Effects of cold deformations on strength and ductility of extruded Al-Cu-Mg-Si alloy

被引：2
|
作者：
Lan, Jian [1 ,2 ,3 ]
Han, Zhen [1 ]
Hua, Lin [2 ,3 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan, Peoples R China
[2] Wuhan Univ Technol, Hubei Key Lab Adv Technol Automot Components, Wuhan, Peoples R China
[3] Wuhan Univ Technol, Hubei Engn Res Ctr Green & Precis Mat Forming, Wuhan, Peoples R China
来源：
MATERIALS LETTERS | 2021年 / 300卷
关键词：
Metals and alloys; Metal forming and shaping; Microstructure; FRACTURE-TOUGHNESS; HEAT-TREATMENT; MICROSTRUCTURES;
D O I：
10.1016/j.matlet.2021.130188
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To improve strength and ductility, a series of experiments were designed and carried out to systematically and quantitatively analyze extruded Al-Cu-Mg-Si alloy without cold deformation (E0%) and with 4% cold stretching/ compression (ET4%/EC4%) prior to artificial ageing. The main aim is to investigate the different effects of cold stretching and compression on strength and ductility of extruded alloy. Compared to E0%, the EC4% alloy had finer phase 0, higher dislocation density, larger contact angle of Cu-rich phases so that had higher strength and lower ductility. Compared to EC4% alloy, the ET4% alloy had more proportion of phase 0 ', smaller contact angle of Cu-rich phases, which made ET4% alloy higher strength and higher ductility.
引用
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页数：4
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