矩形波磁场对7A04铝合金凝固组织及性能的影响

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矩形波磁场对7A04铝合金凝固组织及性能的影响
Influences of Rectangular Wave Magnetic Field on Solidification Structure and Properties of 7A04 Aluminum Alloy
2017年37卷第12期页码：1378-1380
纸质出版日期： 2017 ，
DOI： 10.15980/j.tzzz.2017.12.028

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[1]冯艳飞,王军,麻永林,白庆伟,邢淑清,于文霞.矩形波磁场对7A04铝合金凝固组织及性能的影响[J].特种铸造及有色合金,2017,37(12):1378-1380.

Feng Yanfei, Wang Jun, Ma Yonglin, et al. Influences of Rectangular Wave Magnetic Field on Solidification Structure and Properties of 7A04 Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2017,37(12):1378-1380.
[1]冯艳飞,王军,麻永林,白庆伟,邢淑清,于文霞.矩形波磁场对7A04铝合金凝固组织及性能的影响[J].特种铸造及有色合金,2017,37(12):1378-1380. DOI： 10.15980/j.tzzz.2017.12.028.

Feng Yanfei, Wang Jun, Ma Yonglin, et al. Influences of Rectangular Wave Magnetic Field on Solidification Structure and Properties of 7A04 Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2017,37(12):1378-1380. DOI： 10.15980/j.tzzz.2017.12.028.

在7A04铝合金的凝固过程中施加矩形波磁场

分析了不同频率对7A04铝合金凝固组织、晶粒大小及凝固冷却曲线的影响。结果表明

在矩形波磁场作用下

7A04铝合金的凝固组织、晶粒大小和冷却曲线均发生了明显变化。在频率为40Hz时

铸锭组织的晶粒细化效果最佳。与未经磁场处理的相比

不仅增加了过冷度

提高了硬度

其晶粒尺寸也减小了37.1%。

In the process of solidification of 7 A04 aluminum alloy

the rectangular wave magnetic field was applied.The effects of different frequencies on the solidification structure

grain size and solidification cooling curve of 7 A04 aluminum alloy were analyzed.The results show that under the role of rectangular wave field

the solidification structure

grain size and cooling curve of 7 A04 aluminum alloy are changed obviously.When the frequency is 40 Hz

the grain refinement of ingot exhibits desirable.Compared with that without magnetic field treatment

it is not only increased undercooling

but also increased hardness.Meanwhile

the grain size is decreased by 37.1%.

矩形波磁场晶粒细化凝固组织

Rectangular Wave Magnetic FieldGrain RefinementSolidification Structure

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