Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K

Xiyao Li; Shijie Sun; Yu Zou; Qi Zhu; Yanzhong Tian; Jiangwei Wang

doi:10.1080/21663831.2022.2053220

Chinese

您当前的位置：

首页 >

文章列表页 >

Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K

Original Reports | 更新时间：2026-08-19

- Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K
- Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K
- 材料研究快报（英文） 2022年10卷第6期页码：385-391
- 作者机构：
  
  1. a Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou People’s Republic of China
  2. b Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials Institute of Wenzhou Zhejiang University
  3. Shi-changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences,c
  4. d Department of Materials Science and Engineering University of Toronto
  5. e School of Mechanical and Aerospace Engineering College of Engineering Nanyang Technological University
  6. f Key Laboratory for Anisotropy and Texture of Materials Ministry of Education School of Materials Science and Engineering Northeastern University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2053220
  中图分类号：
- 网络首发：2022-03-30，
  
  纸质出版：2022
- 稿件说明：
移动端阅览
Xiyao Li, Shijie Sun, Yu Zou, 等. Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K[J]. 材料研究快报（英文）, 2022,10(6):385-391.

Xiyao Li, Shijie Sun, Yu Zou, et al. Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K[J]. Materials Research Letters, 2022, 10(6): 385-391.
Xiyao Li, Shijie Sun, Yu Zou, 等. Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K[J]. 材料研究快报（英文）, 2022,10(6):385-391. DOI： 10.1080/21663831.2022.2053220.

Xiyao Li, Shijie Sun, Yu Zou, et al. Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K[J]. Materials Research Letters, 2022, 10(6): 385-391. DOI： 10.1080/21663831.2022.2053220.

摘要

BSTRACTTwo different types of shear bands generate in ultrafine-grained (UFG) CoCrFeMnNi high-entropy alloys deformed at 77 K

i.e. commonly-observed low angle grain boundary (LAGB) type and unusual twin-coupled type. Twin-coupled shear bands exhibit a misorientation of 56–67° with the matrix

in contrast to the LAGB shear band with a misorientation of 6–12°. Both annealing twins and deformation twins can act as precursor for twin-coupled shear bands

where dislocation accumulation along twin boundaries can tune the orientation of twin lamella. These observations suggest that twin-coupled shear bands can act as an important plastic carrier in materials deformed under extreme conditions.

Abstract

BSTRACTTwo different types of shear bands generate in ultrafine-grained (UFG) CoCrFeMnNi high-entropy alloys deformed at 77 K

i.e. commonly-observed low angle grain boundary (LAGB) type and unusual twin-coupled type. Twin-coupled shear bands exhibit a misorientation of 56–67° with the matrix

in contrast to the LAGB shear band with a misorientation of 6–12°. Both annealing twins and deformation twins can act as precursor for twin-coupled shear bands

关键词

Keywords

references

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

Cryogenic strength-ductility synergy in Mg-6Gd-1Zn alloys with bimodal grain structure coupled with basal lamellar phase

Origin of radiation damage variability in different phases of Al-Cr-Fe-Ni-V high-entropy alloy with heterogeneous microstructures

Contributions and role of B2 nanoparticles in the exceptional strength/ductility trade-offs of Al0.3CoCrFeMnNi high entropy alloy

Superior fracture resistance of additive manufactured high-entropy alloy under impact loading

Strain rate-independent growth of the deformation twin in a CrMnFeCoNi high-entropy alloy