Solid solution strengthening theories of high-entropy alloys

By Carlyn R. LaRosa, M. Shih, C. Varvenne, M. Ghazisaeidi. Materials Characterization, 2019

182 citations recorded by the source corpus.

Abstract We present a review of solid solution strengthening models for random concentrated solid solutions of which high entropy alloys are an interesting subset. High entropy alloys (HEAs) usually refer to a class of multicomponent alloys in equal or near equal concentrations. These complex compositions break the conventional notion of solutes and solvents. Few attempts have been made to extend the conventional solute strengthening models to HEAs. Among these, the model based on an average effective medium, does not include any adjustable parameter, allows all model inputs to be computed by atomistic simulations, and has predicted the strength of fcc HEAs in good agreement with experiments. The basic concepts of this theory is explained and its capabilities are compared with few other existing models for solute strengthening of HEAs.

Subfields: Aerospace Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/d60de4fc412e2e9739668ff0da9daf6be11a8023

Citations in the corpus

• Clarifying the four core effects of high-entropy materials (2024, unknown): “The high-entropy effect simplifies the microstructure of HEAs and creates synergistic effects, displaying better properties such as greater strength and ductility of solution phases due to solution hardening 1,58–61 .”