Effect of melt overheating treatment on the microstructure and mechanical properties of Zn-Al alloy

被引：3
|
作者：
Lu, Xianke [1 ,2 ,5 ]
Xiao, Shengjie [1 ]
He, Wenquan [3 ]
Wang, Junjie [3 ]
Ma, Yiming [3 ,4 ]
Zhang, Henghua [4 ]
机构：
[1] Anhui Polytech Univ, Sch Mat Sci & Engn, Wuhu 241000, Peoples R China
[2] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[3] Xiangguan Alloy Res Inst, Suzhou 215400, Peoples R China
[4] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
[5] Wanfeng Auto Holding Grp Ltd, Shaoxing 312500, Peoples R China
来源：
VACUUM | 2022年 / 201卷
关键词：
Zinc-aluminum alloy; Overheating treatment; Microstructure; Fracture mechanism;
D O I：
10.1016/j.vacuum.2022.111071
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study focused on the effect of overheating treatment on the microstructure and tensile mechanical property of zinc-aluminum alloy. Ingots with designed composition were manufactured by melting pure metals and cast at different temperatures from 500 degrees C to 650 degrees C. Microstructure, strength and fracture mechanism were studied and their relationships with overheating temperature were analyzed. Dendrite size decreased with increasing overheating temperature and turned to equiaxed crystal at 650 degrees C. The yield stress, ultimate tensile stress and elongation increased by 16%, 31% and 163%, respectively after overheating treatment. It was also found that with the increase of overheating temperature, the brittle fracture mechanism gradually turns to a mixed fracture mechanism.
引用
收藏
页数：4
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