室温高圧水素雰囲気下におけるSUS304の引張挙動
2003 年 67 巻 4 号 p. 157-160
詳細
2003 年 67 巻 4 号 p. 157-160
High-pressure hydrogen storage system is required for fuel cell vehicle. The effect of hydrogen pressure on the behavior of materials needs to be examined. Tensile properties of type 304 stainless steel were measured using a specially designed pressure vessel up to 39.3 MPa. Ultimate tensile strength, elongation and reduction of area of type 304 stainless steel decreased with increasing the hydrogen pressure up to 39.3 MPa. Crack nucleation and growth are considered. The effect of strain-induced martensite on hydrogen embrittlement is discussed.
