Effect of Post Weld Heat Treatment on Toughness of Base Metal of Nuclear Reactor Pressure Vessel Steel A533B

被引：0
|
作者：
LI Yun-liang 1
2.Research Institute
机构：
来源：
Journal of Iron and Steel Research(International) | 2011年 / 18卷 / S1期
关键词：
nuclear power plant; pressure vessel; fracture toughness; precipitation phases;
D O I：
10.13228/j.boyuan.issn1006-706x.2011.s1.090
中图分类号：
TG441.8 [焊后处理];
学科分类号：
080201 ; 080503 ;
摘要：
The effect of post weld heat treatment (PWHT) on the toughness of nuclear reactor pressure vessel steel was investigated.Fracture toughness (K JC) and Charpy impact toughness (KVC) were obtained at different temperatures for quenched-tempered (QT) and PWHT A533B steel plates,respectively.The results show that PWHT increases the ductile-brittle transition temperature,and decreases the K JC and KVC.By using SEM and Electron probe micro-analyzer (EPMA),it is found that the size of the precipitation phases increased and molybdenum precipitated during PWHT respectively.The relationship between the size of the precipitation phases and the fracture toughness are analyzed and the influence of microstructure is also briefly discussed.
引用
收藏
页码：412 / 416
页数：5
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