电磁场对水平连铸Al-1Si合金线材组织和性能的影响

高学鹏; 郄喜望; 吴亚萍; 李廷举

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电磁场对水平连铸Al-1Si合金线材组织和性能的影响
Effects of Electromagnetic Field on Microstructure and Properties of Al-1Si Alloy Wire in Horizontal Continuous Casting
2007年第6期页码：462-464
纸质出版日期： 2007 ，
DOI：

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[1]高学鹏,郄喜望,吴亚萍,李廷举.电磁场对水平连铸Al-1Si合金线材组织和性能的影响[J].特种铸造及有色合金,2007(06):462-464+408.

Gao Xuepeng, Qie Xiwang, Wu Yaping, et al. Effects of Electromagnetic Field on Microstructure and Properties of Al-1Si Alloy Wire in Horizontal Continuous Casting[J]. Special Casting & Nonferrous Alloys, 2007,(6):462-464.
[1]高学鹏,郄喜望,吴亚萍,李廷举.电磁场对水平连铸Al-1Si合金线材组织和性能的影响[J].特种铸造及有色合金,2007(06):462-464+408. DOI：

Gao Xuepeng, Qie Xiwang, Wu Yaping, et al. Effects of Electromagnetic Field on Microstructure and Properties of Al-1Si Alloy Wire in Horizontal Continuous Casting[J]. Special Casting & Nonferrous Alloys, 2007,(6):462-464. DOI：

摘要

研究了工频电磁场对水平连铸10mm的Al-1Si合金键合线铸坯表面质量、凝固组织、溶质偏析和力学性能的影响。试验结果表明

在工频电磁场作用下

铸坯的表面质量得到了改善

当励磁电流达到100A时

表面粗糙度由未施加电磁场时的40μm降为20μm;凝固组织得到了细化

晶粒尺寸均匀;溶质偏析得到了抑制

Si元素在α（Al）基体中的固溶度及其分布的均匀性得到提高;并且力学性能得到了改善

抗拉强度和伸长率分别提高了16·5%和36%。

Abstract

Effects of industrial frequency electromagnetic field on surface quality

solidification structure

solute segregation and mechanical properties of Al-1Si alloy wire billets with 10 mm in diameters in horizontal continuous castings have been investigated.The results show that the surface quality of the billets can be greatly improved

where the surface roughness is decreased from 40 μm to 20 μm with exciting current of 100 A.The microstructure of the Al-1Si alloy can be refined with uniform grain size.The solid solution degree of Si element and its distributed uniformity in α（Al） matrix can be improved as a result of restraining solute segregation.Based on above reasons

the tensile strength and elongation of the Al-1Si alloy wire billets are increased by 16.5% and 36% respectively.