Electrochemical behaviour and corrosion of Mg-Y alloys

被引：194
|
作者：
Sudholz, A. D. [1 ]
Gusieva, K. [1 ]
Chen, X. B. [2 ]
Muddle, B. C. [1 ]
Gibson, M. A. [3 ]
Birbilis, N. [1 ,2 ]
机构：
[1] Monash Univ, ARC Ctr Excellence Design Light Met, Dept Mat Engn, Clayton, Vic 3800, Australia
[2] Monash Univ, CAST CRC, Dept Mat Engn, Clayton, Vic 3800, Australia
[3] CSIRO Proc Sci & Engn, Clayton S MDC, Clayton, Vic 3169, Australia
来源：
CORROSION SCIENCE | 2011年 / 53卷 / 06期
基金：
澳大利亚研究理事会;
关键词：
Magnesium; Intermetallics; Polarization; SEM; RARE EARTH ALLOYS; MAGNESIUM ALLOYS; INTERMETALLIC PHASES; MICROSTRUCTURE; SOLUBILITY; STRENGTH; ELEMENTS; YTTRIUM; WE43; AZ91;
D O I：
10.1016/j.corsci.2011.03.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Corrosion of cast magnesium-yttrium (Y) alloys with systematic V additions up to a nominal 18 wt.% were studied. Corrosion performance was related to the quantitative alloy microstructure and found to increase significantly with the level of alloying and volume fraction of the Mg-Y intermetallic present. In the alloy microstructures. Mg(24)Y(5) was principally formed: the electrochemistry of which was characterised using the electrochemical microcell method. Electrochemical testing revealed the fundamental corrosion behaviour of Mg-Y alloys and elucidated the corrosion mechanisms at play. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2277 / 2282
页数：6
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