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author:

LI, Zhan-jiang (LI, Zhan-jiang.) [1] | HOU, Yi-xi (HOU, Yi-xi.) [2] | CHEN, Li (CHEN, Li.) [3] | CHEN, Qing-xin (CHEN, Qing-xin.) [4] | CHEN, Jun-feng (CHEN, Jun-feng.) [5] | CHANG, Fa (CHANG, Fa.) [6] | DAI, Pin-qiang (DAI, Pin-qiang.) [7] | TANG, Qun-hua (TANG, Qun-hua.) [8]

Indexed by:

EI

Abstract:

The tensile behavior of (Fe50Mn30Co10Cr10)100−xSix (x=0 (Si0), 2 (Si2)) metastable HEAs prepared by selective laser melting was studied at cryogenic temperatures. The results demonstrate that the addition of Si leads to lattice distortion and a decrease in stacking fault energy, especially at 77 K, which significantly promotes transformation- induced plasticity (TRIP) in Si2 HEAs. The yield strength, tensile strength, and ductility of Si2 HEAs are 505.2 MPa, 1364.1 MPa, and 19%, which are 43%, 53% and 58% higher than those of Si0 alloy, respectively. TRIP is the main deformation mode, in addition to dislocation slip, and plays a key role in strengthening. The reinforced and continuously sustained TRIP maintains a dynamic strain distribution during deformation. Ultrahigh strain hardening greatly enhances the strength and ductility. © 2025 The Nonferrous Metals Society of China

Keyword:

Cobalt alloys Hafnium alloys High-entropy alloys Iron alloys Manganese alloys Silicon alloys Stacking faults Strain hardening Tensile strength

Community:

  • [ 1 ] [LI, Zhan-jiang]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [LI, Zhan-jiang]College of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
  • [ 3 ] [LI, Zhan-jiang]Fujian Provincial Key Laboratory of New Material Preparation and Forming Technology, Fuzhou; 350118, China
  • [ 4 ] [HOU, Yi-xi]Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [CHEN, Li]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 6 ] [CHEN, Li]College of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
  • [ 7 ] [CHEN, Qing-xin]College of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
  • [ 8 ] [CHEN, Qing-xin]Fujian Provincial Key Laboratory of New Material Preparation and Forming Technology, Fuzhou; 350118, China
  • [ 9 ] [CHEN, Jun-feng]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 10 ] [CHANG, Fa]College of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
  • [ 11 ] [CHANG, Fa]Fujian Provincial Key Laboratory of New Material Preparation and Forming Technology, Fuzhou; 350118, China
  • [ 12 ] [DAI, Pin-qiang]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 13 ] [DAI, Pin-qiang]College of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
  • [ 14 ] [DAI, Pin-qiang]Fujian Provincial Key Laboratory of New Material Preparation and Forming Technology, Fuzhou; 350118, China
  • [ 15 ] [TANG, Qun-hua]School of Mechanical & Electrical Engineering, Putian University, Putian; 351100, China

Reprint 's Address:

  • [dai, pin-qiang]fujian provincial key laboratory of new material preparation and forming technology, fuzhou; 350118, china;;[dai, pin-qiang]college of materials science and engineering, fuzhou university, fuzhou; 350116, china;;[dai, pin-qiang]college of materials science and engineering, fujian university of technology, fuzhou; 350118, china

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Source :

Transactions of Nonferrous Metals Society of China (English Edition)

ISSN: 1003-6326

Year: 2025

Issue: 3

Volume: 35

Page: 872-887

4 . 7 0 0

JCR@2023

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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