Corrosion release behavior of Alloy 690 in high-temperature water was investigated under the conditions of injected Zn concentrations of 0 ppb, 10 ppb and 50 ppb. A protective oxide film composed of Zn(Fe_xCr_1-x)₂O₄ and Cr₂O₃ was formed with Zn injection, resulting in a better corrosion resistance. In comparison with the Zn-free condition, the corrosion release rate under the Zn-injection conditions was smaller. The corrosion release inhibiting factors were 1.7 and 1.9 under the conditions of 10 ppb and 50 ppb Zn-injection respectively. A foreseen application of the corrosion and corrosion release rates has been proposed and discussed.

研究了在注入锌浓度为 0 ppb、10 ppb 和 50 ppb 的条件下合金 690 在高温水中的腐蚀释放行为。Zn注入形成了由Zn(Fe _x Cr _1-x ) ₂ O ₄和Cr ₂ O ₃组成的保护性氧化膜，具有更好的耐腐蚀性。与无锌条件相比，注锌条件下的腐蚀释放速率较小。在注锌量为 10 ppb 和 50 ppb 的条件下，缓蚀释放因子分别为 1.7 和 1.9。已经提出并讨论了腐蚀和腐蚀释放速率的可预见应用。