Hydrogen embrittlement of SK85 high-strength steel sheets was evaluated through a three-point bending test. The effects electroless Ni–P plating and Ni electroplating on hydrogen were examined with respect to the permeability plated films. On morrow plating, indicates high degree embrittlement, irrespective phosphorus content in film. However, is further suppressed than that which can be attrib...

The resistance to hydrogen embrittlement is of essential importance for steels for vessels for storage of hydrocarbons and depends on the effect of absorbed hydrogen on steel ductility. API tests have shown for the 490 MPa yield stress HSLA steels with the microstructure of ferrite and cementite particles a much greater reduction of area than for the 350 MPa steel with the microstructure of pol...

As part of a multi-scale approach for modeling hydrogen embrittlement in hardened steels we have investigated, employing density functional theory methods, the stability and concentrations of the point defect clusters present in metastable Fe-C-H alloys with vacancies. The defect spectrum is found to be strongly dependent on the local vacancy concentration, and for low hydrogen levels sharp hig...

Hydrogen embrittlement can occur in steels with metastable phases, due to activation of the hydrogen-enhanced decohesion mechanism upon transformation. Meanwhile, recent investigations suggest that alloys undergoing ε-martensite transformation may exhibit resistance hydrogen embrittlement. To better understand effects these alloys, we investigate hydrogen-induced microstructural transformations...