Lightweight single-phase Al-based complex concentrated alloy with high specific strength.

ABSTRACT: Developing light yet strong aluminum (Al)-based alloys has been attracting unremitting efforts due to the soaring demand for energy-efficient structural materials. However, this endeavor is impeded by the limited solubility of other lighter components in Al. Here, we propose to surmount this challenge by converting multiple brittle phases into a ductile solid solution in Al-based complex concentrated alloys (CCA) by applying high pressure and temperature. We successfully develop a face-centered cubic single-phase Al-based CCA, Al₅₅Mg₃₅Li₅Zn₅, with a low density of 2.40 g/cm³ and a high specific yield strength of 344×10³N·m/kg (typically ~ 200×10³N·m/kg in conventional Al-based alloys). Our analysis reveals that

SUBMITTER: Han M 

PROVIDER: S-EPMC11330973 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature