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Aging problems and life evaluation for the key metallic components in PWR nuclear power plant
Author(s): 
Pages: 53-58
Year: Issue:  5
Journal: ELECTRIC POWER

Keyword:  压水堆核电厂关键金属部件老化寿命评估;
Abstract: 介绍压水堆核电厂的关键金属部件及其重要度分级,对关键金属部件在压水堆运行环境下典型的老化机理及相关的寿命评估技术进行详细论述.主要的老化机理有反应堆压力容器的辐照脆化、铸造不锈钢的热老化、蒸汽发生器传热管的应力腐蚀开裂和金属疲劳.介绍国外压水堆核电厂关键金属部件老化和寿命评估的基础研究及新进展,并结合我国国情提出了核电厂老化和寿命评估研究的建议:应重视材料在压水堆运行环境下的老化机理研究,同时应开展大尺寸试验,发展寿命评估技术.
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