INFLUENCE OF SULFITE ON THE PASSIVATION OF IRON

被引：9

作者：

KUZMANN, E

VARSANYI, ML

VERTES, A

MEISEL, W

机构：

[1] UNIV MAINZ, INST ANORGAN & ANALYT CHEM, W-6500 MAINZ, GERMANY

[2] EOTVOS LORAND UNIV, DEPT PHYS CHEM, H-1364 BUDAPEST 5, HUNGARY

来源：

ELECTROCHIMICA ACTA | 1991年 / 36卷 / 5-6期

关键词：

D O I：

10.1016/0013-4686(91)85293-G

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Mossbauer spectroscopy and electrochemical measurements were used to study the passivation of iron and steels in a sulphite containing solution. The potentiodynamic curves show that passivation occurs at -140 mV potential vs saturated calomel electrode (sce). The main phase of the passive layer was found to be gamma-FeOOH, while FeSO4.H2O on the surface and FeSO3.3H2O inside the layer were identified as minor phases in the case of polarization in a solution of pH 3.37. Only gamma-FeOOH was observed on the surface of samples polarized at pH 6.6.

引用

页码：911 / 913

页数：3