转棒诱导形核法制备Al-23Si-4.4Fe-3Cu-1Mg合金半固态浆料

李永坤; 李璐; 周荣锋; 王修昌; 蒋业华; 卢德宏; 周荣

doi:10.15980/j.tzzz.2016.01.009

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转棒诱导形核法制备Al-23Si-4.4Fe-3Cu-1Mg合金半固态浆料
Preparation of Semi-solid Al-23Si-4.4Fe-3Cu-1Mg Alloy Slurry by Rotating-rod Induced Nucleation
2016年36卷第1期页码：31-35
纸质出版日期： 2016 ，
DOI： 10.15980/j.tzzz.2016.01.009

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[1]李永坤,李璐,周荣锋,王修昌,蒋业华,卢德宏,周荣.转棒诱导形核法制备Al-23Si-4.4Fe-3Cu-1Mg合金半固态浆料[J].特种铸造及有色合金,2016,36(01):31-35.

Li Yongkun, Li Lu, Zhou Rongfeng, et al. Preparation of Semi-solid Al-23Si-4.4Fe-3Cu-1Mg Alloy Slurry by Rotating-rod Induced Nucleation[J]. Special Casting & Nonferrous Alloys, 2016,36(1):31-35.
[1]李永坤,李璐,周荣锋,王修昌,蒋业华,卢德宏,周荣.转棒诱导形核法制备Al-23Si-4.4Fe-3Cu-1Mg合金半固态浆料[J].特种铸造及有色合金,2016,36(01):31-35. DOI： 10.15980/j.tzzz.2016.01.009.

Li Yongkun, Li Lu, Zhou Rongfeng, et al. Preparation of Semi-solid Al-23Si-4.4Fe-3Cu-1Mg Alloy Slurry by Rotating-rod Induced Nucleation[J]. Special Casting & Nonferrous Alloys, 2016,36(1):31-35. DOI： 10.15980/j.tzzz.2016.01.009.

摘要

采用转棒诱导形核法制备Al-23Si-4.4Fe-3Cu-1Mg铝合金半固态浆料

探讨熔体浇注温度及转棒转速对Al-23Si-4.4Fe-3Cu-1Mg合金半固态坯料金相组织的影响及原因。结果表明

当浇注温度为830℃

转棒转速为500r/min时细化效果最好

此时初生Si和富Fe相均匀地分布于基体中

二者的等效直径及形状因子分别为（35±2）μm、0.76和（50±2）μm、0.51。

Abstract

Fabrication of semi-solid slurry of Al-23Si-4.4Fe-3Cu-1Mg alloy was carried out by rotatingrod induced nucleation（RRIN）.Effects of pouring temperature and rotating speed on the microstructure of semi-solid Al-23Si-4.4Fe-3Cu-1Mg aluminum alloy slurry were analyzed.The results indicate that with pouring temperature of 785 ℃ and rotating speed of 500r/min

the fine sized primary Si and Ferich phase can be observed with uniform distribution in the matrix.The equivalent diameter and shape factors of the primary Si particles and the Fe-rich phase can reach 35±2μm

50±2μm and 0.76

0.51

respectively.