Electrochemical behavior and the rate of general corrosion of NiAl intermetallic compound in the unbuffered sodium chloride solutions

被引：20
|
作者：
Rybalka, K. V. [1 ]
Beketaeva, L. A. [1 ]
Bukhan'ko, N. G. [2 ]
Davydov, A. D. [1 ]
机构：
[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow, Russia
来源：
CORROSION SCIENCE | 2011年 / 53卷 / 02期
关键词：
Alloy; Electrochemical calculation; Polarization; Kinetic parameters; TAFEL SLOPES; ALLOY; POLARIZATION; IRON; MICROSTRUCTURE; KINETICS; ACID;
D O I：
10.1016/j.corsci.2010.10.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Highly reproducible Tafel anodic and cathodic plots were obtained on NiAl intermetallic compound in the neutral and nearly neutral unbuffered NaCl solutions. The corrosion potentials and corrosion current densities were determined by the Tafel extrapolation technique at various pH values and concentrations of NaCl. The corrosion current density and Tafel slopes were determined by fitting the equation for the corrosion current density, which involves both anodic and cathodic reactions, to the experimental anodic and cathodic polarization curves in the pre-Tafel region of polarization curves. The results obtained by two methods are in good agreement. (C) 2010 Elsevier Ltd. All rights reserved.
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页码：630 / 636
页数：7
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