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Author:

An, Zibing (An, Zibing.) | Mao, Shengcheng (Mao, Shengcheng.) (Scholars:毛圣成) | Jiang, Cheng (Jiang, Cheng.) | Li, Ziyao (Li, Ziyao.) | Wu, Shichang (Wu, Shichang.) | Zhai, Yadi (Zhai, Yadi.) | Wang, Li (Wang, Li.) | Liu, Yinong (Liu, Yinong.) | Zhang, Ze (Zhang, Ze.) | Han, Xiaodong (Han, Xiaodong.)

Indexed by:

EI Scopus SCIE

Abstract:

A Co30Cr20Fe18Mn18Ni11Si3 high-entropy alloy (HEA) with low stacking fault energy and high strengthen was designed based on the principle of heterostructure strengthening. The alloy was processed into a multiscale heterogeneous microstructure containing hierarchical twins. The alloy achieved an ultrahigh yield strength of 1500 MPa, ultimate tensile strength of 1750 MPa and a large ductility of 20 % at 77 K. These mechanical properties were superior to those of most FCC HEAs reported in the literature, breaking the strength-ductility trade-off of conventional metal alloys. Such extraordinary mechanical properties were attributed to a suitable strain hardening capability, stemming from the synergistic effect of hetero-deformation-induced hardening, twinning-induced plasticity, and deformation-induced phase transformation during tensile deformation.

Keyword:

Hetero-deformation induced hardening High -entropy alloy Mechanical properties Heterogeneous structure

Author Community:

  • [ 1 ] [An, Zibing]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 2 ] [Mao, Shengcheng]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 3 ] [Jiang, Cheng]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Ziyao]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 5 ] [Zhai, Yadi]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 6 ] [Wang, Li]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 7 ] [Zhang, Ze]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 8 ] [Han, Xiaodong]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 9 ] [Liu, Yinong]Univ Western Australia, Dept Mech Engn, Perth, WA 6009, Australia
  • [ 10 ] [Zhang, Ze]Zhejiang Univ, Ctr Electron Microscopy, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
  • [ 11 ] [Han, Xiaodong]Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen, Peoples R China

Reprint Author's Address:

  • [Mao, Shengcheng]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China;;[Han, Xiaodong]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China;;[Liu, Yinong]Univ Western Australia, Dept Mech Engn, Perth, WA 6009, Australia;;[Han, Xiaodong]Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen, Peoples R China;;

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Source :

SCRIPTA MATERIALIA

ISSN: 1359-6462

Year: 2023

Volume: 239

6 . 0 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 21

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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