The effects of copper (Cu) or zinc (Zn) on fluidity of A357 alloy

被引：5
|
作者：
Mao, Guoling [1 ]
Liu, Dongyang [1 ]
Gao, Wenli [1 ]
Liu, Shanguang [2 ]
Zhong, Liwei [2 ]
机构：
[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Peoples R China
[2] Beijing Inst Aeronaut Mat, Beijing 100097, Peoples R China
来源：
MATERIALS LETTERS | 2021年 / 304卷
关键词：
A357; alloy; Fluidity; Cu; Zn; Metals and alloys; Thermal analysis; AL; SC;
D O I：
10.1016/j.matlet.2021.130733
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Excellent fluidity is an essential condition for Al-Si-Mg alloy (like A357) to make large thin-walled and complex structure castings, but there is no research about the effects of Cu or Zn on the fluidity of Al-Si-Mg alloys. Under sand casting conditions, the effects of Cu or Zn on the fluidity of A357 were investigated through spiral fluidity resin sand molds, DSC, polarizing microscope and SEM. The results showed that with increase of Cu or Zn content, the solidification temperature range (T) of A357 alloy increased, and the fluidity decreased. With Cu or Zn addition, the grain size of A357 alloy increased, but the coarse grain is not the main reason for the fluidity to deteriorate.
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页数：3
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