Hydrogen Embrittlement Evaluation Method And Evaluation Device

Abstract: Provided is a hydrogen embrittlement evaluation method including: a step for applying stress on a steel material test piece so as to reach a triaxial stress value selected in advance from the range of 0.30-0.80; and a step for determining the hydrogen limit amount of the steel material. Further provided is a hydrogen embrittlement evaluation device comprising: a holder for holding a steel material test piece; a stress application means for applying stress to the test piece; a display unit for displaying the displacement amount of the test piece to which stress is applied; and a transmission means for mechanically transmitting the displacement amount of the test piece to the display unit. The stress application means can control the application of stress, such that the displacement amount of the test piece becomes a displacement amount corresponding to a prescribed triaxial stress value.

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