王伟,王玲,周细应,李忠文,刘继华,刘艳红

• 1:上海工程技术大学材料工程学院

摘要(Abstract)：

反应堆压力容器(RPV)模拟钢样品经880℃加热0.5 h水淬,再经过660℃加热10 h调质处理,随后在340~400℃进行不同时间的时效处理,测量了维氏硬度,并采用原子探针层析技术(atom probe tomography,APT)研究了富Cu团簇的析出过程。APT分析结果表明,RPV模拟钢淬火后经400℃时效100 h的样品中析出了富Cu团簇,团簇的数量密度为1.69×1023m-3;模拟钢在调质处理后,经400℃时效1000 h时效处理后才析出了富Cu团簇,团簇的数量密度为6×1022m-3。研究结果表明,同调质处理后时效相比,模拟钢淬火后直接时效可以更好地模拟RPV钢经中子辐照后富Cu团簇的析出。

关键词(KeyWords)： 反应堆压力容器模拟钢;原子探针层析技术;时效处理;富Cu团簇

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51271111)

作者(Author): 王伟,王玲,周细应,李忠文,刘继华,刘艳红

DOI: 10.13289/j.issn.1009-6264.2013.12.020

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