ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2009, Vol. 30 ›› Issue (2): 63-65.

• 组织和性能 • 上一篇    下一篇

409L铁素体不锈钢的表面钝化膜性能

王伟明,程晓波,赵伟锋   

  1. 宝钢股份不锈钢分公司,上海 200431
  • 收稿日期:2008-09-29 出版日期:2009-04-01 发布日期:2022-12-05
  • 作者简介:王伟明(1965-),男,工程师,1986年上海冶金专科学校毕业,铁素体不锈钢产品研发。

Properties of Surface Passivating Film of Ferritic Stainless Steel 409L

Wang Weiming , Cheng Xiaobo , Zhao Weifeng   

  1. Stainless Steel Branch,Baoshan Iron and Steel Co , Shanghai 200431
  • Received:2008-09-29 Published:2009-04-01 Online:2022-12-05

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%HNO3、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。

关键词: 409L铁素不锈钢, 钝化膜, 耐蚀性

Abstract: The properties of surface passivating film of  cold  rolled stainless steel 409L(%:0.017C,11.50Cr,  0. 17Ti) passivated in 20%HNO3 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.

Key words: Feritic Stainless Steel 409L, Passivating Film, Corrosion Resistance