Designing eutectic high entropy alloys of CoCrFeNiNbx

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

130 Scopus Citations
View graph of relations

Author(s)

  • Feng He
  • Peng Cheng
  • Qiang Wang
  • Junjie Li
  • Yingying Dang
  • Jincheng Wang

Detail(s)

Original languageEnglish
Pages (from-to)284-289
Journal / PublicationJournal of Alloys and Compounds
Volume656
Online published24 Sep 2015
Publication statusPublished - 25 Jan 2016

Abstract

Based on surveying the existing binary phase diagrams with eutectic points, a strategy of designing eutectic high entropy alloys (EHEAs) with desired high strength and ductility is proposed. Based on the computer-aided thermodynamic calculations, the pseudo eutectic binary alloy system of CoCrFeNiNbx (x = 0.1, 0.25, 0.5 and 0.8) was designed. The experimental results show that the eutectic alloys are composed of a ductile face centered cubic (FCC) phase and a hard Laves phase with fine laminar structures. The designed alloys show excellent integrated mechanical properties of ductility and strength. For the CoCrFeNiNb0.5 alloy, the compressive fracture strength and strain can reach above 2300 MPa and 23.6%, respectively.

Research Area(s)

  • Eutectics, High-entropy alloys, Mechanical properties, Microstructures

Citation Format(s)

Designing eutectic high entropy alloys of CoCrFeNiNbx. / He, Feng; Wang, Zhijun; Cheng, Peng; Wang, Qiang; Li, Junjie; Dang, Yingying; Wang, Jincheng; Liu, C. T.

In: Journal of Alloys and Compounds, Vol. 656, 25.01.2016, p. 284-289.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal