Fabrication of Al Matrix Gradient Composites in High Frequency Magnetic Field

Liu Hongcai; Cao Zhiqiang; Zhang Hongliang; Liu Jidong

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Fabrication of Al Matrix Gradient Composites in High Frequency Magnetic Field
Issue 3, Pages: 242-244(2008)
Published： 2008 ，
DOI：

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[1]刘红才,曹志强,张红亮,刘吉东.高频磁场下制备铝基表面增强梯度复合材料[J].特种铸造及有色合金,2008(03):242-244+164.

Liu Hongcai, Cao Zhiqiang, Zhang Hongliang, et al. Fabrication of Al Matrix Gradient Composites in High Frequency Magnetic Field. [J]. Special Casting & Nonferrous Alloys (3):242-244(2008)
[1]刘红才,曹志强,张红亮,刘吉东.高频磁场下制备铝基表面增强梯度复合材料[J].特种铸造及有色合金,2008(03):242-244+164. DOI：

Liu Hongcai, Cao Zhiqiang, Zhang Hongliang, et al. Fabrication of Al Matrix Gradient Composites in High Frequency Magnetic Field. [J]. Special Casting & Nonferrous Alloys (3):242-244(2008) DOI：

摘要

通过向Al-15Mg2Si合金中加SiO2颗粒

利用高频磁场的电磁相分离法成功制备了Al-15Mg2Si和Al/15Mg2Si/Al2O3两种梯度复合材料。分析了两种复合材料的微观组织

讨论了加入SiO2颗粒对微观组织和力学性能的影响

并对两种合金沿径向进行了硬度测量

结果表明

硬度在径向呈梯度分布

满足梯度复合材料外硬内韧的性能特征。

Abstract

The Al-15Mg2Si and Al/15Mg2Si/Al2O3 gradient composites were prepared by introducing SiO2 particle into Al-15Mg2Si alloy in high frequency magnetic field.The effects of SiO2 particle on microstructure and mechanical properties of two kinds of composites were analyzed

and the hardness of the composites in radial was measured.The results indicate that the hardness of the composites in radial exhibits gradient distribution

meeting the demands of the composites with high intensity in outer layer and high flexibility in inner layer.