Relevant bibliographies by topics / Parameters of cladding

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

Academic literature on the topic 'Parameters of cladding'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Parameters of cladding"

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Lu, Shu Hua, Xiang Ling, and Jin Chun Zhang. "The Influence of Processing Parameters on the Surface Integrity of Ni60A Coatings Fabricated by Laser-High Frequency Induction Hybrid Cladding." Applied Mechanics and Materials 853 (September 2016): 425–30. http://dx.doi.org/10.4028/www.scientific.net/amm.853.425.

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The surface of much equipment that employed in petrochemical industry is always damaged by corrosion. As a novel technology, laser-high frequency induction hybrid cladding is an effective surface modification technology. Processing parameters, such as laser power, laser scanning speed and induction heating temperature, play an important part in the structural integrity of the coatings. The effects of these processing parameters to cladding integrity were investigated in this paper. Nickel base alloy (Ni60A) claddings were fabricated on the surface of low alloy steel by the way of laser-high frequency induction hybrid cladding and coaxial powder feeding. Macroscopic appearance and porosity of the claddings were systematically investigated by optical microscopy. The corrosion resistance of specimens manufactured by the optimum processing parameters is evaluated in 3.5% NaCl solution by electrochemical test. As the change of processing parameters, the width, height and porosity of laser claddings had an obvious change. Optimum processing parameters was determined because of the overall performance of the claddings. A good metallurgical bonding between Ni60A claddings and substrate was shown by microstructure. The results of the polarization curves turned out that the corrosion resistance of the Ni60A cladding is apparently better than the matrix.
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Ji, Xia, Jian Zhong Zhou, Feng Qiu, and Su Qing Jiang. "The Optimization of Processing Parameters and Experimental Investigation on Ni-Based Components Fabricated by Laser Cladding." Key Engineering Materials 407-408 (February 2009): 676–79. http://dx.doi.org/10.4028/www.scientific.net/kem.407-408.676.

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The optimization of processing parameters for laser cladding process based on Statistical Analysis System (SAS) software was investigated and the experimental investigation on Ni-based alloy components fabricated by laser cladding was carried out. The influences of the main processing parameters on the surface quality were analyzed, and the Ni-based components with superior surface quality were obtained by employing the optimum set of parameters. The surface morphology and microstructure of the components were analyzed. Results indicate that the surface of the cladding is rather smooth and the claddings have a unique microstructure consisting of primary dendrite. The laser cladding layer with integrated melt interface and without reheat cracking can be obtained by optimizing the process variables. The investigations show that the components fabricated by laser cladding process have better mechanical properties than that of the conventional manufacturing technology.
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Gao, Zhong Tang, and Min Hua Zhang. "Research on Technological Parameters of Laser Cladding." Applied Mechanics and Materials 117-119 (October 2011): 236–40. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.236.

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Send laser cladding experiments to the substrate surface in 16Mn in the Synchronous way. By different laser cladding parameters on the microstructure and mechanical properties under the comparative analysis, to make a more detailed discussion of laser cladding power and scanning speed on the quality of laser cladding. Different process parameters on the microstructure of cladding layer and the cladding layer of particle distribution and the tissue distribution of species .We get to the study that type and distribution of the cladding layer microstructure and tissue distribution of tungsten carbide hard phase. We get regular pattern that technological parameter has an effect on the quality of cladding layer. We can came to the conclusion that the best cladding process parameters is in the power of 3.0KW and cladding speed 1000mm/min.
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Viňáš, Ján, Miroslav Greš, and Tomáš Vaško. "Cladding of Wear-Resistant Layers in Metallurgy and Engineering." Materials Science Forum 862 (August 2016): 41–48. http://dx.doi.org/10.4028/www.scientific.net/msf.862.41.

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The paper presents the application of weld layers used in renovations of functional surfaces of components that are exposed to several tribodegradation factors in operation of metallurgical and engineering industries. Surfaces of selected components are renovated using arc welding processes, namely: (MMAW) Manual Metal Arc Welding, (SAW) Submerged Arc Welding methods, (GMAW) Gas metal arc welding and (FCAW) Flux cored wire metal arc welding without gas shield. Claddings were made always three-layered directly on the surfaces of renovated components using dedicated cladding machines in operations and laboratory conditions respectively. Their quality was assessed using non-destructive tests, namely (VT) visual testing by STN EN ISO 17637 and (UT) Ultrasonic testing STN EN ISO 11666. Within the destructive tests the quality of claddings was evaluated using the metallographic analysis conducted on a light microscope Olympus BX and electron microscope Jeol where the impact of mixing the weld metal as well as heat treatment after cladding on the final structure of claddings was observed. Using the Shimadzu HMV 2 device the microhardness of cladding layers was evaluated on metallographic samples by STN EN ISO 9015-2. In laboratory conditions the resistance of cladding layers to abrasive wear was verified on the device Di-1. Experimental testing of the claddings confirmed that the selected additives and cladding parameters witting individual technology were chosen correctly as in cladding layers no presence of internal defects was observed.
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Zhang, Yuan Bin, Bai Ying Huang, and Huai Xue Li. "Influence of the Parameters on the Laser Deposited TiAl Layer." Advanced Materials Research 306-307 (August 2011): 496–99. http://dx.doi.org/10.4028/www.scientific.net/amr.306-307.496.

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TiAl based intermetallic compound claddings were produced on TA15 alloy surface by using laser depositing technology to melt Ti-46Al-2Cr metal powders. An interface layer between TA15 substrate and the TiAl claddings was formed. The influence of laser power, scanning speed and number of cladding layers on the interface layer and the hardness of TiAl claddings were investigated. Higher laser power and lower scanning speed made the interface layer thicker. Increasing the laser power and especially the scanning speed could improve the hardness of the TiAl claddings. When the second TiAl layer was deposited, there was no interface layer formed between the two TiAl layers, but the hardness of the first layer decreased and the second TiAl layer was softer than the first layer due to the rough microstructure.
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Zhang, Wei, and Jian Hua Yao. "Research on Technics of Laser Direct Metal Deposition Forming Technology." Advanced Materials Research 69-70 (May 2009): 54–58. http://dx.doi.org/10.4028/www.scientific.net/amr.69-70.54.

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The technological parameters of laser direct metal deposition (DMD) were researched by DMD forming experiments using 2Cr13 powder. Fixing other parameters, the lower of laser power, the smaller the characteristic sizes of cladding layer are. Increasing of laser power, cladding height would firstly increase and then decrease, cladding width would firstly increase and then almost maintain constant, while cladding depth would gradually increase. When other parameters are invariable, with increasing of powder feeding speed, cladding height would increase, cladding width and cladding depth would decrease. When other parameters are invariable, cladding width, cladding height and cladding depth would decrease with the adding of scanning speed. The microstructure of single track cladding had three typical patterns, cellular dendritic, column dendritic and equiaxed crystal. The patterns depended on the temperature gradient and the solidification velocity. Under different technical parameters, the average hardness of specimens would change from 300HV0.2 to 550HV0.2.
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Wang, Li Mei, Jun Bo Liu, and Jun Hai Liu. "Influence of Process Parameters on Microstructure of Reaction Plasma Cladding TiC-Fe-Cr Coating." Materials Science Forum 1027 (April 2021): 170–76. http://dx.doi.org/10.4028/www.scientific.net/msf.1027.170.

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In order to improve the quality and properties of the coating, a certain amount of Ti was added to the plasma cladding Fe-Cr-C coating in the early stage. And Fe-Cr-C-Ti composite powder was prepared by precursor carbonization-composition process. In situ synthesized TiC-Fe-Cr coatings were fabricated on substrate of Q235 steel by plasma cladding process with Fe-Cr-C-Ti composite powder. Microstructure of the coating with different process parameters, including cladding current, cladding speed, number of overlapping cladding layers, were analyzed by scanning electron microscope (SEM). The results show that the structure of the TiC-Fe-Cr coating is greatly affected by the fusion current, the cladding speed and the overlapping cladding process. In this test, when the cladding current of 300A and the cladding process parameter of the cladding speed of 50 mm/min are clad with three layers, a well-formed and well-structured TiC-Fe-Cr coating can be obtained. Which are the best synthetic process parameters in this test.
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Palani, P. K., and N. Murugan. "Modelling and analysis of delta ferrite content in claddings deposited by flux cored arc welding using a neural network." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 223, no. 4 (January 23, 2009): 779–87. http://dx.doi.org/10.1243/09544062jmes1253.

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Measurement of delta ferrite in cladding gives important insight into the future mechanical and corrosion resistant behaviour of the cladded structures. The amount of delta ferrite formed during cladding is influenced by process parameters such as welding speed, welding current, and nozzle-to-plate distance. Therefore, it is essential to predict the effect of these parameters on the formation of delta ferrite. This article discusses the development of an artificial neural network model to predict the delta ferrite content in austenitic stainless-steel claddings deposited by the flux cored arc welding process. A novel approach of using the design of experiments to collect data to train the network has been adopted in this investigation. The study revealed that the delta ferrite content can be predicted more accurately using the neural networks with a minimum number of experiments. The results also indicated that welding current and speed have a significant influence on the amount of ferrite and the interaction effects of these parameters play a major role in determining ferrite in the claddings.
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Lian, Guofu, Hao Zhang, Yang Zhang, Martin L. Tanaka, Changrong Chen, and Jibin Jiang. "Optimizing Processing Parameters for Multi-Track Laser Cladding Utilizing Multi-Response Grey Relational Analysis." Coatings 9, no. 6 (May 31, 2019): 356. http://dx.doi.org/10.3390/coatings9060356.

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Multi-track laser cladding is the primary technology used in industrial applications for surface reinforcement and remanufacturing of broken parts. In this study, the influence of processing parameters on multi-track laser cladding was investigated using a Taguchi orthogonal experimental design. A multi-response grey relational analysis (GRA) was employed to identify laser cladding processing parameters that simultaneously optimize the flatness ratio of the coating and the cladding efficiency. The optimal parameters setting found by GRA were validated experimentally. Results showed that the flatness ratio and cladding efficiency were closely correlated to the overlap rate and laser power, where the overlap rate shows the most significant impact on the flatness ratio and the laser power shows the most significant impact on cladding efficiency. Results from the validation experiment were within one percent (0.97% error) of the predicted value. This demonstrates the benefits of utilizing GRA in laser cladding process optimization. The methods presented in this paper can be used to identify ideal processing parameters for multi-response multi-track laser cladding processes or other industrial applications.
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He, Chang Lin, Gong Zhang, Ying Ping Wang, Lei Zheng, Xian Shuai Chen, Shao Ke Chen, Zhong He Zhou, and Wei Feng. "Effect of the Process Parameters of Laser Cladding on Microstructure of Ni-Based Titanium Carbide." Applied Mechanics and Materials 483 (December 2013): 28–33. http://dx.doi.org/10.4028/www.scientific.net/amm.483.28.

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This paper gets a further study to cladding of Ni-based Titanium Carbide in the surface of die steel of 718, This paper introduces the effect of laser process parameters on the titanium carbide and nickel solid solution and cemented carbide in cladding layer; on that basis, this paper studied the effect of the different of powder paving thickness, laser power and scanning velocity and other parameters on microstructure and properties of cladding layer. By controlling the powder-bed depth, using suitable laser cladding power and scanning speed, we can get the cladding layer of compact structure, no holes or no cracks. Experiments were carried out to get suitable process parameters, and analyzed its mechanism. It has certain significance guiding to improve the laser cladding of 718 die steel quality,
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Dissertations / Theses on the topic "Parameters of cladding"

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Segeťa, Petr. "Studium vlastností vrstvy uhlíkaté oceli navařené vysokovýkonným polovodičovým laserem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231513.

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The aim of my thesis is the analysis of properties of laser cladding. The theoretical part is focus on conventional methods of laser cladding, types and properties of lasers and its applications in industry. Then there is the description of preparing metallographic samples and its assessment, also there are types of wear enclosed. In the experimental part the nickel laser cladding were made by using semiconductor laser, in which the structure, the dilution, the EDS analysis and the hardness with respect to input parameters are assessed.
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Hrádek, Jan. "Procesní parametry při navařování Inconelu 625." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443210.

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The research is focused on cladding of inconel 625 using the MAG - CMT method. It was found that welding without an oscillation does not create the necessary geometry to establish additional layers. When welding with an oscillation, it was researched that the current between 150 and 200 A appears most appropriate in the synergistic mode for welding inconel 625. The resulting weld bead was made at a current of 190 A with pulse dynamics correction set to -4 and correction of arc length to +10 and welding speed of 315 mm per minute.The weld bead was not ideal mainly due to insufficient height. The improvement of results could be achieved by set oscilation with fluent change in acceleration. Because of the time options and difficulty of programming it was used only constant speed for all experiments.
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Babu, Sailesh. "A material based approach to creating wear resistant surfaces for hot forging." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1101836555.

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Thesis (Ph. D.)--Ohio State University, 2004.
Title from first page of PDF file. Document formatted into pages; contains xxii, 185 p.; also includes graphics (some col.). Includes bibliographical references (p. 178-185).
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Corpace, Fabien. "Soudage par résistance du gainage combustible ODS d'un réacteur nucléaire de 4ème génération." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2011. http://tel.archives-ouvertes.fr/tel-00786263.

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Les alliages ODS (Oxide Dispersion Strengthened) sont des matériaux candidats pour la réalisation du gainage combustible des réacteurs nucléaires de Génération IV de type RNR-Na. Leurs propriétés mécaniques à haute température sont assurées par une dispersion d'oxydes nanométriques qui peut être modifiée sous l'effet de la température et notamment lors du passage par l'état liquide. Les procédés d'assemblage en phase solide sont donc préconisés. La méthode de soudage étudiée dans cette thèse est le soudage par résistance en bout. Une double approche simulation numérique-expérimentation a été mise en place pour étudier l'influence des paramètres opératoires sur le soudage et la soudure. L'ensemble des essais (expérimentaux et numériques) est réalisé selon la méthode des plans d'expériences factoriels complets. Un alliage ODS base fer à 20 % de chrome a été utilisé comme alliage d'essai.L'analyse de l'influence des paramètres opératoires sur le soudage est réalisée dans un premier temps. Les résultats montrent que l'étape de soudage peut se découper en trois phases. Dans une première phase, la température augmente au niveau des interfaces. Dans une seconde phase, le procédé de soudage est gouverné par le changement de section macroscopique lorsque le courant passe du bouchon massif à la gaine plus étroite. La température augmente alors dans la partie de gaine dépassant de l'électrode. Lorsque la température atteint une valeur suffisamment élevée, la partie de gaine dépassant de l'électrode se déforme, entrainant un affaissement général des pièces et constituant la troisième phase de l'étape de soudage. L'influence des paramètres opératoires sur les phénomènes physiques lors de l'opération d'assemblage est évaluée. Il est alors possible d'influer sur les sollicitations thermiques et mécaniques à l'aide des paramètres opératoires. L'analyse de l'influence des sollicitations thermomécaniques sur la soudure est réalisée dans un second temps. Sur les plages de paramètres opératoires étudiées, les résultats révèlent sur certaines soudures la présence de défauts de compacité ainsi qu'une modification de la microstructure et de la dispersion des oxydes. Les défauts de compacité peuvent être liés à des phénomènes thermiques et mécaniques au contact entre pièces. Les modifications de la microstructure sont liées à des phénomènes de recristallisation dynamique ou de fusion locale et donc à des phénomènes thermiques mais aussi mécaniques avec la présence de déformations importantes. Les modifications de la microstructure sont alors reliées à une modification de la dispersion d'oxydes. A l'aide des paramètres opératoires il est possible d'influer sur les températures et les déformations afin de limiter les modifications de la structure de l'alliage ODS ainsi que l'apparition de défaut de compacité. A l'aide de l'ensemble de ces résultats, la procédure de soudage est adaptée sur un alliage ODS à 9 % de chrome, nuance envisagée pour la réalisation des futurs gainages combustibles. L'influence des propriétés matériaux sur le soudage et la soudure est alors discutée en comparant les deux nuances ODS de compositions différentes mais aussi en comparant les résultats obtenus sur l'alliage ODS à 20 % de chrome avec un alliage non renforcé de composition semblable.
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Macdonald, Vincent. "Détermination d’un critère de rupture des gaines de Zircaloy-4 détendu hydruré contenant un blister d’hydrures, en conditions d’accident d’injection de réactivité." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLEM038/document.

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Cette étude porte sur la détermination d’un critère de rupture des gaines de combustible de Zircaloy-4 détendu hydruré contenant un blister d’hydrures, en conditions accidentelles représentatives d’un accident d’injection de réactivité. Deux plages de comportement différentes en fonction de la température ont clairement été mises en évidence grâce à l’étude bibliographique, aux différentes campagnes d’essais mécaniques et aux analyses des faciès de rupture des éprouvettes rompues : une rupture de type fragile pour la gaine à 25°C et une rupture ductile à 350°C.A 25°C, la rupture fragile a été traitée par une analyse globale en mécanique élasto-plastique de la rupture. A partir des essais mécaniques effectués à 25°C sur les gaines contenant des blisters, des simulations numériques par éléments finis ont été réalisées avec le code CAST3M. Des calculs d’intégrales-J en pointe de fissure ont alors permis d’identifier un critère de rupture en ténacité moyenne de 13,8 +/- 3,1 MPa.m1/2.A 350°C, une campagne d’essais biaxés de type pression interne couplée à la traction axiale a été réalisée sur des tronçons de Zircaloy-4 contenant des blisters, à des biaxialités des contraintes représentatives du RIA. Il a été montré que la rupture de la gaine, avec et sans blister, avait lieu de façon ductile, que la déformation diamétrale à rupture de la gaine diminuait lorsque la profondeur de blister augmentait, et que la biaxialité des contraintes n’avait pas d’effet sur la rupture des gaines contenant un blister suffisamment profond.Un modèle d’endommagement ductile couplé à la plasticité, basé sur un formalisme de type GTN, a été utilisé. Afin d’améliorer la description de l’endommagement des gaines de Zircaloy-4, une nouvelle source de germination de porosités liée au paramètre de Lode a été intégrée dans le modèle. L’évaluation de la triaxialité des contraintes et du paramètre de Lode dans les simulations numériques de la rupture ductile des gaines à 350°C a notamment permis de comprendre certaines tendances expérimentales
This study deals with the determination of a fracture criterion for hydrided, cold worked and stress relieved Zircaloy-4 fuel cladding tubes with hydride blister, during a reactivity initiated accident. Two types of fracture profiles were identified, depending on the temperature, thanks to a bibliographical study, mechanical tests and fracture profiles analysis : brittle fracture at 25°C, and ductile fracture at 350°C.At 25°C, brittle fracture was studied by a global analysis in elasto-plastic fracture mechanic. Numerical simulations were performed by a finite element method with the CAST3M code, based on mechanical tests on fuel cladding tubes with blisters. Crack tip J-integral calculations were carried out to identify a mean fracture toughness of 13,8 +/- 3,1 MPa.m1/2.At 350°C, internal pressure combined to axial tensile tests were performed on Zircaloy-4 fuel cladding tubes with hydride blisters, at stress biaxialities corresponding to those of a RIA. It was observed a ductile fracture for tubes with and without blister. It was shown that hoop strain at failure decreases when blister thickness increases, and that stress biaxiality has no effect on cladding tubes bearing a thick blister. A ductile fracture model based on the GTN model was employed and a nucleation of voids due to shear stress was introduced, based on the Lode parameter. Stress triaxiality and Lode parameter were assessed in numerical simulations to understand some experimental observations
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Book chapters on the topic "Parameters of cladding"

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Li, Cheng, Yanle Li, Xiaoxia Qi, Jiyu Du, and Fangyi Li. "Parameters Optimization for Laser Cladding Fe55 Alloy on 40Cr Steel." In Lecture Notes in Mechanical Engineering, 129–33. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5763-4_28.

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Yi, Feng, Xuefeng Liu, and Yue Pan. "Effect of Process Parameters on the Interface Microstructure and Thickness of Silver Cladding Copper Wires Prepared by Core-Cladding Continuous Casting." In Lecture Notes in Mechanical Engineering, 201–15. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0107-0_20.

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Colaço, R., L. Costa, R. Guerra, and R. Vilar. "A Simple Correlation Between the Geometry of Laser Cladding Tracks and the Process Parameters." In Laser Processing: Surface Treatment and Film Deposition, 421–29. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0197-1_21.

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Yi, Feng, Xuefeng Liu, and Yue Pan. "Erratum to: Effect of Process Parameters on the Interface Microstructure and Thickness of Silver Cladding Copper Wires Prepared by Core-Cladding Continuous Casting." In Lecture Notes in Mechanical Engineering, E1. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0107-0_124.

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Martin Vinoth, S., P. Dinesh Babu, P. Marimuthu, and Sandesh S. Phalke. "Laser Cladding of Nickel Powder on AISI 202 Stainless Steel and Optimization of the Process Parameters." In Lecture Notes in Mechanical Engineering, 197–203. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1724-8_19.

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Joseph, G. Britto, T. N. Valarmathi, G. Mageshwaran, Jeya Jeevahan, V. Sriram, and R. B. Durai Raj. "Studies on the Influence of Welding Parameters in Cladding of ERNiCrMo-10 on AISI 4140 Using GMAW Process." In Lecture Notes in Mechanical Engineering, 615–21. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6374-0_67.

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Ibrahim, Mahmoud Z., Ahmed A. D. Sarhan, M. O. Shaikh, T. Y. Kuo, Farazila Yusuf, and M. Hamdi. "Investigate the Effects of the Laser Cladding Parameters on the Microstructure, Phases Formation, Mechanical and Corrosion Properties of Metallic Glasses Coatings for Biomedical Implant Application." In Additive Manufacturing of Emerging Materials, 299–323. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91713-9_10.

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Karmakar, Ranit, and Subrata Kumar Ghosh. "Effect of Composition and Process Parameter on Mechanical Properties of Composite Coating by Laser Cladding: An Overview." In Lecture Notes in Mechanical Engineering, 387–95. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1124-0_33.

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"Petroleum Reactor Pressure-Vessel Materials for Hydrogen Service." In Damage Mechanisms and Life Assessment of High-Temperature Components, 329–82. ASM International, 1989. http://dx.doi.org/10.31399/asm.tb.dmlahtc.t60490329.

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Abstract This chapter covers the failure modes and mechanisms of concern in hydroprocessing reactor vessels and the methods used to assess lifetime and performance. It begins with a review of the materials used in the construction of pressure-vessel shells, the challenges they face, and the factors that determine shell integrity. The discussion addresses key properties and design parameters including allowable stress, fracture toughness, the effect of microstructure and composition on embrittlement, high-temperature creep, and subcritical crack growth. The chapter also provides information on the factors that affect cladding integrity and ends with a section on life-assessment techniques.
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Lucian Toma, Stefan, Radu Armand Haraga, Daniela Lucia Chicet, Viorel Paleu, and Costica Bejinariu. "Hard Alloys with High Content of WC and TiC—Deposited by Arc Spraying Process." In Welding - Modern Topics [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.94605.

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Obtained by different spraying technologies: in atmospheric plasma spray, High Velocity Oxygen Fuel (HVOF) or laser cladding, the layers of hard alloys with a high content of WC and TiC find their industrial applications due to their high hardness and resistance to wear. Recognized as being a process associated with welding, the arc spraying process is a method applied industrially both in obtaining new surfaces and for reconditioning worn ones. This chapter presents the technology for obtaining ultra-hard layers based on WC and TiC - by the arc spraying process, using a classic spray device equipped with a conical nozzle system and tubular wire additional material containing ultra-hard compounds (WC, TiC). To study both the quality of deposits and the influence of thermal spray process parameters on the properties of deposits with WC and TiC content, we approached various investigative techniques, such as optical scanning microscopy (SEM), X-ray diffraction, and determination of adhesion, porosity, Vickers micro-hardness and wear resistance.
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Conference papers on the topic "Parameters of cladding"

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Vetter, P. A., Thierry Engel, and Joel Fontaine. "Laser cladding: the relevant parameters for process control." In Europto High Power Lasers and Laser Applications V, edited by Eckhard Beyer, Maichi Cantello, Aldo V. La Rocca, Lucien D. Laude, Flemming O. Olsen, and Gerd Sepold. SPIE, 1994. http://dx.doi.org/10.1117/12.184751.

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Nurminen, Janne, Jonne Näkki, and Petri Vuoristo. "The influence of powder parameters on laser cladding process." In ICALEO® 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2004. http://dx.doi.org/10.2351/1.5060359.

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"Effect of Laser Cladding Process Parameters on the Quality of Cladding Layer in 35CrMoV Piston Rod." In 2018 9th International Conference on Civil Engineering, Materials and Machinery. Francis Academic Press, 2018. http://dx.doi.org/10.25236/iccemm.2018.016.

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Lu, Shuhua, Xiang Ling, and Jinchun Zhang. "Investigation of Preparation Processes and Corrosion Resistance of NiCrBSi Coatings Fabricated by Laser-High Frequency Induction Hybrid Cladding." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63109.

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The surface of many key components used in petrochemical industry may be damaged by corrosion, wear and overheat during service. This damage can make a significant impact on the safe and reliable operation process of the device. Low alloy steel is widely used to manufacture pressure vessels and pipes because of the higher strength and good processing properties, but has poor corrosion resistance and wear resistance. Laser cladding is an advanced and effective surface modification technology. It can improve the surface properties of the matrix material at lower cost. But these claddings crack easily due to the high temperature gradient in the laser molten pool and physical properties differences between the cladding material and matrix. This problem has affected the development of laser cladding. Laser-high frequency induction hybrid cladding is a novel technology which combines laser beam heat source and induction power. It can decrease the cracks in the claddings effectively and has been received significant attentions in recent years. Nickel base alloy powders have good corrosion resistance, wettability and high temperature lubricity. In this research, NiCrBSi composite claddings were fabricated on the surface of low alloy steel by the way of laser-high frequency induction hybrid cladding and coaxial powder feeding. The optimum cladding technology parameters to obtain the cladding layers that with good metallurgical combination, reasonable dilution rate and without cracks and defects were developed by optimizing the processing parameters such as laser power, powder feeding rate, laser scanning speed and induction heating temperature. The hardness distribution, microstructure, element distribution and phase of the cladding layers fabricated by the optimum parameters were systematically investigated by means of micro-hardness tester, optical microscopy (OM). Compared with the untreated material, experiment results show that the micro-hardness from substrate to NiCrBSi cladding layer exhibits step distribution, and the hardness of the NiCrBSi cladding layer is higher than that of the base metal. The microstructure showed good metallurgical bonding between NiCrBSi cladding and substrate had been achieved. In addition, directionally solidified microstructures were deposited. From the top to bottom of the cladding layer, the microstructures are, in order, equiaxed crystal, dendrite crystal, cellular crystal, columnar crystal and plane crystals. The corrosion resistance of the base metal and specimens manufactured by laser-high frequency induction hybrid cladding were evaluated in 3.5% NaCl solution by electrochemical testing. The experimental results demonstrate that the corrosion resistance of the NiCrBSi cladding layer fabricated by laser-high frequency induction hybrid cladding technology is better than the base metal.
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Santhanakrishnan, Soundarapandian, Fanrong Kong, and Radovan Kovacevic. "Process parameters analysis of high power direct diode laser cladding." In ICALEO® 2010: 29th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2010. http://dx.doi.org/10.2351/1.5062056.

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Zheng, Xiong, Zhang Qiao-bin, and Zeng Xiao-yan. "Effects of Process Parameters of Laser Cladding on the Deformation." In 2011 International Conference on Intelligent Computation Technology and Automation (ICICTA). IEEE, 2011. http://dx.doi.org/10.1109/icicta.2011.558.

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Jendrzejewski, Rafal, Gerard Sliwinski, Ana Conde, Carmen Navas, and Juan J. de Damborenea. "Direct laser cladding of stellite coatings and selection of process parameters." In Prague -- 2004 DL over. SPIE, 2005. http://dx.doi.org/10.1117/12.611281.

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Yang, Nan, and Xichen Yang. "Powder flow field distribution with different parameters in coaxial laser cladding." In Photonics Asia 2007, edited by ShuShen Deng, Akira Matsunawa, and Xiao Zhu. SPIE, 2007. http://dx.doi.org/10.1117/12.765634.

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Chenggang Pan, Huachang Wang, and Jialin Zhou. "Effects of processing parameters on microstructure and performance of plasma cladding coatings." In 2010 International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2010. http://dx.doi.org/10.1109/mace.2010.5535320.

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Ratkus, Andris, and Toms Torims. "Mathematical Model of the Influence of Process Parameters on Geometrical Values and Shape in MIG/MAG Multi-Track Cladding." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37479.

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The cladding process in the present case contributes to a repair technology, in which a new layer of material is created by using Metal Inert Gas/Metal Active Gas technology on inner cylindrical surfaces, e.g. bucket bores or hydro cylinders. The cladded layer is subsequently subjected to mechanical processing. Although cladding technology itself is well known, its results are hardly ever predicted with regard to inner surface renewal. In this paper, we explore the influence of cladding technological process parameters on geometrical values: the thickness, cross-section areas and shape of the newly cladded layer are established. Current research provided significant information which enabled mathematical models to be developed for inner surface cladding. Polynomial regression was used to create a mathematical model, where coefficients established with the SYSTAT software and their adequacy was checked using the analysis of variance technique. Thus an equation was obtained to help identify the effects of parameters on the final result. The most significant factor identified in cladding geometry is the amount of material that is supplied to the melting pool, followed by the process speed and heat input. The obtained coefficient describing the amount of material is presented, together with equations for calculating minimal thickness, efficient thickness and the multi-track cladding shape.
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