Corrosion inhibition of aluminium alloys by tolyltriazole in chloride solutions

被引：21

作者：

Önal, AN ^{[1
]}

Aksüt, AA ^{[1
]}

机构：

[1] Ankara Univ, Fac Sci, Dept Chem, TR-06100 Ankara, Turkey

来源：

ANTI-CORROSION METHODS AND MATERIALS | 2000年 / 47卷 / 06期

关键词：

alloys; corrosion inhibitors; aluminium; copper;

D O I：

10.1108/00035590010354177

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of tolyltriazole (TTA) on the corrosion of Al-Cu, Al-Si-Cu and Al-Cu-Fe alloys in HCl (pH = 0.5) and NaCl (pH = 6 and 11) respectively at 15 degreesC, 25 degreesC and 35 degreesC has been studied by electrochemical methods. Corrosion potentials, corrosion rates, polarization resistances, inhibition efficiencies and activation energies have been determined. The results have shown that the inhibition efficiencies of TTA changed with pH and temperature. TTA has been adsorbed on the alloys to form Cu(I)-TTA film. TTA was more efficient at pH = 0.5 and 6:than at pH = 11. Increasing the temperature from 15 degreesC to 35 degreesC decreased the inhibition effect of TTA.

引用

页码：339 / 348

页数：10

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