A Survey of Sensitization in 5xxx Series Aluminum Alloys

被引：115
作者：
Zhang, R. [1 ]
Knight, S. P. [1 ]
Holtz, R. L. [2 ]
Goswami, R. [2 ]
Davies, C. H. J. [3 ]
Birbilis, N. [1 ]
机构：
[1] Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia
[2] Naval Res Lab, Washington, DC 20375 USA
[3] Monash Univ, Dept Mech & Aerosp Engn, Clayton, Vic 3800, Australia
来源：
CORROSION | 2016年 / 72卷 / 02期
关键词：
5xxx series; aluminum alloys; intergranular corrosion; sensitization; STRESS-CORROSION CRACKING; GRAIN-BOUNDARY SEGREGATION; BETA-PHASE PRECIPITATION; AL-MG ALLOY; INTERGRANULAR CORROSION; MECHANICAL-PROPERTIES; LOCALIZED CORROSION; AA5083; ALLOY; MN ALLOY; SUSCEPTIBILITY;
D O I：
10.5006/1787
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The 5xxx series (Al-Mg-based) aluminum alloys suffer from intergranular corrosion and intergranular stress corrosion cracking when the alloy has become "sensitized." Sensitization refers to insidious precipitation of beta phase (Mg2Al3), which is problematic when present at grain boundaries. The beta phase is electrochemically active and may preferentially dissolve. This paper reviews the relevant works that have documented the degree of sensitization for various 5xxx series alloys, providing a holistic overview of the issue, along with attention to the bulk composition, heat treatment, and microstructure.
引用
收藏
页码：144 / 159
页数：16
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