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Influence of plastic deformation on the corrosion behavior of CrCoFeMnNi high entropy alloy

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  • NSTL
  • Elsevier
In this research, the influence of plastic deformation on the corrosion behaviors of CrCoFeMnNi high entropy alloy were comprehensively investigated. As the degree of plastic deformation increases, both the acceptor density of the passive film and the thickness of the space charge layer increase, while the resistance of the passive film gradually weakens. The Fe and Cr oxides on the passive films decrease with the increasing plastic deformation degree, resulting in the weaker resistance of the passive film. Numerous dislocations formed after plastic deformation promote the increase of electrochemical dynamics and galvanic corrosion rate. Therefore, severe plastic deformation lowers the corrosion resistance of the alloy.

DislocationsHigh entropy alloyPassive behaviorPlastic deformationSpace charge layer

Jin J.、Zhang M.、Liu F.、Wang X.、Gong P.、Tang X.、Wang Y.

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State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology

School of Mechanical Engineering Wuhan Polytechnic University

2022

10.1016/j.jallcom.2021.161822

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.891
  • 17
  • 54