AN ELECTROCHEMICAL INVESTIGATION OF THE DEVELOPMENT OF PHOSPHATE CONVERSION COATINGS

被引：13

作者：

BRETHERTON, N

THOMPSON, GE

TURGOOSE, S

机构：

[1] Corrosion and Protection Centre, UMIST, Manchester, M60 1QD

来源：

CORROSION SCIENCE | 1993年 / 35卷 / 5-8期

关键词：

D O I：

10.1016/0010-938X(93)90351-G

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Potential and corrosion rate monitoring have been used to follow the growth of phosphate conversion coatings on mild steel, with impedance spectroscopy being utilized to examine the complete coatings. Significant residual metal corrosion rates arc observed after coating completion. Impedance spectroscopy indicates similar surface processes after coating completion in both normal and accelerated baths. Analysis of the data indicates that only one electrode process is contributing to the low frequency response of the system, rather than the more general case of two, anodic and cathodic, parallel processes.

引用

页码：1297 / 1303

页数：7