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Relevant bibliographies by topics / Laser Surface Alloying

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Academic literature on the topic 'Laser Surface Alloying'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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Journal articles on the topic "Laser Surface Alloying"

1

Draper, C. W., and J. M. Poate. "Laser surface alloying." International Materials Reviews 30, no. 1 (January 1985): 85–108. http://dx.doi.org/10.1179/imr.1985.30.1.85.

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Draper, C. W., and J. M. Poate. "Laser surface alloying." International Metals Reviews 30, no. 1 (January 1985): 85–108. http://dx.doi.org/10.1179/imtr.1985.30.1.85.

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Almeida, A., and R. Vilar. "Laser surface alloying of aluminium-transition metal alloys." Revista de Metalurgia 34, no. 2 (April 30, 1998): 114–19. http://dx.doi.org/10.3989/revmetalm.1998.v34.i2.672.

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Shelyagin, V. D., L. I. Markashova, V. Yu Khaskin, A. V. Bernatsky, and O. S. Kushnaryova. "Laser and laser-microplasma alloying of surface of 38KhN3MFA steel specimens." Paton Welding Journal 2014, no. 2 (February 28, 2014): 24–30. http://dx.doi.org/10.15407/tpwj2014.02.03.

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Brytan, Zbigniew, and Wojciech Pakieła. "Laser Surface Treatment of Sintered Stainless Steels for Wear Resistance Enhancement." Key Engineering Materials 813 (July 2019): 221–27. http://dx.doi.org/10.4028/www.scientific.net/kem.813.221.

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In the present study, sintered austenitic stainless steel type 316L was laser surface alloyed with Inconel 625 powder by the fibre optic laser. The Inconel 625 spheroidal powder of grain size 60-150 μm was introduced by the coaxial feeding head directly to the liquid metal, during laser surface alloying. The process parameters were selected to melt and fully dissolve alloying powder into the alloyed surface. As a result of laser alloying, the porosity of sintered stainless steel was eliminated, a uniform distribution of nickel and molybdenum in the entire alloyed zone was obtained. The alloyed surface shows fully austenitic microstructure of 17%Cr, 18%Ni, 3%Mo. The superficial hardness, microhardness and surface wear resistance were significantly improved in respect to an untreated substrate material. The presented technique of laser surface alloying can be easily applied for sintered austenitic stainless steel components where selected component surfaces require an improved surface performance.

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McCay, M. H., C. M. Sharp, J. A. Hopkins, B. Szapiro, and T. D. McCay. "Plasma assisted laser surface alloying." Journal of Laser Applications 15, no. 2 (May 2003): 84–88. http://dx.doi.org/10.2351/1.1536644.

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Kisina, Yu B., A. D. Barsukov, and I. R. Shlyapina. "Laser surface alloying of silumin." Metal Science and Heat Treatment 37, no. 2 (February 1995): 59–61. http://dx.doi.org/10.1007/bf01157045.

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Draper, C. W. "Laser surface alloying of gold." Gold Bulletin 19, no. 1 (March 1986): 8–14. http://dx.doi.org/10.1007/bf03214638.

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Kotarska, Aleksandra. "The Laser Alloying Process of Ductile Cast Iron Surface with Titanium." Metals 11, no. 2 (February 6, 2021): 282. http://dx.doi.org/10.3390/met11020282.

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The article presents the results of the laser alloying process of ductile cast iron EN-GJS 350-22 surface with titanium. The laser alloying process was conducted on 2 kW high power diode laser (HPDDL) Rofin Sinar DL02 with rectangular focus and uniform power density distribution in the focus axis. The laser alloying was conducted with constant laser beam power and processing speed with titanium powder feed rate variation. The tests of the produced surface layers included macrostructure and microstructure observations, X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis, Vickers hardness, and solid particle erosion according to ASTM G76-04 standard. To assess the erosion mechanism, SEM observations of worn surfaces after erosive test were carried out. As a result of laser alloying of a ductile cast iron surface, the in situ metal-matrix composite structure was formed with TiC reinforcing particles. The microstructure change resulted in the increase of surface layers hardness and erosion resistance in comparison to the base material.

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Radziejewska, J. "Surface Layer Morphology Due to Laser Alloying Process." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 220, no. 3 (March 1, 2006): 447–54. http://dx.doi.org/10.1243/095440505x32931.

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The results of experimental research on the influence of laser alloying parameters on the structure and chemical composition are presented. The alloying process was performed with a continuous CO2 laser, of a 2.5 kW power, at different densities of energy and different interaction times of beam on material. The experiments were done on carbon steel, which was alloyed with powders of tungsten carbide and cobalt stellite. The microstructure, the distribution of alloyed elements, and the microhardness of the surface layer were studied after a laser alloying process. It was shown that alloying layer morphology depends on the laser alloying parameters, especially on interaction time. The research has verified that the motion process of liquid material determines the alloyed layer morphology and indicates a necessity to take into account the convection process.

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Dissertations / Theses on the topic "Laser Surface Alloying"

1

Bransden, Antony Stuart. "Laser surface alloying of aluminium alloys." Thesis, Coventry University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241106.

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Marsden, Charles F. "Laser surface alloying of stainless steel." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47176.

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Folkes, Janet Ann. "Laser surface melting and alloying of titanium alloys." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38315.

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Chen, Zhen-da. "Laser surface melting and alloying of cast irons." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38260.

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Mohan, Raj P. "Transport Phenomena In Laser Surface Alloying: A Numerical Investigation." Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/235.

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A comprehensive, transient three-dimensional model of a single-pass laser surface alloying process has been developed and used to examine the heat, momentum and species transport phenomena. A numerical study is performed in a co-ordinate system moving with the laser at a constant scanning speed. In this model a fixed grid enthalpy-porosity approach is used, which predicts the evolutionary pool development. In this model two extreme cases of alloying element and base metal combinations are considered based on their relative melting points. One extreme case is for an alloying element with its melting point much lower than that of the base metal. In this case the alloying element melts almost instantaneously. Hence it is assumed that the alloying element introduced on the melt pool surface is in the molten state. Thus, while solving the species conservation equation a species flux condition is used on the entire melt pool surface. This case is analysed for aluminium alloying element on iron base metal. The final species distribution in the melt pool as well as in the solidified alloy is predicted. The other extreme case is studied for an alloying element with its melting point relatively higher than that of the base metal. In this case all the alloying element particles on the melt pool surface will not melt. Only those particles which fall in the region on the melt pool surface where the local temperature is higher than the melting point of the alloying element will melt. The particles which fall away from this region are advected into the melt pool, due to a strong Marangoni convection on the melt pool surface. If a particle is advected into the inner region in the melt pool (where the temperature is higher than its melting point), it starts melting and thus the molten species mass gets distributed. Hence, the species flux condition at the entire surface of the melt pool is not valid. The particles are tracked in the melt pool by assuming the alloying particles to be spherical in shape and moving without any relative velocity with the surrounding fluid. Simultaneously, the temperature field inside the spherical particle is solved by assuming its surface temperature to be the local temperature in the melt pool. The amount of particle mass that fuses as it passes through a particular control volume is noted. The same procedure is repeated for a large number of particles initiated at various locations on the pool surface, and a statistical distribution of the species mass source in the entire pool is obtained. This species mass source distribution is then used to solve the species conservation equation. Nickel alloying element on aluminium base metal is used to illustrate this case. The numerical results obtained from the two cases are compared with the available experimental results. A qualitative matching is found between the numerical and experimental results.

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Mohan, Raj P. "Transport Phenomena In Laser Surface Alloying: A Numerical Investigation." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/235.

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A comprehensive, transient three-dimensional model of a single-pass laser surface alloying process has been developed and used to examine the heat, momentum and species transport phenomena. A numerical study is performed in a co-ordinate system moving with the laser at a constant scanning speed. In this model a fixed grid enthalpy-porosity approach is used, which predicts the evolutionary pool development. In this model two extreme cases of alloying element and base metal combinations are considered based on their relative melting points. One extreme case is for an alloying element with its melting point much lower than that of the base metal. In this case the alloying element melts almost instantaneously. Hence it is assumed that the alloying element introduced on the melt pool surface is in the molten state. Thus, while solving the species conservation equation a species flux condition is used on the entire melt pool surface. This case is analysed for aluminium alloying element on iron base metal. The final species distribution in the melt pool as well as in the solidified alloy is predicted. The other extreme case is studied for an alloying element with its melting point relatively higher than that of the base metal. In this case all the alloying element particles on the melt pool surface will not melt. Only those particles which fall in the region on the melt pool surface where the local temperature is higher than the melting point of the alloying element will melt. The particles which fall away from this region are advected into the melt pool, due to a strong Marangoni convection on the melt pool surface. If a particle is advected into the inner region in the melt pool (where the temperature is higher than its melting point), it starts melting and thus the molten species mass gets distributed. Hence, the species flux condition at the entire surface of the melt pool is not valid. The particles are tracked in the melt pool by assuming the alloying particles to be spherical in shape and moving without any relative velocity with the surrounding fluid. Simultaneously, the temperature field inside the spherical particle is solved by assuming its surface temperature to be the local temperature in the melt pool. The amount of particle mass that fuses as it passes through a particular control volume is noted. The same procedure is repeated for a large number of particles initiated at various locations on the pool surface, and a statistical distribution of the species mass source in the entire pool is obtained. This species mass source distribution is then used to solve the species conservation equation. Nickel alloying element on aluminium base metal is used to illustrate this case. The numerical results obtained from the two cases are compared with the available experimental results. A qualitative matching is found between the numerical and experimental results.

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Soib, Bin Selamat Mohmad. "Laser surface processing of Ti-6Al-4V alloy." Thesis, University of Strathclyde, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366777.

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Walker, Andrew Meredith. "Laser surface alloying of metallic substrates with carbon and silicon." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/38178.

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Abboud, Jaafar Hadi. "Laser surface alloying of titanium by metallic and non-metallic additions." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/47732.

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Teixeira, Moisés Felipe. "Caracterização de ferramenta de estampagem tratada pelo processo de laser surface alloying." reponame:Repositório Institucional da UFSC, 2015. https://repositorio.ufsc.br/xmlui/handle/123456789/169315.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2015
Made available in DSpace on 2016-10-19T12:41:08Z (GMT). No. of bitstreams: 1 336652.pdf: 5534226 bytes, checksum: 7d337d5771cb9e8f7fcefeb40db37093 (MD5) Previous issue date: 2015
Laser surface alloying (LSA) é uma poderosa técnica de modificação de camada limite de um componente, cada vez mais reconhecida, usada para aumentar a resistência ao desgaste e à corrosão em componentes de engenharia. Neste trabalho, a região próxima a superfície de uma ferramenta de estampagem automotiva (aço ASTM A681), foi tratada com um laser de fibra Nd: YAG contínuo de comprimento de onda de 1064 nm e com pó de adição WC-Cr-Co, na proporção de 86%, 6% e 8%. Este processo consiste basicamente em fundir uma camada próxima a superfície de um substrato, adicionando simultaneamente partículas de um material de adição na forma de um pó pré ligado, modificando a composição química e microestrutura, assim como tamanho de grão de forma localizada da ferramenta, alterando sua dureza e resistência ao desgaste. Para analisar a resistência ao desgaste para este processo, foram feitas mil estampagens em uma ferramenta tratada por LSA e em outra não tratada e seus resultados comparados entre si. A finalidade do processo LSA é a de aumentar o tempo de vida de uma ferramenta em uma aplicação industrial. As análises da ferramenta tratada apresentaram um resultado significativo quando comparada com uma ferramenta sem o tratamento. Obteve-se uma redução cerca de nove vezes na rugosidade superficial e uma maior resistência ao desgaste. Neste trabalho também foi analisada a influência do aumento da potência do laser no processo de laser surface alloying. Para isto cinco diferentes amostras foram tratadas e analisadas quanto a microdureza, composição química, identificação de fases e ensaios de resistência ao desgaste. Os resultados obtidos neste trabalho foram importantes para concluir que este é um processo muito complexo e deve ser rigorosamente controlado, pois diversos fatores alteraram a estrutura e resistência ao desgaste da camada próxima à superfície tratada.

Abstract : Laser Surface Alloying (LSA) is a powerful boundary limit of a component modification technique, increasingly recognized, used to increase the wear and the corrosion of engineering components resistance. In this thesis a near surface region of an automotive deep drawing tool (steel ASTM A681) was treated with a continuous fiber laser Nd: YAG with wavelength of 1064 nm and with WC-Cr-Co particles in ratio of 86%, 6% and 8%. This process consists basically in melting a substrate's layer near of surface adding simultaneously particles of a filler material in a pre-connected powder shape, altering the microstructure, as well as the grain size in localized form of the tool, altering the hardness and wear resistance. To perform a comparative analysis of this process one thousand deep drawings were made in a tool treated by LSA and in an untreated tool. The behavior's characteristics of these tools have been analyzed and their results compared with each other. The purpose of LSA process is to increase the lifetime of a tool in the industrial application. What could be observed after the analysis was the success of this process, because all the characteristics results showed significant improvement when compared with the untreated tool. As example cite a decrease of about nine times the roughness and significantly reducing of the treated tool wear. In this work the influence of the increase in laser power in the laser surface alloying process was analyzed. Five different samples were treated and analyzed, their hardness, chemical composition, phase identification and wear resistance were investigated. The results obtained of this work were important to conclude that LSA is a very complex process and must be strictly controlled, as there are several factors that can change the structure and wear resistance of the surface treated.

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Books on the topic "Laser Surface Alloying"

1

E, Rehn L., Picraux S. T. 1943-, Wiedersich H, and American Society for Metals. Materials Science Division. Seminar Committee., eds. Surface alloying by ion, electron, and laser beams: Papers presented at the 1985 ASM Materials Science Seminar, 12-13 October 1985, Toronto, Ontario, Canada. Metals Park, Ohio: ASM, 1987.

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Poate, J. M. Surface Modification and Alloying: By Laser, Ion, And Electron Beams. Springer, 2013.

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3

Foti, G., J. M. Poate, and D. C. Jacobson. Surface Modification and Alloying: By Laser, Ion, and Electron Beams. Springer London, Limited, 2013.

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Poate, J. M., G. Foti, and D. C. Jacobson. Surface Modification and Alloying: By Laser, Ion, and Electron Beams. Springer, 2014.

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Book chapters on the topic "Laser Surface Alloying"

1

Bonek, Mirosław. "Laser Surface Alloying." In Encyclopedia of Tribology, 1938–48. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-0-387-92897-5_687.

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Mordike, B. L. "Laser Gas Alloying." In Laser Surface Treatment of Metals, 389–412. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4468-8_36.

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Folkes, J., D. R. F. West, and W. M. Steen. "Laser Surface Melting and Alloying of Titanium." In Laser Surface Treatment of Metals, 451–59. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4468-8_39.

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Smurov, I., and M. Ignatiev. "Innovative Intermetallic Compounds by Laser Alloying." In Laser Processing: Surface Treatment and Film Deposition, 267–326. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0197-1_14.

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Marsden, C., D. R. F. West, and W. M. Steen. "Laser Surface Alloying of Stainless Steel with Carbon." In Laser Surface Treatment of Metals, 461–73. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4468-8_40.

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Mazumder, J., and J. Singh. "Laser Surface Alloying and Cladding for Corrosion and Wear." In Laser Surface Treatment of Metals, 297–307. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4468-8_28.

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Gadag, S. P., R. Galun, A. Weisheit, and B. L. Mordike. "Laser Alloying of Copper and its Alloys." In Laser Processing: Surface Treatment and Film Deposition, 359–77. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0197-1_17.

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Zambon, A., E. Ramous, M. Magrini, M. Bianco, and C. Rivela. "Gas Surface Alloying of Ti6A14V Alloy by Laser." In Laser Processing: Surface Treatment and Film Deposition, 327–35. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0197-1_15.

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Kar, A., and J. Mazumder. "Modeling in Laser Materials Processing: Melting, Alloying, Cladding." In Laser Processing: Surface Treatment and Film Deposition, 129–55. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0197-1_7.

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Bitay, Enikö. "Ceramic Particle Dispersion Analysis in LASER Surface Alloying." In Materials Science Forum, 295–300. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-991-1.295.

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Conference papers on the topic "Laser Surface Alloying"

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Klimpel, Andrzej, Aleksander Lisiecki, and Damian Janicki. "Diode laser surface alloying of tool steel with cobalt." In Laser Technology VII: Applications of Lasers, edited by Wieslaw L. Wolinski, Zdzislaw Jankiewicz, and Ryszard Romaniuk. SPIE, 2003. http://dx.doi.org/10.1117/12.520725.

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Hopkins, John A., Martin Murray, Naren Dahotre, and Mary Helen McCay. "Laser surface alloying of aluminum engine bores." In ICALEO® 2000: Proceedings of the Laser Applications in the Automotive Industry Conference. Laser Institute of America, 2000. http://dx.doi.org/10.2351/1.5059528.

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Ariely, S., Menahem Bamberger, Helmut Huegel, and Mark Geller. "Laser surface alloying of steel with TiC." In 8th Meeting in Israel on Optical Engineering, edited by Moshe Oron, Itzhak Shladov, and Yitzhak Weissman. SPIE, 1993. http://dx.doi.org/10.1117/12.151106.

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Liu, Zhu, Kenneth G. Watkins, William M. Steen, and P. G. Hatherley. "Laser surface alloying of coins for authenticity." In Lasers and Optics in Manufacturing III, edited by Leo H. J. F. Beckmann. SPIE, 1997. http://dx.doi.org/10.1117/12.281106.

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Morrow, Justin D., Qinghua Wang, Neil A. Duffie, and Frank E. Pfefferkorn. "A Hybrid Surface Processing Method Using Surface Alloying and Pulsed Laser Micro Melting on S7 Tool Steel." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9446.

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A hybrid surface treatment method is presented on S7 tool steel by alloying the surface layer with boron and following with pulsed laser micro polishing (PLuP). The objective of the hybrid approach is twofold: First, surface alloying changes the properties of the surface layer that are relevant to the PLuP process (e.g. liquid metal density, viscosity, and surface tension). This allows more control over the laser polishing phenomena for better smoothing. Second, surface alloying and laser melting/quenching is proposed as a novel method of creating amorphous surface coatings. In this work, boron was introduced into the surface of an S7 tool steel sample using pack cementation. This sample was then ground on a bias to create a flat surface with a gradient in chemical composition and this surface was laser melted. The effect of this variation in alloy chemistry on the surface features created by pulsed laser melting is presented.

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Xu, Zhiyue, Keng Leong, and Paul Sanders. "Surface alloying of silicon into aluminum substrate." In ICALEO® ‘98: Proceedings of the Laser Materials Processing Conference. Laser Institute of America, 1998. http://dx.doi.org/10.2351/1.5059114.

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Pang, W., H. C. Man, and T. M. Yue. "Laser surface alloying of Mo - WC on titanium alloys." In ICALEO® 2002: 21st International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2002. http://dx.doi.org/10.2351/1.5066182.

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Ejaz, M., R. Prescott, and Z. Liu. "Silicon laser surface alloying for resistance to metal dusting." In ICALEO® 2005: 24th International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2005. http://dx.doi.org/10.2351/1.5060590.

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Chakraborty, Nilanjan, Dipankar Chatterjee, and Suman Chakraborty. "Modelling of Turbulent Transport in Laser Surface Alloying." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-55420.

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In this paper, we present a modified k-ε model capable of addressing turbulent molten metal-pool convection in the presence of a continuously evolving phase-change interface during a laser surface alloying process. The phase change aspects of the present problem are addressed using a modified enthalpy-porosity technique. The k-ε model is suitably modified to account for the morphology of the solid-liquid interface. A mathematical model is subsequently utilized to simulate a typical laser alloying process with high power, where effects of turbulent transport can actually be realized. The three-dimensional model is able to predict the species concentration distribution inside the molten pool during alloying, as well as in the entire cross section of the solidified alloy. In order to investigate these effects, the turbulent simulation results are compared with those with laminar transport for same problem parameters. Significant effects of turbulent transport on penetration and the geometrical features of the molten pool are observed which is an outcome of the thermal history of the pool. The thermal history in turn determines the microstructure of the work piece, which finally governs the mechanical properties of the work piece.

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Hontzopoulos, Elias I., A. Zervaki, G. Zergioti, G. Hourdakis, E. Raptakis, A. Giannacopoulos, and Costas Fotakis. "Excimer laser ceramic and metal surface alloying applications." In SPIE Proceedings, edited by Janis Spigulis, Concepcion M. Domingo, Soon Fatt Yoon, Victor J. Doherty, M. H. Kuok, Jose M. Orza, Andris Krumins, et al. SPIE, 1991. http://dx.doi.org/10.1117/12.25973.

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Reports on the topic "Laser Surface Alloying"

1

R. P. Martukanitz and S. Babu. Development of Advanced Wear and Corrosion Resistant Systems Through Laser Surface Alloying and Materials Simulations. Office of Scientific and Technical Information (OSTI), May 2007. http://dx.doi.org/10.2172/903051.

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