用XPS分析喷丸处理后800合金在强碱溶液中的腐蚀产物

1.南京大学物理系,南京,210093

2.南京大学物理系,南京,210093

3.南京大学物理系,南京,210093

4.南京大学物理系,南京,210093

5.上海核工程研究设计院,上海,200233

6.上海核工程研究设计院,上海,200233

基金项目: 江苏省自然科学基金(BK-97041) 国家自然科学基金(19835050)

THE CHARACTERIZATION OF FILM ON ALLOY 800 AFTER SHOT PEENING IN AQUEOUS ALKALI BY USING XPS

对不同喷丸工艺的铁镍基800合金在300℃、50%NaOH溶液中的应力腐蚀行为进行了比较,研究了喷丸改善应力腐蚀的原因.用AES、XPS等测量手段分析了腐蚀3000 h仍未发生应力开裂的样品表面生成的多层惰性膜的化学成分及价态组成,并探讨了苛性碱中多层腐蚀膜生成的原因.

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