压水堆一回路加锌对800合金氧化膜成分影响的XPS分析
XPS Analysis of Effect of Zinc Addition on Oxide Film on Alloy 800
摘 要
模拟压水堆一回路水环境, 进行了800合金材料在注0 μg/kg和150 μg/kg两种锌浓度下腐蚀1 500 h的试验, 采用X射线光电子能谱(XPS)对其表面氧化膜成分进行了深度分析。结果表明, 在两种溶液中, 试样表面都形成了外富镍内富铬的氧化膜, 氧化膜中铁的含量较低, 加锌腐蚀1 500 h后试样氧化膜中, 锌的初始原子百分数含量为17%, 对内层氧化膜中的Mn2+的置换作用较明显。
加锌
800合金
氧化膜
XPS分析
PWR
zinc addition
alloy 800
oxide film
XPS analysis
Abstract
The effects of zinc addition on the composition of the oxide film on alloy 800 were investigated in simulated pressurized water reactor(PWR) primary water. After exposed in solutions with zinc concentration of 0 and 150 μg/kg for 1 500 h, the oxide films developed on the surface of specimens were analyzed using X-ray photoelectron spectroscopy (XPS). Alloy 800 surface formed a duplex oxide film composed of a Ni-riched outer layer and a Cr-riched inner layer, and Fe-poor in two layers in both solutions. In Zn-injected solution, the original atomic concentration of Zn was 17%, and Zn replaced the Mn2+ in the oxide film more obviously.
中图分类号 TG174
所属栏目 试验研究
基金项目 大型先进压水堆核电站重大专项(2011ZX06004010)
收稿日期 2013/5/15
修改稿日期
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备注张乐福(1967-),副教授,博士,主要研究核电材料腐蚀性能,
引用该论文: DUAN Zhen-gang,ZHANG Le-fu,JIANG Su-qing,XU Xue-lian,SHI Xiu-qiang. XPS Analysis of Effect of Zinc Addition on Oxide Film on Alloy 800[J]. Corrosion & Protection, 2014, 35(3): 224
被引情况:
【1】何 琨,王 理, "316NG不锈钢在高纯水环境中的腐蚀行为",腐蚀与防护 37, 631-634(2016)
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参考文献
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【3】MACHET A,GALTAYRIES A,MARCUS P,et al. XPS study of oxides formed on nickel-base alloys in high-temperature and high-pressure water[J]. Surface and interface Analysis,2002,34(1):197-200.
【4】姜苏青,张乐福. 锌对镍基690合金均匀腐蚀影响的XPS分析[J]. 原子能科学技术,2012,3:268-271.
【5】王力,张乐福,石秀强. 压水堆条件下锌对690合金表面氧化膜的影响[J]. 腐蚀与防护,2012,12:1042-1044+1090.
【6】郦晓慧,王俭秋,韩恩厚,等. 核级商用690合金和800合金在模拟压水堆核电站一回路高温高压水中的腐蚀行为研究[J]. 金属学报,2012(8):941-950.
【7】STELLWAG B. The mechanism of oxide film formation on austenitic stainless steels in high temperature water[J]. Corrosion Science,1998,40:337-370.
【8】ROBERTSON J. The mechanism of high temperature aqueous corrosion of stainless steels[J]. Corrosion Science,1991,32(4):443-465.
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