Air-oxidation of FeCoNiCr-based quinary high-entropy alloys at 700–900 °C

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

63 Scopus Citations
View graph of relations

Author(s)

  • Wu Kai
  • C. C. Li
  • F. P. Cheng
  • K. P. Chu
  • R. T. Huang
  • L. W. Tsay

Detail(s)

Original languageEnglish
Pages (from-to)116-125
Journal / PublicationCorrosion Science
Volume121
Publication statusPublished - 1 Jun 2017

Abstract

The oxidation of three quinary equimolar high-entropy alloys, containing FeCoNiCrAl, FeCoNiCrMn, and FeCoNiCrSi was studied in dry air at 700–900 °C. The Mn-containing alloy was single-phase, while both Al- and Si-containing alloys were dual-phase. The oxidation kinetics of all the alloys followed the parabolic rate law, regardless of temperature and alloy composition. The oxidation rates of both Al- and Si-containing alloys were lower than those of the quaternary FeCoNiCr alloy, while those of the Mn-containing alloy went to an opposite direction. Multiple scales formed on the alloys were strongly composition-dependent.

Research Area(s)

  • A: High-entropy alloys, B: Oxidation, C: Scales

Citation Format(s)

Air-oxidation of FeCoNiCr-based quinary high-entropy alloys at 700–900 °C. / Kai, Wu; Li, C. C.; Cheng, F. P.; Chu, K. P.; Huang, R. T.; Tsay, L. W.; Kai, J. J.

In: Corrosion Science, Vol. 121, 01.06.2017, p. 116-125.

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