METASTABLE PITTING OF STAINLESS-STEEL

被引：445

作者：

FRANKEL, GS ^{[1
]}

STOCKERT, L ^{[1
]}

HUNKELER, F ^{[1
]}

BOEHNI, H ^{[1
]}

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,INST MAT CHEM & CORROS,YORKTOWN HTS,NY 10598

来源：

CORROSION | 1987年 / 43卷 / 07期

关键词：

CORROSION - Pitting - IRON AND STEEL METALLOGRAPHY - STEEL CORROSION - Electrochemical;

D O I：

10.5006/1.3583880

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Current transients resulting from metastable pitting events on stainless steel at potentials below the pitting potential are studied. Metastable pits are covered during growth and exhibit a constant current density. Rupture of the cover during metastable growth leads to repassivation of the pit. If a salt film precipitates on the pit surface before the cover ruptures, pit growth is stabilized. The kinetic factors hindering the replacement of a passive film by a salt film are discussed.

引用

页码：429 / 436

页数：8

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