ANODIC BEHAVIOR AND PITTING CORROSION OF PLAIN CARBON-STEEL IN NAOH SOLUTIONS CONTAINING CL- IONS

被引：3
|
作者：
ELHALEEM, SMA [1 ]
ELREHIM, SSA [1 ]
SHALABY, MS [1 ]
机构：
[1] AIN SHAMS UNIV, DEPT CHEM, CAIRO, EGYPT
来源：
SURFACE & COATINGS TECHNOLOGY | 1986年 / 27卷 / 02期
关键词：
CORROSION PROTECTION - Inhibitors - STARCH - Applications - STEEL CORROSION - Pitting;
D O I：
10.1016/0257-8972(86)90127-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The anodic behavior of hot-rolled and hardened carbon steel was investigated potentiodynamically in NaOH solutions with and without NaCl as a pitting corrodent. The pitting corrosion potential of the steel electrodes shifts in the negative direction with increasing concentration of the Cl** minus ions, following sigmoidal curves. Increasing the tempering temperature of the hardened steel from 125 to 600 degree C enhances the susceptibility to pitting corrosion owing to sequential structure changes. Addition of soluble starch shifts the pitting corrosion potential in the noble direction denoting inhibition of the pitting attack.
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页码：167 / 173
页数：7
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