Towards ultrastrong and ductile medium-entropy alloy through dual-phase ultrafine-grained architecture

Zhen Chen,Hongbo Xie,Haile Yan,Xueyong Pang,Yuhui Wang,Guilin Wu,Lijun Zhang,Hu Tang,Bo Gao,Bo Yang,Yanzhong Tian,Huiyang Gou,Gaowu Qin

Journal of Materials Science & Technology（2022）

引用 14|浏览11

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摘要

•Novel V0.5Cr0.5CoNi medium-entropy alloy with fully-recrystallized dual-phase UFG architecture.•Formation of local chemical ordered structure in HCP solid solution and the significant strengthening effects.•Ultrahigh yield strength of 1476 MPa and promising uniform elongation of 13.2% at room temperature.

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关键词

Medium-entropy alloy,FCC/HCP dual-phase,Strength and ductility,Ultrafine-grained (UFG),Multiple hardening mechanisms

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