Hydrogen embrittlement made stainle

Hydrogen embrittlement made stainless steel become brittle and fracture due to the introduction and subsequent diffusion of hydrogen into the metal. This was a result of accidental introduction of hydrogen during forming and finishing operations. However, the hydrogen releasing in electroless plating process was inevitable occurrence. After electroless plating, the 4Cr13 component was processed by dehydrogenation. The failure mode of the steel material induced by hydrogen embrittlement was intergranular fracture. However, the intergranular fracture was not found on the fracture surface of the substandard components. It was inferred that the hydrogen embrittlement could be excluded in this study.