发明名称 |
Method of mitigating stress corrosion cracking of metals in high-temperature water by control of crack tip pH |
摘要 |
A method for mitigating initiation or propagation of a crack in a surface of a metal component in a boiling water reactor. The method includes the step of injecting a solution or suspension of a pH-adjusting compound into the bulk water of the reactor. The compound has the property of changing the pH of high-temperature water inside the crack from a value outside a predetermined pH range (namely, pH 6.0 to 8.0) to a value within the predetermined pH range without causing any significant change of the bulk water pH. The growth rate of the crack when the crack pH is outside the predetermined pH range is greater than the growth rate of the crack when the crack pH is within the predetermined pH range.
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申请公布号 |
US5673297(A) |
申请公布日期 |
1997.09.30 |
申请号 |
US19950509280 |
申请日期 |
1995.07.31 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
ANDRESEN, PETER LOUIS |
分类号 |
G21D1/00;C23F11/18;C23F15/00;G21C13/087;G21C17/02;G21C17/022;G21C19/28;G21D3/08;(IPC1-7):G21C9/00 |
主分类号 |
G21D1/00 |
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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