Strong, ductile, and thermally stable Cu-based metal-intermetallic nanostructured composites.

ABSTRACT: Bulk metallic glasses (BMGs) and nanocrystalline metals (NMs) have been extensively investigated due to their superior strengths and elastic limits. Despite these excellent mechanical properties, low ductility at room temperature and poor microstructural stability at elevated temperatures often limit their practical applications. Thus, there is a need for a metallic material system that can overcome these performance limits of BMGs and NMs. Here, we present novel Cu-based metal-intermetallic nanostructured composites (MINCs), which exhibit high ultimate compressive strengths (over 2 GPa), high compressive failure strain (over 20%), and superior microstructural stability even at temperatures above the glass transition temperature of Cu-based BMGs. Rapid solidification produces a unique ultr

SUBMITTER: Dusoe KJ 

PROVIDER: S-EPMC5220353 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature