Properties of Surface Passivating Film of Ferritic Stainless Steel 409L

王伟明; 程晓波; 赵伟锋

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Properties of Surface Passivating Film of Ferritic Stainless Steel 409L

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- Properties of Surface Passivating Film of Ferritic Stainless Steel 409L
- Special Steel Vol. 30, Issue 2, Pages: 63-65(2009)
- 作者机构：
  
  宝钢股份不锈钢分公司,上海,200431
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：29 September 2008，
  
  Online First：05 December 2022，
  
  Published：05 December 2009
- 稿件说明：
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王伟明, 程晓波, 赵伟锋. Properties of Surface Passivating Film of Ferritic Stainless Steel 409L[J]. Special Steel, 2009, 30(2): 63-65.
DOI：

王伟明, 程晓波, 赵伟锋. Properties of Surface Passivating Film of Ferritic Stainless Steel 409L[J]. Special Steel, 2009, 30(2): 63-65. DOI：

摘要

用辉光光谱仪(GDS)、扫描电镜(SEM)和X-射线光电子能谱仪(XPS)分析了经20%HNO

、58℃0～60 min钝化的409L冷轧不锈钢(%:0.017C、11.50Cr、0.17Ti)表面钝化膜的性能

并通过盐雾试验得出钝化膜厚度对耐蚀性的影响。结果表明

当钝化时间为10 min时

钝化膜厚度达到最大值48 nm;当钝化时间为3 min时

钝化膜厚度为40 nm

试样表面氮化物完全被钝化膜覆盖

膜中Cr的氧化物含量最多

耐蚀性最好。

Abstract

The properties of surface passivating film of cold rolled stainless steel 409L(%:0.017C

11.50Cr

0. 17Ti) passivated in 20%HNO

solution at 58 ℃ for 0～60 min have been analyzed by using glow discharge emission spectrometry (GDS)

scanning electron microscope(SEM)and X-ray photoelectron spectroscopy(XPS)

and the effect of passivating film thickness on its corrosion resistance has been got by salt spray test.Results showed that with passivating for 10 min

the passivating film thickness was up to maximum 48 nm;and with passivating for 3 min

the passivating film thickness was 40 nm;the surface nitrides of sample were completely covered by passivating film and the content of chromium oxide was most with best corrosion resistance.

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