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中国腐蚀与防护学报  2026, Vol. 46 Issue (5): 1613-1618     CSTR: 32134.14.1005.4537.2025.338      DOI: 10.11902/1005.4537.2025.338
  研究报告 本期目录 | 过刊浏览 |
压水堆核电站不锈钢焊缝材料腐蚀疲劳模型
刘夏城1, 邹建荣2, 高良文3, 周龙4,5, 谭季波4, 吴欣强4, 张兹瑜4()
1.三门核电有限公司 台州 317100
2.上海核工程研究设计院股份有限公司 上海 200233
3.国核示范电站有限责任公司 荣成 264300
4.中国科学院金属研究所 中国科学院核用材料与安全评价重点实验室 辽宁省核电材料安全与评价技术重点实验室 沈阳 110016
5.中国科学技术大学材料科学与工程学院 沈阳 110016
Corrosion Fatigue Model for Stainless Steel Weld Seam Used in Pressurized Water Reactor Nuclear Power Plants
LIU Xiacheng1, ZOU Jianrong2, GAO Liangwen3, ZHOU Long4,5, TAN Jibo4, WU Xinqiang4, ZHANG Ziyu4()
1.Sanmen Nuclear Power, Taizhou 317100, China
2.Shanghai Nuclear Engineering Research and Design Institute, Shanghai 200233, China
3.State Nuclear Power Demonstration Plant, Rongcheng 264300, China
4.CAS Key Laboratory of Nuclear Materials and Safety Assessment, Liaoning Key Laboratory for Safety and Assessment Technique of Nuclear Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
5.School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
引用本文:

刘夏城, 邹建荣, 高良文, 周龙, 谭季波, 吴欣强, 张兹瑜. 压水堆核电站不锈钢焊缝材料腐蚀疲劳模型[J]. 中国腐蚀与防护学报, 2026, 46(5): 1613-1618.
Xiacheng LIU, Jianrong ZOU, Liangwen GAO, Long ZHOU, Jibo TAN, Xinqiang WU, Ziyu ZHANG. Corrosion Fatigue Model for Stainless Steel Weld Seam Used in Pressurized Water Reactor Nuclear Power Plants[J]. Journal of Chinese Society for Corrosion and protection, 2026, 46(5): 1613-1618.

全文: PDF(1790 KB)   HTML
摘要: 

高温高压水环境中的腐蚀疲劳数据是压水堆核电站疲劳设计、运行及寿命评估的重要依据,现有腐蚀疲劳模型主要基于母材数据建立,本文基于不锈钢焊缝材料在空气环境及高温高压水环境中的疲劳寿命数据,建立了基于Langer方程的平均寿命曲线,分析了应变速率及温度对不锈钢焊缝材料腐蚀疲劳寿命的影响规律,将环境促进疲劳效应植入疲劳设计模型中,针对不锈钢焊接材料建立了包含应变速率及温度的腐蚀疲劳模型。

关键词 : 压水堆,  不锈钢焊缝,  高温高压水,  腐蚀疲劳,  模型    
Abstract:

Corrosion fatigue data are the basis for fatigue design, operation, and life assessment of nuclear power plants. Based on the corrosion fatigue data of stainless steel weld seam in air and high-temperature pressurized-water, the mean curve of fatigue life in the form of the Langer equation was established. The effect of strain rate and water temperature on the corrosion fatigue life of stainless steel weld seaam was analyzed, whilst, the environmentally assisted fatigue effect was considered in the fatigue model. Then a design fatigue model for stainless steel weld seam that considers strain rate and water temperature was established.

Key words: pressurized water reactor    stainless steel weld seam    high-temperature pressurized water    corrosion fatigue    model
收稿日期: 2025-10-30      32134.14.1005.4537.2025.338
ZTFLH:  TG174  
基金资助:中国科学院战略性先导科技专项(XDA0410000);中核集团青年英才项目及中核集团领创科研项目
通讯作者: 张兹瑜,E-mail:zyzhang14b@imr.ac.cn,研究方向为核电材料环境损伤
Corresponding author: ZHANG Ziyu, E-mail: zyzhang14b@imr.ac.cn
作者简介: 刘夏城,男,1985年生,本科,高级工程师
图1  不锈钢焊缝材料空气环境疲劳数据及最佳拟合方程[6,12,21,37,38]
图2  应变速率与Fen的关系[6,12,21]
图3  温度与Fen的关系
图4  采用本文建立模型获得的预测寿命与实验寿命对比
图5  采用ANL模型获得的高温高压水环境预测寿命与实际寿命的对比
图6  采用JSME模型获得的高温高压水环境预测寿命与实际寿命的对比
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