发明名称 |
Method of judging hydrogen embrittlement cracking of material used in high-temperature, high-pressure hydrogen environment |
摘要 |
Using information about the position, orientation, and shape of a crack appeared in a judged material and information about the structure of the judged material as parameters, the stress intensity factor KI of the crack is found. Based on the stress intensity factor KI, hydrogen embrittlement cracking of the judged material is judged. The crack growth rate and possibility of brittle fracture can be judged by comparing the stress intensity factor KI with the critical stress intensity factor KIH for crack initiation or the critical stress intensity factor KIC-H for brittle fracture about the temper embrittled steel which absorbs approximately 2.0 ppm hydrogen.
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申请公布号 |
US2005028882(A1) |
申请公布日期 |
2005.02.10 |
申请号 |
US20040880616 |
申请日期 |
2004.07.01 |
申请人 |
THE JAPAN STEEL WORKS, LTD. |
发明人 |
WADA YORU;HASEGAWA TATSUO;KAYANO RINZO;INOUE HIROKAZU |
分类号 |
G01N17/00;F16L9/14;G01N3/00;G01N33/20;(IPC1-7):F16L9/14 |
主分类号 |
G01N17/00 |
代理机构 |
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