Synergetic strengthening through ultrafine-grained anisotropic microstructure and nanoscale heterogeneity in CoCuFeMnNi high entropy alloy wires

Sang Hun Shim,Dong-Hyun Lee,Byung Ju Lee,In-Chul Choi,Young-Kyun Kim,Ka Ram Lim,Young Sang Na,Sun Ig Hong

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING（2024）

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摘要

This study investigated the post-drawn annealed CoCuFeMnNi high-entropy wires with distinct dual phase structure and B2 nanoprecipitates. The exceptional hardness observed of the post-drawn annealed CoCuFeMnNi wires can be attributed to the synergetic effect of the ultrafine-grained (UFG) structure and nanoscale precipitation/heterogeneity in the post-drawn annealed CoCuFeMnNi wires.

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关键词

High-entropy alloy (HEA) wire,Anisotropy,Mechanical property,Activation volume,Nanoscale heterogeneity

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