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FATIGUE STRAIN-LIFE BEHAVIOR OF AUSTENITIC STAINLESS STEELS IN PRESSURIZED WATER REACTOR ENVIRONMENTS

机译:奥氏体不锈钢在加压水反应器环境中的疲劳应变寿命行为

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摘要

A statistical model for austenitic stainless steels for predicting the effect of pressurized water reactor environments on fatigue life for a range of temperatures and strain rates is developed based on analysis of available material data. The compiled fatigue curve data include not only results from America (Keller (1971), Conway (1975), Hale (1977), and Argonne National Laboratory (1999-2005)), but also from Europe (Solin (2006), Le Duff (2008-2010), De Baglion (2011, 2012), Huin (2013) ...) and Japan (Kanasaki (1997)). Only fatigue data from polished specimens of wrought material tested under strain control were considered; hollow specimens were not treated herein. The fatigue life correction factor used in this paper was defined as the ratio of life in water at 300 °C (reference conditions) to that in water at service conditions. The model is recommended for predicting fatigue lives that are 10~3-10~5 cycles.
机译:基于可用材料数据的分析,开发了一种用于预测加压水反应器环境对一系列温度和应变率疲劳寿命的抗疲劳寿命的统计模型。编译的疲劳曲线数据不仅包括来自美国的结果(Keller(1971),Conway(1975),Hale(1977)和Argonne National Laboratory(1999-2005)),而且来自欧洲(Solin(2006),Le Duff (2008-2010),De Baglion(2011,2012),惠民(2013)......)和日本(Kanasaki(1997))。只考虑了在应变控制下测试的锻造材料的抛光标本的疲劳数据;本文未处理空心标本。本文中使用的疲劳寿命校正因子被定义为300℃(参考条件)在水中的水中的寿命与服务条件下的寿命比。建议模型预测10〜3-10〜5周期的疲劳生活。

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