摘要
在核电厂二回路中,流动加速腐蚀是造成管道减薄和开裂的主要原因。根据工程经验和实验室数据,添加一定量的Cr可以大大降低流动加速腐蚀速率。P11和WB36CN1两种控Cr材料已经在核电厂建设过程中广泛采用,本文通过核电厂二回路试验平台研究了这两种材料在单相流和气液两相流中的耐流动加速腐蚀性能。结果表明,无论单相流还是气液两相流条件下,P11和WB36CN1两种材料的流动腐蚀速率均远低于普通碳钢的流动加速腐蚀速率,P11的耐流动加速腐蚀性能要好于WB36CN1。
In the second loop of nuclear power plants,flow accelerated corrosion is the main cause of thinning and cracking.According to engineering experience and laboratory data,adding a certain amount of Cr can greatly reduce the flow accelerated corrosion rate.P11 and WB36CN1 are widely used in the construction of nuclear power plants.In this paper,the flow accelerated corrosion resistance of these two materials in single-phase flow and gas-liquid two-phase flow has been studied.The results show that the flow accelerated corrosion rates of P11 and WB36CN1 are much lower than common carbon steel,and the flow accelerated corrosion resistance of P11 is better than that of WB36CN1.
作者
刘忠
刘洪群
LIU Zhong;LIU Hong-qun(Suzhou Nuclear Power Research Institute,Suzhou 215004,China)
出处
《全面腐蚀控制》
2019年第8期88-91,共4页
Total Corrosion Control
