Influence of deformation ageing treatment on microstructure and properties of aluminum alloy 2618

被引:57
|
作者
Wang, Jianhua [1 ]
Yi, Danqing [2 ]
Su, Xuping [1 ]
Yin, Fucheng [1 ]
机构
[1] Xiangtan Univ, Key Lab Mat Design & Preparat Technol Hunan Prov, Xiangtan 411105, Hunan, Peoples R China
[2] Cent S Univ, Inst Mat Sci & Engn, Changsha 410083, Peoples R China
关键词
alloy; 2618; deformation ageing treatment; microstructure; tensile properties; hardness;
D O I
10.1016/j.matchar.2007.08.007
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effects of deformation ageing treatment (DAT) on the microstructure and properties of aluminum alloy 2618 were investigated. The alloy was subjected to deformation ageing treatment which included solution treating at 535 degrees C quenching into water at room-temperature, cold rolling (10%) and further ageing to peak hardness level at 200 degrees C. The electron microscopic studies revealed that the treatment affects the ageing characteristics and the coarsening of ageing phase (SI) at elevated-temperature. The dislocation-precipitate tangles substructure couldn't be found in alloy 2618. The tensile and hardness tests showed that deformation-ageing treatment causes a significant improvement in tensile strength and hardness to alloy 2618 at room- and elevated-temperature. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码:965 / 968
页数:4
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