Effects of Si Content on Friction-wear Properties of Aluminum Alloys

Dong Zhixiang; Yang Xi; Yang Yongshun

doi:10.15980/j.tzzz.2016.05.022

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Effects of Si Content on Friction-wear Properties of Aluminum Alloys
Vol. 36, Issue 5, Pages: 521-524(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.05.022

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[1]董志翔,杨茜,杨永顺.Si含量对铝基复合材料摩擦性能的影响[J].特种铸造及有色合金,2016,36(05):521-524.

Dong Zhixiang, Yang Xi, Yang Yongshun. Effects of Si Content on Friction-wear Properties of Aluminum Alloys. [J]. Special Casting & Nonferrous Alloys 36(5):521-524(2016)
[1]董志翔,杨茜,杨永顺.Si含量对铝基复合材料摩擦性能的影响[J].特种铸造及有色合金,2016,36(05):521-524. DOI： 10.15980/j.tzzz.2016.05.022.

Dong Zhixiang, Yang Xi, Yang Yongshun. Effects of Si Content on Friction-wear Properties of Aluminum Alloys. [J]. Special Casting & Nonferrous Alloys 36(5):521-524(2016) DOI： 10.15980/j.tzzz.2016.05.022.

摘要

采用粉末冶金法制备Si颗粒增强铝基复合材料

在不同的载荷条件下进行干摩擦试验

研究增强相Si含量对材料摩擦性能的影响。结果表明

增强相Si的加入有效提高了复合材料的摩擦性能;随着Si含量的增加

摩擦因数和磨损量均先减小后增大

当Si含量达到12%时

其摩擦性能最好。通过SEM和EDX分析铝基复合材料磨损表面

其磨损机制主要为磨粒磨损和氧化磨损。

Abstract

The particle reinforced aluminum matrix composites were prepared by powder metallurgy method

and effects of Si content on the friction properties of the composites were investigated by the dry friction experiment under different loading conditions.The experimental results reveal that the addition of Si can improve effectively the friction properties of particles reinforced aluminum matrix composites.With the increase of Si content

the friction coefficient and wear rate are decreased firstly and then increased.When 12% Si content

the friction coefficient and wear rate reach the minimum value.By analyzing the wear surface of aluminum matrix composites by SEM and EDX method

the wear mechanism of Al matrix composites is characterized mainly by abrasive wear and oxidation wear.