Deformation of CoCrFeNi high entropy alloy at large strain

Bing Wang, Haiyan He, Muhammad Naeem, Si Lan, Stefanus Harjo, Takuro Kawasaki, Yongxing Nie, H. W. Kui, T. Ungár, Dong Ma, Alexandru D. Stoica, Qian Li, Yubin Ke, C. T. Liu, Xun Li Wang

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The deformation behavior of an equi-atomic face-centered-cubic CoCrFeNi high entropy alloy was investigated by in-situ neutron diffraction under tensile loading up to 40% applied strain. A three-stage deformation behavior was fully captured by lattice strain and texture evolution. In spite of the chemical complexity, the deformation in CoCrFeNi is dominated by dislocation activities. Analysis of diffraction and microscopy data shows that the deformation progresses from dislocation slip to severe entanglement, where a sharp increase in dislocation density was observed. The neutron diffraction data, corroborated by transmission electron microscopy analysis, provided microscopic insights of the previously reported three-stage hardening behavior.

Original languageEnglish
Pages (from-to)54-57
Number of pages4
JournalScripta Materialia
Volume155
DOIs
Publication statusPublished - Oct 1 2018

Fingerprint

Entropy
entropy
Neutron diffraction
neutron diffraction
hardening
Hardening
Microscopic examination
slip
textures
Textures
Diffraction
Transmission electron microscopy
microscopy
transmission electron microscopy
diffraction

Keywords

  • High entropy alloy
  • Large deformation strain
  • Neutron diffraction
  • Plastic deformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Wang, B., He, H., Naeem, M., Lan, S., Harjo, S., Kawasaki, T., ... Wang, X. L. (2018). Deformation of CoCrFeNi high entropy alloy at large strain. Scripta Materialia, 155, 54-57. https://doi.org/10.1016/j.scriptamat.2018.06.013

Deformation of CoCrFeNi high entropy alloy at large strain. / Wang, Bing; He, Haiyan; Naeem, Muhammad; Lan, Si; Harjo, Stefanus; Kawasaki, Takuro; Nie, Yongxing; Kui, H. W.; Ungár, T.; Ma, Dong; Stoica, Alexandru D.; Li, Qian; Ke, Yubin; Liu, C. T.; Wang, Xun Li.

In: Scripta Materialia, Vol. 155, 01.10.2018, p. 54-57.

Research output: Contribution to journalArticle

Wang, B, He, H, Naeem, M, Lan, S, Harjo, S, Kawasaki, T, Nie, Y, Kui, HW, Ungár, T, Ma, D, Stoica, AD, Li, Q, Ke, Y, Liu, CT & Wang, XL 2018, 'Deformation of CoCrFeNi high entropy alloy at large strain', Scripta Materialia, vol. 155, pp. 54-57. https://doi.org/10.1016/j.scriptamat.2018.06.013
Wang B, He H, Naeem M, Lan S, Harjo S, Kawasaki T et al. Deformation of CoCrFeNi high entropy alloy at large strain. Scripta Materialia. 2018 Oct 1;155:54-57. https://doi.org/10.1016/j.scriptamat.2018.06.013
Wang, Bing ; He, Haiyan ; Naeem, Muhammad ; Lan, Si ; Harjo, Stefanus ; Kawasaki, Takuro ; Nie, Yongxing ; Kui, H. W. ; Ungár, T. ; Ma, Dong ; Stoica, Alexandru D. ; Li, Qian ; Ke, Yubin ; Liu, C. T. ; Wang, Xun Li. / Deformation of CoCrFeNi high entropy alloy at large strain. In: Scripta Materialia. 2018 ; Vol. 155. pp. 54-57.
@article{58a2f85a0b3d4513b0e973412d699c93,
title = "Deformation of CoCrFeNi high entropy alloy at large strain",
abstract = "The deformation behavior of an equi-atomic face-centered-cubic CoCrFeNi high entropy alloy was investigated by in-situ neutron diffraction under tensile loading up to 40{\%} applied strain. A three-stage deformation behavior was fully captured by lattice strain and texture evolution. In spite of the chemical complexity, the deformation in CoCrFeNi is dominated by dislocation activities. Analysis of diffraction and microscopy data shows that the deformation progresses from dislocation slip to severe entanglement, where a sharp increase in dislocation density was observed. The neutron diffraction data, corroborated by transmission electron microscopy analysis, provided microscopic insights of the previously reported three-stage hardening behavior.",
keywords = "High entropy alloy, Large deformation strain, Neutron diffraction, Plastic deformation",
author = "Bing Wang and Haiyan He and Muhammad Naeem and Si Lan and Stefanus Harjo and Takuro Kawasaki and Yongxing Nie and Kui, {H. W.} and T. Ung{\'a}r and Dong Ma and Stoica, {Alexandru D.} and Qian Li and Yubin Ke and Liu, {C. T.} and Wang, {Xun Li}",
year = "2018",
month = "10",
day = "1",
doi = "10.1016/j.scriptamat.2018.06.013",
language = "English",
volume = "155",
pages = "54--57",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Deformation of CoCrFeNi high entropy alloy at large strain

AU - Wang, Bing

AU - He, Haiyan

AU - Naeem, Muhammad

AU - Lan, Si

AU - Harjo, Stefanus

AU - Kawasaki, Takuro

AU - Nie, Yongxing

AU - Kui, H. W.

AU - Ungár, T.

AU - Ma, Dong

AU - Stoica, Alexandru D.

AU - Li, Qian

AU - Ke, Yubin

AU - Liu, C. T.

AU - Wang, Xun Li

PY - 2018/10/1

Y1 - 2018/10/1

N2 - The deformation behavior of an equi-atomic face-centered-cubic CoCrFeNi high entropy alloy was investigated by in-situ neutron diffraction under tensile loading up to 40% applied strain. A three-stage deformation behavior was fully captured by lattice strain and texture evolution. In spite of the chemical complexity, the deformation in CoCrFeNi is dominated by dislocation activities. Analysis of diffraction and microscopy data shows that the deformation progresses from dislocation slip to severe entanglement, where a sharp increase in dislocation density was observed. The neutron diffraction data, corroborated by transmission electron microscopy analysis, provided microscopic insights of the previously reported three-stage hardening behavior.

AB - The deformation behavior of an equi-atomic face-centered-cubic CoCrFeNi high entropy alloy was investigated by in-situ neutron diffraction under tensile loading up to 40% applied strain. A three-stage deformation behavior was fully captured by lattice strain and texture evolution. In spite of the chemical complexity, the deformation in CoCrFeNi is dominated by dislocation activities. Analysis of diffraction and microscopy data shows that the deformation progresses from dislocation slip to severe entanglement, where a sharp increase in dislocation density was observed. The neutron diffraction data, corroborated by transmission electron microscopy analysis, provided microscopic insights of the previously reported three-stage hardening behavior.

KW - High entropy alloy

KW - Large deformation strain

KW - Neutron diffraction

KW - Plastic deformation

UR - http://www.scopus.com/inward/record.url?scp=85048422438&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048422438&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2018.06.013

DO - 10.1016/j.scriptamat.2018.06.013

M3 - Article

AN - SCOPUS:85048422438

VL - 155

SP - 54

EP - 57

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

ER -