Corrosion inhibition of AA6060 aluminium alloy by lanthanide salts in chloride solution

被引：53

作者：

Allachi, H. ^{[1
]}

Chaouket, F. ^{[1
]}

Draoui, K. ^{[1
]}

机构：

[1] Univ Abdel Malek Essaadi, Fac Sci, Lab Physicochim Interfaces & Environm, Tetouan 93000, Morocco

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 475卷 / 1-2期

关键词：

Aluminium alloy; Corrosion; Inhibition; Rare earths; RARE-EARTH SALTS; ELECTROCHEMICAL RESPONSE; NACL SOLUTIONS; BEHAVIOR; AA5083; INTERMETALLICS; STEEL; EIS;

D O I：

10.1016/j.jallcom.2008.07.017

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：

The electrochemical behaviour of AA6060 in 3.5% NaCl in the absence and presence of some rare earths has been studied by means of polarisation curves and impedance measurements. We find that the natural protective aluminium oxide layer is damaged after nearly 100h of immersion time in the aggressive medium. The current-potential curves show that the corrosion resistance of the alloy is greatly enhanced by addition of lanthanide salts especially the cerium ion. This latter forms, on the alloy surface, a passive layer whose protective properties are reinforced by ageing in solution. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：300 / 303

页数：4

共 30 条

[1] Influence of the cathodic intermetallics distribution on the reproducibility of the electrochemical measurements on AA5083 alloy in NaCl solutions [J].