pó comercial Ekabor® 1-V2 e mistura boretante, além de tratamentos térmicos de têmpera e revenimento em aço ferramenta AISI H13 com o intuito de comparar e avaliar o comportamento tribológico e as propriedades adquiridas para quatro condições estudadas, sendo elas: boretação com pó Ekabor®, boretação com pó Ekabor® seguida de têmpera e revenimento, boretação com uma mistura como agente boretante e condição apenas temperada e revenida. Testes de desgaste por deslizamento foram realizados em tribômetro de pino-sobre-disco para avaliação do coeficiente de atrito e volume de material removido (avaliado com o auxílio de perfilômetro). Após os ensaios de desgaste as amostras foram cortadas transversalmente para avaliação metalográfica através de microscopia óptica, microscopia eletrônica de varredura e microdureza. Os mecanismos de desgaste foram analisados por microscopia eletrônica de varredura. Difratometria de raios-X foi utilizada para a comprovação da formação da camada de boretos. Os resultados mostraram que o tratamento de boretação, independentemente do agente boretante utilizado, é eficaz no aumento da resistência ao desgaste. A espessura das camadas de boretos foi maior para boretação realizada com pó Ekabor® em comparação com a mistura boretante, esta última, apesar disto, apresentou melhoria significativa em comparação com a condição de têmpera e revenimento. Vários são os mecanismos de desgaste que ocorrem no ensaio por deslizamento sendo que o mecanismo de desgaste por adesão foi reduzido com a realização dos tratamentos de boretação.
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Book chapters on the topic "Solid boriding"

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Xie, Fei, Qiu Hua Zhu, and Jin Jun Lu. "Influence of Direct Current Field on Powder-Pack Boriding." In Solid State Phenomena. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908451-25-6.167.

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Conference papers on the topic "Solid boriding"

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Monisha, K., S. Arun Kumar, M. Gunaseelan, and J. Senthilselvan. "Super-hard coating creation by laser boriding technique." In DAE SOLID STATE PHYSICS SYMPOSIUM 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4980549.

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