Influence of carbon contents on the cryogenic mechanical properties of precipitation-hardened CrMnFeCoNi high-entropy alloys manufactured by laser powder bed fusion

Kim, Young-Kyun; Lee, Kee-Ahn

doi:10.1016/j.msea.2023.145042

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Influence of carbon contents on the cryogenic mechanical properties of precipitation-hardened CrMnFeCoNi high-entropy alloys manufactured by laser powder bed fusion

Kim, Young-Kyun;
Lee, Kee-Ahn

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초록

The cryogenic mechanical properties of additively manufactured CrMnFeCoNi high-entropy alloys (HEAs) with different carbon contents were investigated. The superior cryogenic ultimate tensile strength of 1.6 GPa of the 1.5 at.% carbon-containing CrMnFeCoNi HEA was attributed to the stabilization of the sub-grains by numerous carbide precipitates and the dislocation-network induced substructure.

키워드

Laser powder bed fusion; High-entropy alloy; Carbide; Microstructure; Cryogenic strength; MICROSTRUCTURE; STRENGTH

제목: Influence of carbon contents on the cryogenic mechanical properties of precipitation-hardened CrMnFeCoNi high-entropy alloys manufactured by laser powder bed fusion

저자: Kim, Young-Kyun; Lee, Kee-Ahn

DOI: 10.1016/j.msea.2023.145042

발행일: 2023-05

유형: Article

저널명: Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

권: 873