Heat Treatment of Metals ›› 2023, Vol. 48 ›› Issue (8): 225-234.DOI: 10.13251/j.issn.0254-6051.2023.08.037

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Effect of stacking fault energy on deformation mechanism in face centered cubic high-entropy alloy

Zhang Bo, Li Jie, Wu Kaidi, Niu Lichong, Wan Decheng, Feng Yunli   

  1. School of Metallurgy and Energy, North China University of Technology, Tangshan Hebei 063210, China
  • Received:2023-02-19 Revised:2023-06-24 Online:2023-08-25 Published:2023-10-10

Abstract: Properties of high-entropy alloys can be tuned by changing the types and ratios of alloying elements, which affect the stacking fault energy and phase stability of the alloy system, then the plastic deformation mechanism of the alloy can be changed, thus the optimal comprehensive mechanical properties can be obtained. The factors that affect the stacking fault energy of face centered cubic high-entropy alloys, and the influence of stacking fault energy on deformation mechanism, are reviewed. And the methods that can affect the mechanical properties by changing the activation order of deformation mechanisms by adjusting the stacking fault energy are prospected.

Key words: stacking fault energy, high-entropy alloy, twinning induced plasticity effect, phase transformation induced plasticity effect, dislocation slip, mechanical properties

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