Transitions in the strain hardening behaviour of tempered martensite

Martensite is a key constituent in advanced high strength steels (AHSS). The mechanical response of martensite has received particular attention in recent years due to its very high strain hardening rate. Previous studies have shown that the strain hardening behaviour of as-quenched and low temperature tempered martensite can be described by considering martensite as a composite, with constituents showing a spectrum of yield strengths or …