Mechanism of pit nucleation by electrical breakdown of the passive film

被引：172

作者：

Szklarska-Smialowska, Z ^{[1
]}

机构：

[1] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA

来源：

CORROSION SCIENCE | 2002年 / 44卷 / 05期

关键词：

D O I：

10.1016/S0010-938X(01)00113-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on the similarity between the electrical breakdown of insulators and the pitting breakdown, the mechanism of the breakdown of passive film of transition metals in a chloride solution is described. It is proposed that nucleation of pits occurs by electrical breakdown, probably by the Zener mechanism. Creation of a very high current locally destroys the passive film and causes the dissolution of the metal forming metastable or stable pits. (C) 2002 Published by Elsevier Science Ltd.

引用

页码：1143 / 1149

页数：7

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