Metastable Pitting of Stainless Steel

被引：0
|
作者：
Frankel, G. S. [1 ]
Stockert, L. [2 ]
Hunkeler, F. [2 ]
Boehni, H. [2 ]
机构：
[1] IBM Corp, TJ Watson Res Ctr, POB 218, Yorktown Hts, NY 10598 USA
[2] Swiss Fed Inst Technol, Inst Mat Chem & Corros, CH-8093 Zurich, Switzerland
来源：
CORROSION | 2019年 / 75卷 / 02期
关键词：
CORROSION PITS; REPASSIVATION; IRON; KINETICS; NICKEL; GROWTH; FILMS;
D O I：
暂无
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
收藏
页码：129 / 136
页数：8
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