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通过模拟核电高温高压循环水腐蚀疲劳实验,研究了国产核级不锈钢的环境疲劳损伤行为与失效机制;评价了影响不锈钢高温高压水疲劳寿命的环境和载荷等因素,建立了一个植入环境损伤效应的疲劳设计模型,给出了便于工程应用的核级不锈钢的环境疲劳设计曲线.
By simulating the fatigue experiment of cyclic corrosion of high temperature and high pressure circulating water in nuclear power plant, the environmental fatigue damage behavior and failure mechanism of domestic nuclear grade stainless steel were studied. Factors such as the environment and load affecting the fatigue life of stainless steel under high temperature and pressure were evaluated and an environmental damage effect Fatigue design model of nuclear-grade stainless steel for engineering application is given.