EFFECT OF ORGANIC-ACIDS AND BASES ON CATHODIC CORROSION OF ALUMINUM IN CHLORIDE SOLUTIONS

被引：8

作者：

RADOSEVIC, J ^{[1
]}

KLISKIC, M ^{[1
]}

DESPIC, AR ^{[1
]}

机构：

[1] UNIV BELGRADE,INST ELECTROCHEM,BELGRADE,YUGOSLAVIA

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1992年 / 22卷 / 07期

关键词：

Cathodic Corrosion - Cathodic Hydrogen Evolution - Hydroxyl Ions;

D O I：

10.1007/BF01092614

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An attempt was made to inhibit cathodic corrosion of aluminium by the use of organic acids and bases. The corrosion is assumed to be caused by the effect of OH- ions formed from water upon cathodic hydrogen evolution. This is known to result in hydration of the protective oxide film and chemical attack on the metal. Hence, organic substances were expected to inhibit the corrosion by consuming OH ions as well as by an adsorptive effect. The substances tested were HAc, HPro, HBut, HNic, TEA, Pyr, 3-Pic, 4-Pic, 3,5 Lut, 2,6 Lut, 2,4,6 Col, 4- HP, 2,4 AMP, 6,2 AMP, 2 AP and 3 AP. The best effect was achieved by TEA, 2,4 AMP and 2 AP, the potential window for low corrosion rate being extended by several hundred millivolts.

引用

页码：649 / 656

页数：8

共 4 条

[1] INVESTIGATION OF OXIDATION POTENTIALS OF SUBSTANCES ACCUMULATED DURING CATHODIC POLARIZATION OF ALUMINUM [J].