不锈钢在硫酸中形成的钝化膜的导电性能

材料保护, 1999, 32(7): 1-2. doi: 10.3969/j.issn.1001-1560.1999.07.001

不锈钢在硫酸中形成的钝化膜的导电性能

国玉军 ^1, , 贺春林 ^2, , 才庆魁 ^3, , 宋贵宏 ^4, , 韩文安 ^5,

1.东北大学,沈阳,110006

2.东北大学,沈阳,110006

3.东北大学,沈阳,110006

4.沈阳工业大学,110023

5.中国科学院金属腐蚀与防护研究所,沈阳,110015

关键词：不锈钢 , 钝化膜 , 电导率

Electrical Properties of Passive Film Formed on Stainless steel in Sulphuric Acid

测量了铬镍钼不锈钢在硫酸溶液中形成的钝化膜的导电性能.结果表明:膜为半导体;膜的导电能力随硫酸浓度和电位的增加而降低,膜的电阻及击穿电压随硫酸浓度和电位的增加而增大.同时,也详细研究了膜的成分和厚度.

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