EFFECTS OF Cu CONTENT ON THE WEAR PROPERTIES OF Al2O3&bull;SiO2sf/Al－Cu COMPOSITES

XU Hongyu; HUANG Lujun; GENG Lin; ZHANG Jie; HUANG Yudong

doi:10.3724/SP.J.1037.2013.00001

Acta Metall Sin >

2013 , Vol. 49 >Issue 9: 1131 - 1136

DOI: https://doi.org/10.3724/SP.J.1037.2013.00001

EFFECTS OF Cu CONTENT ON THE WEAR PROPERTIES OF Al₂O₃•SiO_2sf/Al－Cu COMPOSITES

XU Hongyu ,
HUANG Lujun ,
GENG Lin ,
ZHANG Jie ,
HUANG Yudong

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1) Harbin Chenneng Gong Da Enviromental Technology Co., Ltd., Harbin 150078
2) College of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001

3) School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001

Received date: 2013-01-04

Revised date: 2013-03-05

Online published: 2013-09-11

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Abstract

Al₂O₃•SiO_2sf/Al－Cu composites with different Cu contents were successfully fabricated by squeeze casting. The wear test results show that friction coefficient of the composites decreases with increasing Cu contents. Moreover, the wear resisting property of the prepared composites firstly increases and then decreases with increasing Cu contents. In wear testing process, Al₂O₃•SiO₂ fibers are firmly fixed in the matrix and formed the framework which can protect Al matrix from grinding. Therefore, the wear resistance of the composites is increased by addition of Al₂O₃•SiO₂ fiber reinforcement. The main wear mechanism of Al₂O₃•SiO_2sf/pure Al composite is adherence abrasion, while that of Al₂O₃•SiO_2sf/Al－Cu composite is adhesive wear accompanied by abrasive wear.

Cite this article

XU Hongyu , HUANG Lujun , GENG Lin , ZHANG Jie , HUANG Yudong . EFFECTS OF Cu CONTENT ON THE WEAR PROPERTIES OF Al₂O₃•SiO_2sf/Al－Cu COMPOSITES[J]. Acta Metall Sin, 2013 , 49(9) : 1131 -1136 . DOI: 10.3724/SP.J.1037.2013.00001

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