Effect of Natural Ageing on Precipitation of Al-Zn-Mg-Cu-Li Alloys

被引：0
|
作者：
Zhao, Zhongkui [1 ]
Li, Changlong [1 ]
Sun, Qingzhou [1 ]
Zhang, Puqing [1 ]
Wang, Guiqing [1 ]
Chen, Changqi [2 ]
机构：
[1] Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250101, Peoples R China
[2] Behav Unit, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
ADVANCES IN BUILDING MATERIALS, PTS 1-3 | 2011年 / 168-170卷
关键词：
Al-Zn-Mg-Cu-Li Alloys; Natural Ageing; Hardness; Precipitation; LITHIUM;
D O I：
10.4028/www.scientific.net/AMR.168-170.2503
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Effect of natural ageing on the precipitation of Al-5.6Zn-1.9Mg-1.6Cu- 1.1Li-0.24Cr (in wt.%) alloys were investigated. The ageing processes, microstructure and hardness of the alloys were investigated by Vickers hardness and transmission electron microscopy (TEM). The results show that natural ageing makes the exothermic temperature range of the Al-Zn-Mg-Cu-Li alloys to shift to lower temperature. Natural ageing for 48h and followed by ageing at 120 degrees C, precipitates in the matrix of Al-Zn-Mg-Cu-Li alloys are sparse, which lowers the age hardness of the Al-Zn-Mg-Cu-Li alloys.
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收藏
页码：2503 / +
页数：2
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