A quinary WTaCrVHf nanocrystalline refractory high-entropy alloy withholding extreme irradiation environments.

ABSTRACT: In the quest of new materials that can withstand severe irradiation and mechanical extremes for advanced applications (e.g. fission & fusion reactors, space applications, etc.), design, prediction and control of advanced materials beyond current material designs become paramount. Here, through a combined experimental and simulation methodology, we design a nanocrystalline refractory high entropy alloy (RHEA) system. Compositions assessed under extreme environments and in situ electron-microscopy reveal both high thermal stability and radiation resistance. We observe grain refinement under heavy ion irradiation and resistance to dual-beam irradiation and helium implantation in the form of low defect generation and evolution, as well as no detectable grain growth. The experimental and modeli

SUBMITTER: El Atwani O 

PROVIDER: S-EPMC10154406 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature