Compositional undulation induced strain hardening and delocalization in multi-principal element alloys

Jiaqi Zhu,Ligang Sun,Dongfeng Li,Linli Zhu,Xiaoqiao He

International Journal of Mechanical Sciences（2022）

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摘要

•Compositional undulation promotes strength-plasticity synergy and strain hardening.•Enhanced dislocation multiplication induced by compositional undulation.•Compositional undulation induced hcp microbands facilitates strain delocalization.•Alternation of hard and soft regions promotes strain hardening and delocalization.

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关键词

Medium-entropy alloy,Compositional undulation,Strain hardening,Stress/strain delocalization,hcp microband

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