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Title: Single crystal plastic behavior of a single-phase, face-center-cubic-structured, equiatomic FeNiCrCo alloy

Abstract

To understand the fundamental deformation mechanisms of compositionally complex alloys, single crystals of a multi-component equiatomic FeNiCoCr alloy with face-centered cubic (FCC) structure were grown for mechanical studies. Similarly to typical FCC pure metals, slip trace analyses indicate that dislocation slips take place on (1 1 1) planes along [11¯0] directions. The critical resolved shear stress (CRSS) obeys the Schmid law at both 77 and 293 K, and tension–compression asymmetry is not observed. Although this material slips in a normal FCC manner both at 293 and 77 K, compared to typical FCC metals the CRSS’s strong temperature dependence is abnormal.

Authors:
 [1];  [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1213350
Alternate Identifier(s):
OSTI ID: 1251488
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 109; Journal Issue: 2015; Journal ID: ISSN 1359-6462
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Wu, Zhenggang, Gao, Y. F., and Bei, Hongbin. Single crystal plastic behavior of a single-phase, face-center-cubic-structured, equiatomic FeNiCrCo alloy. United States: N. p., 2015. Web. doi:10.1016/j.scriptamat.2015.07.031.
Wu, Zhenggang, Gao, Y. F., & Bei, Hongbin. Single crystal plastic behavior of a single-phase, face-center-cubic-structured, equiatomic FeNiCrCo alloy. United States. https://doi.org/10.1016/j.scriptamat.2015.07.031
Wu, Zhenggang, Gao, Y. F., and Bei, Hongbin. Sat . "Single crystal plastic behavior of a single-phase, face-center-cubic-structured, equiatomic FeNiCrCo alloy". United States. https://doi.org/10.1016/j.scriptamat.2015.07.031. https://www.osti.gov/servlets/purl/1213350.
@article{osti_1213350,
title = {Single crystal plastic behavior of a single-phase, face-center-cubic-structured, equiatomic FeNiCrCo alloy},
author = {Wu, Zhenggang and Gao, Y. F. and Bei, Hongbin},
abstractNote = {To understand the fundamental deformation mechanisms of compositionally complex alloys, single crystals of a multi-component equiatomic FeNiCoCr alloy with face-centered cubic (FCC) structure were grown for mechanical studies. Similarly to typical FCC pure metals, slip trace analyses indicate that dislocation slips take place on (1 1 1) planes along [11¯0] directions. The critical resolved shear stress (CRSS) obeys the Schmid law at both 77 and 293 K, and tension–compression asymmetry is not observed. Although this material slips in a normal FCC manner both at 293 and 77 K, compared to typical FCC metals the CRSS’s strong temperature dependence is abnormal.},
doi = {10.1016/j.scriptamat.2015.07.031},
journal = {Scripta Materialia},
number = 2015,
volume = 109,
place = {United States},
year = {Sat Jul 25 00:00:00 EDT 2015},
month = {Sat Jul 25 00:00:00 EDT 2015}
}

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Cited by: 53 works
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Works referenced in this record:

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Works referencing / citing this record:

Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy
journal, February 2018


Quantum critical behavior in the asymptotic limit of high disorder in the medium entropy alloy NiCoCr0.8
journal, June 2017


Easy Controlled Properties of Quaternary FeNiCrCd Thin Films Deposited from a Single dc Magnetron Sputtering Under the Influence of Deposition Rate
journal, May 2019

  • Köçkar, Hakan; Şenturk, Özgür; Karpuz, Ali
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  • DOI: 10.1007/s10948-019-5082-8

Tensile Properties and Serrated Flow Behavior of As-Cast CoCrFeMnNi High-Entropy Alloy at Room and Elevated Temperatures
journal, October 2018


A simplified model connecting lattice distortion with friction stress of Nb-based equiatomic high-entropy alloys
journal, April 2019


Constitutive modeling and strain hardening of CoCrFeNiAl x high-entropy alloys
journal, September 2019