Effects of Pouring Temperature and Electromagnetic Stirring on Microstructure of Semi-Solid 6061 Al Alloy

Liu Zheng; Zhou Xiangyu; Zhu Tao

doi:10.15980/j.tzzz.2015.02.001

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Effects of Pouring Temperature and Electromagnetic Stirring on Microstructure of Semi-Solid 6061 Al Alloy
Vol. 35, Issue 2, Pages: 113-118(2015)
Published： 2015 ，
DOI： 10.15980/j.tzzz.2015.02.001

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[1]刘政,周翔宇,朱涛.浇注温度和电磁搅拌对半固态6061铝合金组织的影响[J].特种铸造及有色合金,2015,35(02):113-118.

Liu Zheng, Zhou Xiangyu, Zhu Tao. Effects of Pouring Temperature and Electromagnetic Stirring on Microstructure of Semi-Solid 6061 Al Alloy. [J]. Special Casting & Nonferrous Alloys 35(2):113-118(2015)
[1]刘政,周翔宇,朱涛.浇注温度和电磁搅拌对半固态6061铝合金组织的影响[J].特种铸造及有色合金,2015,35(02):113-118. DOI： 10.15980/j.tzzz.2015.02.001.

Liu Zheng, Zhou Xiangyu, Zhu Tao. Effects of Pouring Temperature and Electromagnetic Stirring on Microstructure of Semi-Solid 6061 Al Alloy. [J]. Special Casting & Nonferrous Alloys 35(2):113-118(2015) DOI： 10.15980/j.tzzz.2015.02.001.

摘要

应用低过热度浇注和电磁搅拌技术制备了半固态6061铝合金浆料

研究了浇注温度和电磁搅拌对半固态6061铝合金微观组织形貌的影响。结果表明

浇注温度对半固态6061铝合金的凝固组织影响很大

半固态6061合金在660℃下浇注的晶粒最为细小;电磁搅拌可以有效地改善半固态6061铝合金的凝固组织形貌和晶粒尺寸。当电磁频率为30 Hz且搅拌15s时

凝固组织的形貌及尺寸最佳。通过试验获得了制备半固态6061铝合金浆料合适的工艺参数。

Abstract

The semi-solid 6061 Al alloy slurry was prepared by low superheat pouring and electromagnetic stirring

and effects of pouring temperature and electromagnetic stirring on microstructure of semi-solid6061 Al alloy were investigated.The results indicate that the pouring temperature plays a dominant role in the microstructure in the alloy

in which the fine grain in the semi-solid alloy can be obtained with pouring at 660 ℃.Morphology and size of grain of microstructure in the semi-solid alloy are effectively improved by electromagnetic stirring.The desirable morphology and size of microstructure in the semisolid alloy are presented with electromagnetic frequency of 30 Hz and stirring time of 15 s.The rational processing parameters for preparing slurry of semi-solid 6061 Al alloy were presented.