Enhanced mechanical properties of dual phase steel via cross rolling and intercritical annealing

Abstract

Cross rolling followed by intercritical annealing was proposed as an alternative route for processing of dual phase (DP) steels, which led to fine recrystallized ferrite grain size and uniformly distributed martensite islands. Accordingly, the processed low-carbon steel showed better strength-ductility trade off, higher hardness, and greater work-hardening exponent.