Process study and characterization of properties of FerCrNiMnCo high-entropy alloys fabricated by laser-aided additive manufacturing

Guijun Bi; Youxiang Chew; Fei Weng; Zhiguang Zhu; Fern Lan Ng; Bing Yang Lee

doi:10.1117/12.2502272

12 November 2018 Process study and characterization of properties of FerCrNiMnCo high-entropy alloys fabricated by laser-aided additive manufacturing

Guijun Bi, Youxiang Chew, Fei Weng, Zhiguang Zhu , Fern Lan Ng, Bing Yang Lee

Author Affiliations +

Proceedings Volume 10813, Advanced Laser Processing and Manufacturing II; 108130V (2018) https://doi.org/10.1117/12.2502272
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

Laser aided additive manufacturing (LAAM) was used to prepare FeCrNiMnCo high entropy alloy (HEA) with pre-alloyed powders. The microstructure and properties of the HEA were investigated intensively, especially the cryogenic mechanical properties. The microstructure of the as deposited specimen was dense and occupied by cellular and dendrite grains. The tensile strength and yield strength increased with temperature decreasing from 25°C to -130 °C, yet the impact toughness decreased. The deformation mechanism of the HEA under low temperature was discussed accordingly.

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Guijun Bi, Youxiang Chew, Fei Weng, Zhiguang Zhu , Fern Lan Ng, and Bing Yang Lee "Process study and characterization of properties of FerCrNiMnCo high-entropy alloys fabricated by laser-aided additive manufacturing", Proc. SPIE 10813, Advanced Laser Processing and Manufacturing II, 108130V (12 November 2018); https://doi.org/10.1117/12.2502272

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