发明名称 |
METHOD OF DETERMINING FATIGUE CRACK LIFETIME IN HIGH-PRESSURE HYDROGEN ENVIRONMENT |
摘要 |
In a method of determining a fatigue crack lifetime of a low-alloy steel material coming in contact with high-pressure hydrogen in a high-pressure hydrogen environment, estimate a fatigue crack acceleration starting point K max T of the low-alloy steel material using a crack-growth threshold stress intensity factor K IH-R obtained through a rising load test on the low-alloy steel material in a high-pressure hydrogen environment. The high-pressure hydrogen environment of the rising load test is a high-pressure hydrogen environment which has the same pressure and atmosphere as in the high-pressure hydrogen environment in which K max T is estimated and in which the test temperature tolerance between both environments is ±5°C. |
申请公布号 |
EP2682740(B1) |
申请公布日期 |
2016.12.21 |
申请号 |
EP20120754698 |
申请日期 |
2012.03.01 |
申请人 |
The Japan Steel Works, Ltd. |
发明人 |
WADA Yoru |
分类号 |
G01N17/00;G01N3/32;G01N33/20 |
主分类号 |
G01N17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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