THE ACTIVE PASSIVE TRANSITION IN LOW-ALLOY STEELS IN CARBONATE SOLUTIONS

被引：21

作者：

RILEY, AM ^{[1
]}

SYKES, JM ^{[1
]}

机构：

[1] UNIV OXFORD,DEPT MET & SCI MAT,OXFORD OX1 3PH,ENGLAND

来源：

ELECTROCHIMICA ACTA | 1990年 / 35卷 / 01期

关键词：

D O I：

10.1016/0013-4686(90)85033-J

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A rotating ring-disc electrode has been used to study film growth on low alloy steels in carbonate-bicarbonate solution. Soluble Fe(II) ions have been detected during film growth initiated by potential steps to active, pre-passive and passive potential regions. Film growth in the pre-passive region has two distinct stages. Initial passivation during Stage 1 is followed by reactivation and extensive dissolution during Stage 2. Stage 2 film growth may be attributed to either the transformation of metastable passive film into a poorly protective film or the local break-down of the passive film at bainite laths or prior austenite grain boundaries. © 1990.

引用

页码：35 / 45

页数：11

共 29 条

[1]

Albery W. J., 1971, RING DISC ELECTRODES

[2] TRIBO-ELLIPSOMETRIC STUDY OF REPASSIVATION KINETICS OF A TI 8AL-1MO-1V ALLOY [J].