Z3CN20.09M不锈钢热老化-低周疲劳性能研究

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英文篇名：Study on Thermal Aging-Low Cycle Fatigue Performance of Z3CN20.09M Stainless Steel 作者：周高斌 ; 王小彬 ; 吴璇 ; 于敦吉 ; 张喆 ; 陈海波 ; 张亚斌 ; 马姝丽 英文作者：ZHOU Gaobin;WANG Xiaobin;WU Xuan;YU Dunji;ZHANG Zhe;CHEN Haibo;ZHANG Yabin;MA Shuli;Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China;School of Chemical Engineering and Technology, Tianjin University; 关键词：不锈钢 ; 热老化 ; 高温 ; 低周疲劳 ; 疲劳寿命预测 英文关键词：stainless steel;;heat aging;;high temperature;;low cycle fatigue;;fatigue life prediction 中文刊名：SJGY 英文刊名：Hot Working Technology 机构：中国核动力研究设计院核反应堆系统设计国家级重点实验室;天津大学化工学院; 出版日期：2019-04-28 13:58 出版单位：热加工工艺 年：2019 期：v.48;No.510 语种：中文; 页：SJGY201908057 页数：4 CN：08 ISSN：61-1133/TG 分类号：227-229+233

摘要

研究了Z3CN20.09M不锈钢在热老化1000、6000、10000和30000 h后在350℃下的低周疲劳性能。结果表明,应变幅值较低(0.3%、0.4%)的条件下,热老化时长对Z3CN20.09M不锈钢的低周疲劳寿命影响不是十分显著,但在应变幅值较高(0.6%、0.8%)的条件下,热老化时长对疲劳寿命的影响较为明显。采用Basquin-Manson-Coffin模型对Z3CN20.09M不锈钢在350℃下的低周疲劳寿命进行预测,疲劳寿命在两倍寿命分散带内,可适用于350℃下Z3CN20.09M不锈钢的低周疲劳寿命预测。
        The low cycle fatigue behavior of Z3 CN20.09 M stainless steel at 350 ℃ after thermal aging of 1000 h, 6000 h,10000 h and 30000 h was studied. The results show that, under the condition of low amplitude(0.3% and 0.4%), the effect of thermal aging time on the low cycle fatigue life of Z3 CN20. 09 M stainless steel is not very significant. But under the condition of high strain amplitude(0.6% and 0.8%), the effect of thermal aging time on the fatigue life is obvious. The Basquin-Manson-Coffin model is used to predict the low cycle fatigue life of Z3 CN20.09 M stainless steel at 350 C, the fatigue life is within the double life dispersion zone, which can be used to predict the low cycle fatigue life of Z3 CN20.09 M stainless steel at 350 ℃.

引文

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