Al-Induced Unusual Grain Growth in Ni-Co-Cr Multi-Principal Element Alloys.

ABSTRACT: Substitutional elements are introduced to face-centered cubic (FCC) multi-principal element alloys (MPEAs) to effectively enhance the mechanical performance by solid solution strengthening and second-phase strengthening. Commonly, relatively large atomic radius elements introduced into the alloy matrix result in lattice distortion and hinder grain boundary migration, thus achieving matrix strengthening. However, owing to the complex compositions of MPEAs, different substitutional elements introduced affect the microstructure evolution behavior and corresponding strengthening effects. In this work, an abnormal grain growth behavior of Ni-Co-Cr-based MPEAs based on Al alloying was observed. Systematic annealing experiments combined with quantitative grain growth analysis were conducted to cl

SUBMITTER: Zhou K 

PROVIDER: S-EPMC12897969 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature