CORROSION IN MOLTEN NA2CO3-K2CO3 AT 800-PERCENT-C .2. THE INFLUENCE OF WATER-VAPOR ON IRON CORROSION

被引：7

作者：

AZZI, M

RAMEAU, JJ

机构：

[1] Centre de Recherche en Electrochimie Minerale et Genie des Procedes (U.A. au C.N.R.S. n 1212), E.N.S.E.E.G., Domaine Universitaire, 38402 Saint-Martin D'Heres

来源：

CORROSION SCIENCE | 1990年 / 30卷 / 4-5期

关键词：

D O I：

10.1016/0010-938X(90)90049-B

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By potentiometric and electrochemical impedance measurements, the influence of water vapor on iron corrosion was determined in molten Na2CO3-K2CO3 (58-42 mol%) at 800°C. Surface observation by means of scanning electron microscope showed general attack without the formation of any deposit. When the water partial pressure increased, the corrosion rate increased. Chronopotentiometric and voltammetric experiments showed that the corroding agent was dissolved water. Corrosion resulted from the two simultaneous reactions: 2H2O+2e-→H2+2OH- and: Fe→Fe2++2e-. © 1990.

引用

页码：439 / +

页数：1

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