含Si不锈钢钝化膜的电子能谱分析

金属学报, 1989, 25(3): 146-148.

含Si不锈钢钝化膜的电子能谱分析

冯秀英 , 秦紫瑞 , 李隆盛 , 盛世善 , 刘德经

大连理工大学材料系

大连理工大学

中国科学院大连化学物理所

大连耐酸泵厂

关键词：含硅不锈钢 , passivating film

ELECTRON ENEGRY SPECTRUM ANALYSIS FOR PASSIVATING FILM OF Si-BEARING STAINLESS STEELS

FENG Xiuying , QIN Zirui , LI Longsheng , SHENG Shishan , LIU Dejing Dolian University of Technology Dalian Institute of Chemical Physics

Keywords： Si-bearing stainless steels , 钝化膜

本文利用多功能电子能谱仪,对含Si不锈钢在浓硝酸中浸泡216h后的表面膜进行了研究,结果表明,这层膜主要是Si以SiO_2形式在表面层富集。在强氧化性介质中,含Si的Cr-Ni不锈钢中的Si已成为主要钝化元素,Cr则降至次要地位。

The surface film on Si-bearing stainless steels formed aftersoaking in concentratednitric acid for 216h was investigated by means of electron energy spectrum analysis. It canbe reached from this investigation that Si builds up in the surface film in the form of silica.It plays as a main passivating element in Si-bearing stainless steels in strong oxidizing medium,whereas Cr drops into the second place.

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