摘要
综述了核电结构材料腐蚀疲劳裂纹扩展的研究现状及环境、力学、材料等因素的影响规律,讨论了高温高压水环境中考虑环境效应的疲劳裂纹扩展模型,提出了当前核电结构材料高温高压水腐蚀疲劳裂纹扩展机制及模型研究面临的主要问题及未来可能的研究方向。
Structural materials in nuclear power plants are subjected to corrosion fatigue(CF) during long-term service in high temperature pressurized water. The mechanism and data base of CF crack growth are essential to the design, operation and life management of nuclear power plants. This paper reviewed the present research status on CF crack growth behavior. The effect of environmental, mechanical and material’s factors were introduced, while the fatigue crack growth model was discussed by taking the environment effect in high temperature pressurized water into consideration. Challenges and trends for research of fatigue crack growth mechanism and model for structural materials in nuclear power plants were also briefly addressed.
作者
张兹瑜
吴欣强
韩恩厚
柯伟
ZHANG Ziyu;WU Xinqiang;HAN En-Hou;KE Wei(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)
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2022年第1期9-15,共7页
Journal of Chinese Society For Corrosion and Protection
基金
中核集团青年英才项目及国家科技重大专项(2017ZX06002003-004-002)。
关键词
核电结构材料
高温高压水
腐蚀疲劳
裂纹扩展机理
裂纹扩展模型
structural materials in nuclear power plant
high temperature pressurized water
corrosion fatigue
crack growth mechanism
crack growth model