ELECTROCRYSTALLIZATION OF PYRITE AND MARCASITE ON STAINLESS-STEEL SURFACES

被引：22

作者：

SHOESMITH, DW

RUMMERY, TE

BAILEY, MG

OWEN, DG

机构：

[1] Atomic Energy of Canada Limited, Whiteshell Nuclear Research Establishment, Research Chemistry Branch, Pinawa, Manitoba

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1979年 / 126卷 / 06期

关键词：

carbon steel; corrosion; electrodeposition; hydrogen sulfide; pyrrhotite;

D O I：

10.1149/1.2129193

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The crystallization of pyrite and marcasite on stainless steel surfaces has been studied electrochemically in aqueous H2S. Soluble ferrous ion was supplied by an adjacent corroding carbon steel surface and polysulfide ions were generated electrochemically at the stainless steel surface. Crystallization was promoted by the application of an anodic current to the stainless steel and inhibited by the application of a cathodic current. The relative amounts of the two phases were dependent on the relative concentrations of ferrous and polysulfide ions at the stainless steel surface. Pyrite formation was favored when ferrous ions were in excess, whereas marcasite was favored at increased polysulfide concentrations. © 1979, The Electrochemical Society, Inc. All rights reserved.

引用

页码：911 / 919

页数：9

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