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Effect of Selective Laser Melting Process Parameters on Microstructure and Properties of Co-Cr Alloy.


ABSTRACT: Due to the rapid melting and solidification mechanisms involved in selective laser melting (SLM), CoCrMo alloys fabricated by SLM differ from the cast form of the same alloy. In this study, the relationship between process parameters and the morphology and macromechanical properties of cobalt-chromium alloy micro-melting pools is discussed. By measuring the width and depth of the molten pool, a theoretical model of the molten pool is established, and the relationship between the laser power, the scanning speed, the scanning line spacing, and the morphology of the molten pool is determined. At the same time, this study discusses the relationship between laser energy and molding rate. Based on the above research, the optimal process for the laser melting of cobalt-chromium alloy in the selected area is obtained. These results will contribute to the development of biomedical CoCr alloys manufactured by SLM.

SUBMITTER: Wang JH 

PROVIDER: S-EPMC6164890 | biostudies-other | 2018 Aug

REPOSITORIES: biostudies-other

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Effect of Selective Laser Melting Process Parameters on Microstructure and Properties of Co-Cr Alloy.

Wang Jian-Hong JH   Ren Jie J   Liu Wei W   Wu Xiao-Yu XY   Gao Ming-Xiang MX   Bai Pei-Kang PK  

Materials (Basel, Switzerland) 20180827 9


Due to the rapid melting and solidification mechanisms involved in selective laser melting (SLM), CoCrMo alloys fabricated by SLM differ from the cast form of the same alloy. In this study, the relationship between process parameters and the morphology and macromechanical properties of cobalt-chromium alloy micro-melting pools is discussed. By measuring the width and depth of the molten pool, a theoretical model of the molten pool is established, and the relationship between the laser power, the  ...[more]

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