Integrated design of aluminum-enriched high-entropy refractory B2 alloys with synergy of high strength and ductility.

ABSTRACT: Refractory high-entropy alloys (RHEAs) are promising high-temperature structural materials. Their large compositional space poses great design challenges for phase control and high strength-ductility synergy. The present research pioneers using integrated high-throughput machine learning with Monte Carlo simulations supplemented by ab initio calculations to effectively navigate phase selection and mechanical property predictions, developing single-phase ordered B2 aluminum-enriched RHEAs (Al-RHEAs) demonstrating high strength and ductility. These Al-RHEAs achieve remarkable mechanical properties, including compressive yield strengths up to 1.7 gigapascals, fracture strains exceeding 50%, and notable high-temperature strength retention. They also demonstrate a tensile yield strength of 1.0

SUBMITTER: Qi J 

PROVIDER: S-EPMC11616710 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature