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中国腐蚀与防护学报  2004, Vol. 24 Issue (4): 213-217     
  研究报告 本期目录 | 过刊浏览 |
用XPS分析喷丸处理后800合金在强碱溶液中的腐蚀产物
朱小明
南京大学物理系2000硕 210093
The Characterization of Film on Alloy 800 After Shot Peening in Aqueous Alkali by Using XPS
Xiaoming Zhu
南京大学物理系2000硕 210093
全文: PDF(173 KB)  
摘要: 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3000h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。
关键词 喷丸合金800应力腐蚀XPS谱学    
Abstract:The autoclave experiments were applied to investigate stress corrosion cracking(SCC) behaviors of alloy 800 under different shot peening conditions in 300℃ ,50mass% NaOH solution. The effect of shot peening was discussed either. The final passive films developed on the alloys which have no SCC after 3000 hours in solution were studied by Auger electro spectroscopy and X-ray photoelectron spectroscopy. The results showed that shot peeing creates a compressive residual stress over the alloy surface and could protect against stress corrosion cracking effectively. XPS results showed that the films formed on alloy surface have a trilayered structure in which the topmost layer is composed of pure nickel, followed by an outer part of carbolic grains and an inner part of Cr2O3 and a little nickel oxide. Because the topmost nickel disappearedin protective layer and the circumstance became execrable the corrosion proceeds.
Key wordsshot peening    alloy 800    stress corrosion    X-ray photoelectron spectroscopy
收稿日期: 2001-10-21     
ZTFLH:  TG174.44  
通讯作者: 朱小明   
Corresponding author: Xiaoming Zhu   

引用本文:

朱小明 . 用XPS分析喷丸处理后800合金在强碱溶液中的腐蚀产物[J]. 中国腐蚀与防护学报, 2004, 24(4): 213-217 .
Xiaoming Zhu. The Characterization of Film on Alloy 800 After Shot Peening in Aqueous Alkali by Using XPS. J Chin Soc Corr Pro, 2004, 24(4): 213-217 .

链接本文:

https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y2004/V24/I4/213

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