摘要
通过模拟压水堆一回路水环境,对304奥氏体不锈钢在320℃含Zn分别为60和120μg/kg两种高温溶液中进行了600 h的腐蚀实验,对腐蚀后的试样表面进行了X射线光电子能谱分析(XPS)分析。结果表明,试样在含锌溶液中形成了主要化学成分为Zn(Cr,Fe)2O4的致密氧化膜;提高溶液中Zn的浓度,试样的腐蚀速率降低,氧化膜中Fe含量增多。
The effect of Zn addition on the composition of oxide films formed on 304 austenitic stainless steels was studied in high-temperature and high-pressured waters aiming to simulate the primary water of pressurized water reactor(PWR). After exposed in waters with 60 and 120 μg/kg Zn respectively at 320 ℃ for 600 h, the formed oxide films on 304 stainless steel were analyzed by using X- ray photoelectron spectroscopy(XPS). The results show that the compact oxide film formed on the steel immersed in solution containing Zn consists mainly of Zn(Cr, Fe)2O4. With the increase of Zn concentration, weight gain rate decreases, while the atomic concentration of Fe in the oxide film increases.
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2014年第3期237-240,共4页
Corrosion Science and Protection Technology
基金
大型先进压水堆核电站重大专项(2011ZX06004010)资助
关键词
ZN
304奥氏体不锈钢
压水堆
氧化膜
XPS
Zn,304 austenitic stainless steel,pressurized water reactor(PWR),oxide film,XPS
