A comparison study of local lattice distortion in Ni80Pd20 binary alloy and FeCoNiCrPd high-entropy alloy

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

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Author(s)

  • Y. Tong
  • K. Jin
  • H. Bei
  • J.Y.P. Ko
  • Y. Zhang
  • F.X. Zhang

Detail(s)

Original languageEnglish
Pages (from-to)14-18
Journal / PublicationScripta Materialia
Volume156
Online published20 Jul 2018
Publication statusPublished - Nov 2018
Externally publishedYes

Abstract

The effect of alloying Pd on the local lattice distortion (LLD) in the Ni and FeCoNiCr host matrixes is quantified by integrating local structure characterization and theoretical calculations. The local structure measurements reveal that the mean LLD in the FeCoNiCrPd high-entropy alloy (HEA) is twice as high as the Ni80Pd20 binary alloy though the FeCoNiCr base alloy has a negligible mean LLD. Density functional theory calculations unveil that the unexpected high mean LLD in FeCoNiCrPd is related to the high fluctuation of LLD in the FeCoNiCr matrix. These observations suggest a synergetic effect of chemical complexity on HEAs’ mean LLD.

Research Area(s)

  • Density functional theory, High-entropy alloys, Lattice distortion, X-ray diffraction

Citation Format(s)

A comparison study of local lattice distortion in Ni80Pd20 binary alloy and FeCoNiCrPd high-entropy alloy. / Tong, Y.; Zhao, S.; Jin, K.; Bei, H.; Ko, J.Y.P.; Zhang, Y.; Zhang, F.X.

In: Scripta Materialia, Vol. 156, 11.2018, p. 14-18.

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