Corrosion-electrochemical properties of nanocomposites of α-Fe+Fe3C+VC in acidic and alkaline sulfate solutions

被引：2
|
作者：
Syugaev, A. V. [1 ]
Lomayeva, S. F. [1 ]
Lyalina, N. V. [1 ]
Maratkanova, A. N. [1 ]
Reshetnikov, S. M. [2 ]
机构：
[1] Russian Acad Sci, Phys Tech Inst, Ural Branch, Izhevsk 426000, Russia
[2] Udmurt State Univ, Izhevsk 426034, Russia
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2012年 / 48卷 / 03期
关键词：
Electrochemical corrosion - Carbides - Iron compounds - Electrochemical properties - Indium compounds - Anodic oxidation - Vanadium compounds;
D O I：
10.1134/S2070205112030173
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
This work studies corrosion-electrochemical properties of three-phase composites of alpha-Fe+ Fe3C + VC in acidic and alkaline sulfate solutions. Nanosize carbide inclusions are characterized by a high level of activity in the reaction of cathodic hydrogen evolution and result in a high rate of composite dissolution in acidic solutions. The presence of carbides and carbon has a negative effect on passivation of the iron matrix. The resistance of vanadium carbide inclusions to anodic oxidation increases upon a decrease in the amount of carbon in the carbide.
引用
收藏
页码：346 / 351
页数：6
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