| 含铌铁素体不锈钢的电化学行为和钝化膜中各元素的分布 |
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| 引用本文： | 金镇源.含铌铁素体不锈钢的电化学行为和钝化膜中各元素的分布[J].中国腐蚀与防护学报,1985,5(1):46-53. |
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| 作者姓名： | 金镇源 |
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| 作者单位： | 铁道部科学研究院金属及化学研究所 |
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| 摘 要： | 铁素体不锈钢在0.5M 硫酸水溶液中的阳极极化曲线出现两个活性溶解电流峰。相同成份的含铌铁素体不锈钢只有一个活性溶解电流峰,这说明铌在合金中能起到防止敏化作用。对阳极氧化钝化膜进行了俄歇电子能谱的表面分析。结果表明钝化膜中铬的富集强度随钝化电位的升高而提高,并且含铌铁素体不锈钢钝化膜中铬的富集强度高于其他成份相同的铁素体不锈钢。
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| 收稿时间： | 1985-02-25 |
THE ELECTROCHEMICAL BEHAVIOUR AND COMPOSITION DEPTH-PROFILES OF THE PASSIVE FILM OF FERRITIC STAINLESS STEEL |
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| Jin Zhenyuan.THE ELECTROCHEMICAL BEHAVIOUR AND COMPOSITION DEPTH-PROFILES OF THE PASSIVE FILM OF FERRITIC STAINLESS STEEL[J].Journal of Chinese Society For Corrosion and Protection,1985,5(1):46-53. |
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| Authors: | Jin Zhenyuan |
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| Abstract: | The anodic polarization curve of ferritic stainless steel in 0.5M sulfuric acid solution at 298°K has two active disolution current peaks,but that of ferritic stainless steel With niobium has only one active disolution current peak,it is suggested that niobium prevents the sensitization of alloy. The composition of the passive film formed by means of potentiostatic oxidation in depth-profiles has been analysed by means of argon ion sputter- etching and Auger electron spectroscopy.Chromium was enriched in the passive film.The degree of Cr-enrichment in the passive film increased with an increasing anodic potential of film formation,and the degree of Cr-enrich- ment of the passive film of stainless steel with niobium is higher than that with- out it. |
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