Evaluation of Hydrogen Embrittlement Susceptibility for Sheet Steels

摘要

Hydrogen embrittlement property of high-strength steels has widely been evaluated for wire and bolt products. But there are not many evaluation methods of hydrogen embrittlement for steel sheets. In this work, a method for sheet products has been established. Using this method, effects of materials (tensile strength), applied stress and pre-strain on hydrogen embrittlement property can reasonably be evaluated for high-strength steel sheets. Environmental embrittlement evaluation in cyclic corrosion test was also carried out for comparison with the results from the new method, which were in good agreement.