Isotropic and kinematic hardening of a high entropy alloy

Olivier Bouaziz, Jongun Moon, Hyoung Seop Kim, Yuri Estrin

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The contribution of kinematic hardening to the overall strain hardening of a high entropy alloy (HEA) was investigated for the first time ever. It was assessed for a single-phase equiatomic CoCrFeMnNi alloy based on a study of the Bauschinger effect. The observed occurrence of high back stresses signifies substantial kinematic hardening. We attribute it to the low probability of cross-slip in this HEA which, however, rises in the process of straining. A model that captures the mentioned effects was proposed and validated.

Original languageEnglish
Pages (from-to)107-110
Number of pages4
JournalScripta Materialia
Volume191
DOIs
Publication statusPublished - 15 Jan 2021

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