Protection against corrosion in marine environments of AA5083 Al-Mg alloy by lanthanide chlorides

被引：78
|
作者：
Bethencourt, M [1 ]
Botana, FJ [1 ]
Cauqui, MA [1 ]
Marcos, M [1 ]
Rodriguez, MA [1 ]
RodriguezIzquierdo, JM [1 ]
机构：
[1] UNIV CADIZ,FAC CIENCIAS MAR,DEPT CIENCIA MAT & INGN MET & QUIM INORGAN,CADIZ,SPAIN
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1997年 / 250卷 / 1-2期
关键词：
aluminium alloys; uniform corrosion; pitting corrosion; inhibitors; lanthanide chlorides;
D O I：
10.1016/S0925-8388(96)02826-5
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 addition of small concentrations of lanthanide chlorides to 3.5% NaCl aerated aqueous solutions inhibits uniform and pitting corrosion processes of AA5083 Al-Mg alloy. Full immersion tests combined with different electrochemical techniques have been used in order to determine the protection degree and the inhibition character supplied by the rare earth salts. Additional Scanning Electron Microscopy and Energy Dispersive Spectroscopy data have allowed us to establish some features of the inhibition mechanism.
引用
收藏
页码：455 / 460
页数：6
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