Tuning the defects in face centered cubic high entropy alloy via temperature-dependent stacking fault energy

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

4 Scopus Citations
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Author(s)

  • Feng He
  • Qingfeng Wu
  • Junjie Li
  • Jincheng Wang

Detail(s)

Original languageEnglish
Pages (from-to)134-138
Number of pages5
Journal / PublicationScripta Materialia
Volume155
Online published26 Jun 2018
Publication statusPublished - Oct 2018

Abstract

Extreme-low (even negative) and strong temperature-dependent stacking fault energy (SFE) is one of the most unique properties in face centered cubic (FCC) high entropy alloys (HEAs). Here, by making full use of this unique property, we present a proof-of-principle investigation of tuning defects in FCC HEAs through changing SFE during deformation. A qualitative model is proposed to predict the possibilities of different types of defects in FCC HEAs. Following this model, different defects combinations, instead of individual defects, are well controlled by rolling. FCC HEAs with balanced dislocation, stacking faults and twins show good balance between strength and ductility.

Research Area(s)

  • Defects, High entropy alloy, Stacking fault energy

Citation Format(s)

Tuning the defects in face centered cubic high entropy alloy via temperature-dependent stacking fault energy. / He, Feng; Wang, Zhijun; Wu, Qingfeng; Chen, Da; Yang, Tao; Li, Junjie; Wang, Jincheng; Liu, C. T.; Kai, Ji-jung.

In: Scripta Materialia, Vol. 155, 10.2018, p. 134-138.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review