Amorphization activated by semicoherent interfaces of FCC/BCC HEA multilayers during deformation

Zhaoming Yang,Baoqin Fu,Zhien Ning, Xuanyu Bai,Hengming Yang,Qingchun Chen,Dongwei Luo,Nan Qiu,Yuan Wang

Materials & Design（2022）

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摘要

•The plastic deformation mechanisms of EHEAs are interfacial structure-dependent.•Coherent interfaces facilitate continuous slipping of dislocations and co-deformation.•Semicoherent interfaces activate amorphization by dislocation pileup during deformation.•Engineering semicoherent interfaces are desirable for designing high strength-ductile nanostructured EHEAs.

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关键词

HEA,Interfacial structure,Deformation mechanisms,Mechanical properties

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