DEVELOPMENT OF STAINLESS ALUMINUM

被引:70
作者
MANSFELD, F
WANG, V
SHIH, H
机构
[1] Corrosion and Environmental Effects Laboratory, Department of Materials Science and Engineering, University of Southern California, Los Angeles
关键词
D O I
10.1149/1.2085513
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A process for surface modification of Al-based materials is described which involves immersion in boiling Ce(NO3)3 and CeCl3, followed by anodic polarization in a molybdate solution. Each of these three steps is carried out for 2 h. Al 6061 treated in this manner did not show any signs of uniform or localized corrosion during immersion in 0.5N NaCl for 60 days. A sample with a scratch in the modified surface also did not show any corrosion after 25 days in NaCl. Since this surface modification process produces exceptional corrosion resistance, it should be considered as a candidate for the replacement of chromate conversion coatings.
引用
收藏
页码:L74 / L75
页数:2
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