Two-gigapascal-strong ductile soft magnets.

ABSTRACT: Soft magnetic materials (SMMs) are indispensable for electromechanical energy conversion in high-efficiency applications, but they are exposed to increasing mechanical loading conditions in electric motors due to higher rotational speeds. Enhancing the yield strength of SMMs is essential to prevent the degradation in magnetic performance and failure from plastic deformation, yet most SMMs have yield strengths far below one gigapascal. Here, we present a multicomponent nanostructuring strategy that doubles the yield strength of SMMs while maintaining ductility. We introduce morphologically anisotropic nanoprecipitates through dislocation-driven precipitation induced by preceding deformation during heat treatment in an iron-nickel-cobalt-tantalum material. With all dimensions of the precipit

SUBMITTER: Han L 

PROVIDER: S-EPMC11584709 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature