首页>
外国专利>
Method for reducing stress corrosion cracking of metals in high-temperature water by controlling the pH at the crack tip
Method for reducing stress corrosion cracking of metals in high-temperature water by controlling the pH at the crack tip
展开▼
机译:通过控制裂纹尖端的pH值来减少高温水中金属的应力腐蚀开裂的方法
展开▼
页面导航
摘要
著录项
相似文献
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. IMAGE
展开▼