The hydrogen embrittlement (HE) behavior of a commercial QP980 steel is studied in this work. HE susceptibility results indicate that suffers from severe HE, and the fracture mode transforms ductile dimpling to brittle quasi-cleavage under attack hydrogen. EBSD show strain-induced martensite transformation can rarely occur at strain close strain, which mainly attributed high mechanical stabilit...

To evaluate the effect of yield stress on hydrogen embrittlement (HE) martensitic and ferritic steels, (H) capture by structural inhomogeneities (hydrogen traps) plastic deformation mechanism corrosion cracking (SCC) are considered. In presence hydrogen, brittle fracture high-strength steels consists flat areas intergranular at initial austenitic grain boundaries quasi-brittle cracks martensite...