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Title: Twinning-mediated work hardening and texture evolution in CrCoFeMnNi high entropy alloys at cryogenic temperature

Abstract

The cryogenic plastic deformation of CrCoFeMnNi high entropy alloy is characterized by three distinct stages based on the change of the work hardening rate. Microstructure and bulk texture at different strain levels were studied by electron backscatter diffraction (EBSD) and neutron diffraction. Our findings indicate that the deformation twins led to the constant work hardening rate at Stage II and resulted in the appearance of <115 >//TA texture component, while the dislocation slip was involved all though the entire plastic deformation. As a result, the twinning-mediated tensile plastic deformation at cryogenic temperature finally induced the strong {111}- < 112 > texture component and minor {001} < 110 > texture component accompanied with twinning-induced {115}< 552 > texture component.

Authors:
 [1];  [2];  [2]; ORCiD logo [2];  [2];  [1];  [2]; ORCiD logo [2]
  1. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, 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)
Sponsoring Org.:
USDOE
OSTI Identifier:
1376389
Alternate Identifier(s):
OSTI ID: 1550173
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Materials & Design
Additional Journal Information:
Journal Volume: 131; Journal Issue: C; Journal ID: ISSN 0264-1275
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; HEA; twinning-mediated deformation; work hardening; texture; neutron diffraction

Citation Formats

Liu, T. K., Wu, Z., Stoica, A. D., Xie, Q., Wu, W., Gao, Y. F., Bei, H., and An, Ke. Twinning-mediated work hardening and texture evolution in CrCoFeMnNi high entropy alloys at cryogenic temperature. United States: N. p., 2017. Web. doi:10.1016/j.matdes.2017.06.039.
Liu, T. K., Wu, Z., Stoica, A. D., Xie, Q., Wu, W., Gao, Y. F., Bei, H., & An, Ke. Twinning-mediated work hardening and texture evolution in CrCoFeMnNi high entropy alloys at cryogenic temperature. United States. doi:10.1016/j.matdes.2017.06.039.
Liu, T. K., Wu, Z., Stoica, A. D., Xie, Q., Wu, W., Gao, Y. F., Bei, H., and An, Ke. Sat . "Twinning-mediated work hardening and texture evolution in CrCoFeMnNi high entropy alloys at cryogenic temperature". United States. doi:10.1016/j.matdes.2017.06.039. https://www.osti.gov/servlets/purl/1376389.
@article{osti_1376389,
title = {Twinning-mediated work hardening and texture evolution in CrCoFeMnNi high entropy alloys at cryogenic temperature},
author = {Liu, T. K. and Wu, Z. and Stoica, A. D. and Xie, Q. and Wu, W. and Gao, Y. F. and Bei, H. and An, Ke},
abstractNote = {The cryogenic plastic deformation of CrCoFeMnNi high entropy alloy is characterized by three distinct stages based on the change of the work hardening rate. Microstructure and bulk texture at different strain levels were studied by electron backscatter diffraction (EBSD) and neutron diffraction. Our findings indicate that the deformation twins led to the constant work hardening rate at Stage II and resulted in the appearance of <115 >//TA texture component, while the dislocation slip was involved all though the entire plastic deformation. As a result, the twinning-mediated tensile plastic deformation at cryogenic temperature finally induced the strong {111}- < 112 > texture component and minor {001} < 110 > texture component accompanied with twinning-induced {115}< 552 > texture component.},
doi = {10.1016/j.matdes.2017.06.039},
journal = {Materials & Design},
number = C,
volume = 131,
place = {United States},
year = {2017},
month = {6}
}

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Cited by: 12 works
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Works referencing / citing this record:

Cryogenic Treatment of CoCrFeMnNi(NbC) High-Entropy Alloys
journal, November 2019

  • Abbasi, Erfan; Dehghani, Kamran
  • Journal of Materials Engineering and Performance, Vol. 28, Issue 11
  • DOI: 10.1007/s11665-019-04439-8

High-Entropy Alloys: Potential Candidates for High-Temperature Applications - An Overview
journal, October 2017

  • Praveen, Sathiyamoorthi; Kim, Hyoung Seop
  • Advanced Engineering Materials, Vol. 20, Issue 1
  • DOI: 10.1002/adem.201700645

Cryogenic Treatment of CoCrFeMnNi(NbC) High-Entropy Alloys
journal, November 2019

  • Abbasi, Erfan; Dehghani, Kamran
  • Journal of Materials Engineering and Performance, Vol. 28, Issue 11
  • DOI: 10.1007/s11665-019-04439-8