Micro-mechanical characterisation of slip behaviour and precipitation strengthening in CoCrFeNiTiMo alloy additively manufactured by laser powder bed fusion

Kwangsik Kwak, Yuki Okamura,Yoji Mine,Kazuki Takashima,Shuho Koseki,Shinsuke Ando,Kosuke Kuwabara

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING（2022）

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摘要

Micro-tensile tests on CoCrFeNiTiMo multicomponent alloys additively manufactured by laser powder bed fusion revealed that the slip system activated at the yielding point was octahedral and cubic slips depending on the loading direction. Ordered precipitation by heat treatment inhibited the cubic slip and enhanced the strength and strain hardening ability.

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关键词

Characterization,Stress,strain measurements,Multicomponent alloys,Intermetallics,Laser methods,Plasticity

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