时效强化X-750镍基合金低周疲劳性能计算及寿命预测  

Low-cycle Fatigue Properties Calculation and Life Prediction of Aging Strengthened X-750 Nickel-based alloy

作　　者：屈华鹏[1] 张宏亮[2] 王留兵[2] 冯翰秋 吴冰洁 陈海涛[1] 郎宇平[1] 宋丹戎[2] 许斌[2] QU Huapeng;ZHANG Hongliang;WANG Liubing;FENG Hanqiu;WU Bingjie;CHEN Haitao;LANG Yuping;SONG Danrong;XU Bin(Institute for Special Steels,Central Iron and Steel Research Institute,Beijing 100081,China;Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu 610200,China)

机构地区：[1]钢铁研究总院特殊钢研究所,北京100081 [2]中国核动力研究设计院核反应堆系统设计技术重点实验室,四川成都610200

出　　处：《热加工工艺》2023年第8期136-140,共5页Hot Working Technology

基　　金：科技部“十三五”重点研发计划项目(2016YFB0300202);“973”国家重点基础研究发展计划项目(2014CB643306)。

摘　　要：研究了核反应堆堆内弹簧用0Cr15Ni70Ti3AlNb(X-750)镍基合金材料时效强化状态下在室温至650℃范围内的低周疲劳性能,并采用Manson-Coffin和郑修麟本构关系式对疲劳性能数据进行了计算和分析。结果表明:与M-C经典关系式相比,在室温、350、500和650℃条件下,郑修麟关系式获得了更高的拟合一致性,采用该关系式对X-750合金疲劳寿命的预测精度相对更高。The low cycle fatigue properties of 0Cr15Ni70Ti3AlNb(X-750)nickel-based alloy materials for reactor spring under aging hardening condition from room temperature to 650℃were studied.Manson-Coffin and Zheng Xiulin constitutive equations were used to calculate and analyze the fatigue performance data.The results show that,compared with the M-C classical relational expression,under the conditions of room temperature,350℃,500℃ and 650℃,the Zheng Xiulin relational expression obtains higher fitting consistency.The predicting precision of the fatigue life of X-750 alloy by using zhengxiulin relation is higher.

关 键 词：X-750镍基合金 高温低周疲劳性能 M-C模型 郑修麟模型 

分 类 号：TG156.92[金属学及工艺—热处理] TG111.8[金属学及工艺—金属学]