交变磁场对ZL205A合金块状偏析的影响

罗贵敏; 陈舸; 芦刚; 严青松; 郑强强

doi:10.15980/j.tzzz.2018.03.024

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交变磁场对ZL205A合金块状偏析的影响
Effects of Alternating Magnetic Field Intensity on Massive Segregation of ZL205A Alloy
2018年38卷第3期页码：319-323
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.03.024

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[1]罗贵敏,陈舸,芦刚,严青松,郑强强.交变磁场对ZL205A合金块状偏析的影响[J].特种铸造及有色合金,2018,38(03):319-323.

Luo Guimin, Chen Ge, Lu Gang, et al. Effects of Alternating Magnetic Field Intensity on Massive Segregation of ZL205A Alloy[J]. Special Casting & Nonferrous Alloys, 2018,38(3):319-323.
[1]罗贵敏,陈舸,芦刚,严青松,郑强强.交变磁场对ZL205A合金块状偏析的影响[J].特种铸造及有色合金,2018,38(03):319-323. DOI： 10.15980/j.tzzz.2018.03.024.

Luo Guimin, Chen Ge, Lu Gang, et al. Effects of Alternating Magnetic Field Intensity on Massive Segregation of ZL205A Alloy[J]. Special Casting & Nonferrous Alloys, 2018,38(3):319-323. DOI： 10.15980/j.tzzz.2018.03.024.

摘要

采用自制的交变电磁场凝固装置

研究了交变磁场对ZL205A合金块状偏析组织和晶粒尺寸的影响

分析了交变磁场对ZL205A合金块状偏析组织的作用机理。结果表明

交变磁场不仅可以细化晶粒

也可有效减少晶粒内部的块状偏析组织。当励磁电流为5A时

平均晶粒尺寸可降至74.6μm

比未施加磁场时下降了25.37%

ZL205A合金中微量元素的块状偏析缺陷得到明显改善。

Abstract

The effects of alternating magnetic field current intensity on massive segregation and grain size in ZL205 Aalloy castings were investigated

and the mechanism of alternating magnetic field on massive segregation structure in ZL205 Aalloy was analyzed by using self-made alternating electromagnetic field solidification device.The results show that the alternating magnetic field can not only refine the grains but also reduce effectively the massive segregation structure in the grains.When the excitation current intensity is 5 A

the average grain size can be reduced to 74.6μm

decreased by 25.37% compared with that of ones without magnetic field

and the massive segregation of trace elements in ZL205 Aalloy is improved obviously.