Method for Estimating Hydrogen Absorption Behavior, Device for Estimating Hydrogen Absorption Behavior, and Program for Estimating Hydrogen Absorption Behavior

A hydrogen penetration behavior estimation device that estimates penetration behavior of hydrogen that penetrates steel, the hydrogen penetration behavior estimation device comprising:

• a first measurement data input unit adapted to input first measurement data concerning variation of hydrogen content with time up until hydrogen content in steel-to-be-estimated reaches saturation when measurements are taken by applying such stress to the steel that no fracture due to hydrogen embrittlement occurs;
• a second measurement data input unit adapted to input second measurement data concerning variation of hydrogen content in the steel-to-be-estimated with time up until the steel fractures when measurements are taken by applying such stress to the steel that fracture due to hydrogen embrittlement occurs;
• a ratio calculation unit adapted to read the first measurement data and the second measurement data out of a storage unit, calculate increases in hydrogen contents in an initial stage of measurement using the first measurement data and the second measurement data, respectively, and calculate a ratio of the increase in the hydrogen content according to the second measurement data to the increase in the hydrogen content according to the first measurement data;
• and
• a saturated hydrogen content calculation unit adapted to multiply saturated hydrogen content based on the first measurement data by the ratio and designate a resulting product as saturated hydrogen content of the steel-to-be-estimated, the saturated hydrogen content being reached upon application of such stress that fracture due to hydrogen embrittlement occurs.