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Title: Wear behavior of Al 0.6CoCrFeNi high-entropy alloys: Effect of environments

Abstract

Environment can impact the wear behavior of metals and alloys substantially. The tribological properties of Al 0.6CoCrFeNi high-entropy alloys (HEAs) were investigated in ambient air, deionized water, simulated acid rain, and simulated seawater conditions at frequencies of 2–5 Hz. The as-cast alloy was composed of simple face-centered cubic and body-centered cubic phases. The wear rate of the as-cast HEA in the ambient air condition was significantly higher than that in the liquid environment. The wear resistance in seawater was superior to that in ambient air, deionized water, and acid rain. Both the friction coefficient and wear rate in seawater were the lowest due to the formation of oxidation film, lubrication, and corrosion action in solution. The dominant wear mechanism in the ambient air condition and deionized water was abrasive wear, delamination wear, and oxidative wear. Here by contrast, the wear mechanism in acid rain and seawater was mainly corrosion wear, adhesive wear, abrasive wear, and oxidative wear.

Authors:
 [1];  [1];  [1];  [2];  [3];  [4];  [1]
  1. Taiyuan Univ. of Technology, Taiyuan (China)
  2. The Univ. of Tennessee, Knoxville, TN (United States)
  3. National Energy Technology Lab. (NETL), Albany, OR (United States); AECOM, Albany, OR (United States)
  4. National Energy Technology Lab. (NETL), Albany, OR (United States)
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Albany, OR (United States)
Sponsoring Org.:
FE; USDOE
OSTI Identifier:
1509731
Report Number(s):
NETL-PUB-22337
Journal ID: ISSN 0884-2914
Grant/Contract Number:  
FE0004000
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Materials Research
Additional Journal Information:
Journal Volume: 33; Journal Issue: 19; Journal ID: ISSN 0884-2914
Publisher:
Materials Research Society
Country of Publication:
United States
Language:
English

Citation Formats

Chen, Ming, Shi, Xiao Hui, Yang, Huijun, Liaw, Peter K., Gao, Michael C., Hawk, Jeffrey A., and Qiao, Junwei. Wear behavior of Al0.6CoCrFeNi high-entropy alloys: Effect of environments. United States: N. p., 2018. Web. doi:10.1557/jmr.2018.279.
Chen, Ming, Shi, Xiao Hui, Yang, Huijun, Liaw, Peter K., Gao, Michael C., Hawk, Jeffrey A., & Qiao, Junwei. Wear behavior of Al0.6CoCrFeNi high-entropy alloys: Effect of environments. United States. doi:10.1557/jmr.2018.279.
Chen, Ming, Shi, Xiao Hui, Yang, Huijun, Liaw, Peter K., Gao, Michael C., Hawk, Jeffrey A., and Qiao, Junwei. Thu . "Wear behavior of Al0.6CoCrFeNi high-entropy alloys: Effect of environments". United States. doi:10.1557/jmr.2018.279.
@article{osti_1509731,
title = {Wear behavior of Al0.6CoCrFeNi high-entropy alloys: Effect of environments},
author = {Chen, Ming and Shi, Xiao Hui and Yang, Huijun and Liaw, Peter K. and Gao, Michael C. and Hawk, Jeffrey A. and Qiao, Junwei},
abstractNote = {Environment can impact the wear behavior of metals and alloys substantially. The tribological properties of Al0.6CoCrFeNi high-entropy alloys (HEAs) were investigated in ambient air, deionized water, simulated acid rain, and simulated seawater conditions at frequencies of 2–5 Hz. The as-cast alloy was composed of simple face-centered cubic and body-centered cubic phases. The wear rate of the as-cast HEA in the ambient air condition was significantly higher than that in the liquid environment. The wear resistance in seawater was superior to that in ambient air, deionized water, and acid rain. Both the friction coefficient and wear rate in seawater were the lowest due to the formation of oxidation film, lubrication, and corrosion action in solution. The dominant wear mechanism in the ambient air condition and deionized water was abrasive wear, delamination wear, and oxidative wear. Here by contrast, the wear mechanism in acid rain and seawater was mainly corrosion wear, adhesive wear, abrasive wear, and oxidative wear.},
doi = {10.1557/jmr.2018.279},
journal = {Journal of Materials Research},
number = 19,
volume = 33,
place = {United States},
year = {2018},
month = {9}
}

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Works referenced in this record:

Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
journal, May 2004

  • Yeh, J.-W.; Chen, S.-K.; Lin, S.-J.
  • Advanced Engineering Materials, Vol. 6, Issue 5, p. 299-303
  • DOI: 10.1002/adem.200300567