摘要
在不加锌和加锌浓度为50ppb的两种模拟压水堆一回路水质环境下,对镍基690合金的腐蚀行为进行了研究。经过腐蚀浸泡1 500h后,用X射线光电子能谱(XPS)对其表面氧化膜结构进行深度分析。结果表明,Zn对内层氧化膜内的NiCr2O4和FeCr2O4中的Ni和Fe起到了置换作用,形成了ZnCr2O4。
The effects of zinc addition on behaviors of general corrosion behaviors of nickel-base alloy 690 were investigated in simulated PWR primary water. After exposed in solutions with zinc concentration of 0 and 50 ppb for 1 500 h, oxide films developed on surface of specimens were analyzed by using XPS. The result shows that Zn partly replaces Ni and Fe in NiCr2 04 and FeCrz 04 in the inner oxide layer and forms ZnCrz 04.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2012年第3期268-271,共4页
Atomic Energy Science and Technology
基金
国家科技重大专项资助项目(2008ZX06004010
2011ZX06004017)
关键词
镍基690合金
加锌
氧化膜
均匀腐蚀
XPS
nickel-base alloy 690
zinc injection
oxide film
general corrosion
XPS
