Effects of SiC Particles on Microstructure and Wear Behavior of Aluminum Matrix Composites

Chi Changzhi; Li Shixin; Zhang Yongsheng

doi:10.15980/j.tzzz.2014.04.004

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Effects of SiC Particles on Microstructure and Wear Behavior of Aluminum Matrix Composites
Vol. 34, Issue 4, Pages: 426-429(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.04.004

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[1]迟长志,李世欣,张永胜.SiC_p对铝基复合材料组织和磨损性能的影响[J].特种铸造及有色合金,2014,34(04):426-429.

Chi Changzhi, Li Shixin, Zhang Yongsheng. Effects of SiC Particles on Microstructure and Wear Behavior of Aluminum Matrix Composites. [J]. Special Casting & Nonferrous Alloys 34(4):426-429(2014)
[1]迟长志,李世欣,张永胜.SiC_p对铝基复合材料组织和磨损性能的影响[J].特种铸造及有色合金,2014,34(04):426-429. DOI： 10.15980/j.tzzz.2014.04.004.

Chi Changzhi, Li Shixin, Zhang Yongsheng. Effects of SiC Particles on Microstructure and Wear Behavior of Aluminum Matrix Composites. [J]. Special Casting & Nonferrous Alloys 34(4):426-429(2014) DOI： 10.15980/j.tzzz.2014.04.004.

摘要

通过粉末冶金制备了不同SiCp含量的SiCp增强铝基复合材料

研究了不同含量的SiCp对铝基复合材料工艺及组织性能的影响。结果表明

在压制成型时增加SiCp含量对模具有磨损;但在烧结时却能促进致密化。SiCp增强铝基复合材料的硬度开始是随SiCp含量增加而增加

在SiCp达到一定程度后反而呈下降趋势。SiCp含量在15%

0%时

复合材料具有较好的耐磨性。磨损机制是磨粒磨损和剥离磨损。

Abstract

SiC particles reinforced aluminum matrix composites with different SiC volume fractions were prepared by powder metallurgy.Effects of different SiC volume fraction on microstructure and properties of the aluminum matrix composites were investigated.The results indicate that increase of SiC content can deteriorate the mold service life during pressing process

while it can promote densification during sintering.With the increase of SiC content

hardness of the composites prepared by sintering is decreased.The wear behavior of the composites prepared is firstly decreased and then increased with increasing in SiC content

and the desirable wear resistance can be obtained with 15%

0%SiC content.The wear mechanism is characterized by abrasive and peel wear.