Improving Corrosion Resistance of Stainless Steel by Yttrium Addition: An AES Analysis
来源期刊：JOURNAL OF RARE EARTHS2000年第3期
论文作者：MA Yan-hong HUANG Yuan-wei
Key words：rare earths; yttrium; high silicon stainless steel; passive film;
Abstract: The influence of Y addition on the distribution of element concentrations in the passive film of high silicon stainless steel formed in 93% H2SO4 was comparatively studied by using auger electron spectroscopy (AES). The results show that 0.2%Y addition increases the SiO2 proportion in the passive film of stainless steel so that the formation of SiO2 enriched passive film from silicon in the alloy is brought into full play.
MA Yan-hong1，HUANG Yuan-wei2
(1.Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China;
2.Shanghai Institute of Metallurgy, Chinese Academy of Sciences, Shanghai 200050, China)
Abstract:The influence of Y addition on the distribution of element concentrations in the passive film of high silicon stainless steel formed in 93% H2SO4 was comparatively studied by using auger electron spectroscopy (AES). The results show that 0.2%Y addition increases the SiO2 proportion in the passive film of stainless steel so that the formation of SiO2 enriched passive film from silicon in the alloy is brought into full play.
Key words:rare earths; yttrium; high silicon stainless steel; passive film;
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