Effects of Alloy Composition and Heat Treatment on Electrical Conductivity of Al-Si-Mg Alloy

Hu Zhongchao; Yu Hui

doi:10.15980/j.tzzz.2018.09.028

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Effects of Alloy Composition and Heat Treatment on Electrical Conductivity of Al-Si-Mg Alloy
Vol. 38, Issue 9, Pages: 1031-1033(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.09.028

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[1]胡中潮,于慧.合金成分及热处理工艺对Al-Si-Mg合金电导率的影响[J].特种铸造及有色合金,2018,38(09):1031-1033.

Hu Zhongchao, Yu Hui. Effects of Alloy Composition and Heat Treatment on Electrical Conductivity of Al-Si-Mg Alloy. [J]. Special Casting & Nonferrous Alloys 38(9):1031-1033(2018)
[1]胡中潮,于慧.合金成分及热处理工艺对Al-Si-Mg合金电导率的影响[J].特种铸造及有色合金,2018,38(09):1031-1033. DOI： 10.15980/j.tzzz.2018.09.028.

Hu Zhongchao, Yu Hui. Effects of Alloy Composition and Heat Treatment on Electrical Conductivity of Al-Si-Mg Alloy. [J]. Special Casting & Nonferrous Alloys 38(9):1031-1033(2018) DOI： 10.15980/j.tzzz.2018.09.028.

摘要

研究了合金化元素Si、Mg、Ti等对Al-Si-Mg铝合金电导率的影响。研究表明

Si含量从6.0%增加到7.5%

电导率由20.8 MS/m下降到19.2 MS/m;Mg含量从0.16%增加到0.45%时

合金的电导率由19.3 MS/m下降到18.8 MS/m;晶粒细化元素Ti在0

.12%范围内变化时

合金的电导率由20.5 MS/m下降到19.2 MS/m。随着时效温度升高和时效时间的延长

合金的电导率增加

硬度降低。其中在220℃下时效保温6h

合金的电导率达到23.6 MS/m

硬度（HB）为76

满足导体对合金性能的要求。

Abstract

The effects of Si

Ti elements content on the electrical conductivity of Al-Si-Mg alloy were investigated.The results indicate that with the content of Si increased from 6.0% to 7.5%

the conductivity is decreased from 20.8 MS/m to 19.2 MS/m.When the content of Mg is increased from0.16% to 0.45%

the electric conductivity of the alloy is decreased from 19.3 MS/m to 18.8 MS/m.When the grain refinement element Ti is changed between 0

.12%

the electric conductivity of the alloy is decreased from 20.5 MS/m to 19.2 MS/m.The experimental research on the heat treatment parameters show that the electrical conductivity and hardness are decreased with the increase of aging temperature and aging time.At 220 ℃for 6 h

the conductivity reaches 23.6 MS/m and the hardness is 76 HB

meeting the requirements of conductors for the alloy properties.