Corrosion of aluminium and aluminium alloy in ethylene glycol-water mixtures

被引：28

作者：

Zaharieva, J. ^{[1
]}

Milanova, M. ^{[1
]}

Mitov, M. ^{[2
]}

Lutov, L. ^{[1
]}

Manev, S. ^{[2
]}

Todorovsky, D. ^{[1
]}

机构：

[1] Univ Sofia, Fac Chem, Sofia 1164, Bulgaria

[2] South West Univ, Fac Math & Nat Sci, Blagoevgrad 2700, Bulgaria

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 470卷 / 1-2期

关键词：

Corrosion; Metals and alloys; Scanning electron microscopy (SEM); X-ray diffraction; HYDROCHLORIC-ACID; PITTING CORROSION; ZINC PIGMENTS; MILD-STEEL; INHIBITION; BEHAVIOR; ELECTROLYTES;

D O I：

10.1016/j.jallcom.2008.02.079

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Samples of pure aluminium and aluminium, alloy were heated at 150 kPa and 130 degrees C in ethylene glycol (EG)-water mixture (volume ratio 1:1) for 172 h (8-12 h heating, 12-16 h pause). The corrosion of the metals was characterised by the transfer of Al into solution, changes in the surface morphology of the samples and their electrochemical behaviour. Formation of a white crystalline aluminium-organic precipitate was found during the heating of metals and some of its characteristics were determined. The effect of the addition of glycolic, citric and sebacic acid to the EG-water mixture on the metal corrosion behaviour was investigated. A significant corrosive action of glycolic acid and a protective effect of sebacic acid were found. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：397 / 403

页数：7

共 26 条

[1] THE ACID CORROSION OF ALUMINUM IN WATER ORGANIC-SOLVENT MIXTURES [J].