(S327)Effect of grain size on hydrogen embrittlement behaviors in 22Mn-0.6C TWIP steel

摘要

Twinning induced plasticity (TWIP) steels exhibit good balance of high strength and large ductility due to enhanced deformation twinning. Although it is well known that austenitic steels are less sensitive to hydrogen embrittlement (HE), some researches have reported that HE occurred in TWIP steels [1, 2]. So far, relationship between the grain size and HE behaviors of TWIP steels has not yet been clarified. The present study investigated the effect of grain size on HE behaviors in a high Mn TWIP steel.