Microstructures and properties of high-entropy alloys

https://zenodo.org/record/1258680/files/article.pdf

The influences of temperature and microstructure on the tensile properties of a CoCrFeMnNi high-entropy alloy

High-entropy alloys (HEAs) are alloys with five or more principal elements. Due to the distinct design concept, these alloys often exhibit unusual properties. Thus, there has been significant interest in these materials, leading to an emerging yet exciting new field. This paper briefly reviews some critical aspects of HEAs, including core effects, phases and crystal structures, mechanical properties, high-temperature properties, structural stabilities, and corrosion behaviors. Current challenges and important future directions are also pointed out.

https://www.tandfonline.com/doi/pdf/10.1080/21663831.2014.912690

High-Entropy Alloys: A Critical Review

The factors of the atomic size difference Delta and the enthalpy of mixing ΔH mιx of the multi-component alloys were summarized from the literatures. The formation zones of solid-solution phases, intermediate phases, and bulk metallic glasses were determined and the validity was verified by experimental results. For forming the solid solution, the alloys should have high entropy of mixing, lower Delta, and not too negative and positive enthalpy of mixing.

G.L. Chen

Papers

Novel microstructure and properties of multicomponent CoCrCuFeNiTix alloys

Microsegregation in high Nb containing TiAl alloy ingots beyond laboratory scale

High temperature deformation behaviors of a high Nb containing TiAl alloy

On the effect of the B2 thermomechanical treatment in improving the room temperature ductility of Fe3Al-based alloys

Structural evolution of Cu during rapid quenching by ab initio molecular dynamics