Elucidating the mesoscale deformation in a multi-principle element alloy with hexagonal closed-packed crystal structure

被引：0

作者：

Kuang, Jie ^{[1
]}

Zhang, Dongdong ^{[2
]}

Wang, Shubin ^{[3
]}

Huo, Qinghuan ^{[4
]}

Du, Xinpeng ^{[5
]}

Zhang, Yuqing ^{[1
]}

Liu, Gang ^{[1
]}

Wen, Wei ^{[6
]}

Zhang, Jinyu ^{[1
]}

Sun, Jun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[2] Hong Kong Polytech Univ, Dept Ind & Syst Engn, Hong Kong, Peoples R China

[3] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Precis Formin, Shanghai, Peoples R China

[4] Cent South Univ, Sch Mat Sci & Engn, Changsha, Peoples R China

[5] Univ Cent Florida, Coll Opt & Photon, Orlando, FL USA

[6] Univ Lancaster, Sch Engn, Lancaster LA1 4YW, England

来源：

MATERIALS RESEARCH LETTERS | 2024年 / 12卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Multi-principle element alloys; hexagonal-close packed structure; slip activity; crystal plasticity; deformation homogeneity; IN-SITU ANALYSIS; HETEROGENEOUS DEFORMATION; GRAIN-BOUNDARIES; HIGH DUCTILITY; ENTROPY; STRENGTH; BEHAVIOR; TENSION; CA;

D O I：

10.1080/21663831.2024.2357269

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To date, the exploration of multi-principal element alloys (MPEAs) has rarely ventured into the realm of hexagonal close-packed (HCP) structures. In this research, we embarked on a pioneering systematic comparison between a single-phase Ti-Zr-Hf HCP-MPEA and Ti regarding their dislocation activities and mesoscale deformation homogeneity. Through large-area high-resolution quasi-in-situ slip trace analysis and crystal plasticity finite element modeling, we identified HCP-MPEA's significantly enhanced pyramidal slip activities-resulted from minimized disparities among different deformation modes-notably improve the material's intragranular deformation homogeneity. Alongside MPEA's intrinsically high slip resistance, it renders HCP-MPEA an outstanding strength-toughness combination relative to its conventional HCP counterparts.

引用

页码：515 / 524

页数：10

共 22 条

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