Effect of graphite content on the wear behavior of Al/2SiC/Gr hybrid nano-composites respectively in the ambient environment and an acidic solution

被引：49
|
作者：
Mosleh-Shirazi, S. [1 ]
Akhlaghi, F. [1 ]
Li, D. Y. [2 ]
机构：
[1] Univ Tehran, Sch Met & Mat Engn, Coll Engn, POB 11155-4563, Tehran, Iran
[2] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2V4, Canada
来源：
TRIBOLOGY INTERNATIONAL | 2016年 / 103卷
关键词：
Aluminum based hybrid nano-composites; Dry sliding wear; Solid-particle erosion; Corrosive wear; METAL-MATRIX COMPOSITES; SLURRY EROSIVE WEAR; BODY ABRASIVE WEAR; RICE-HUSK ASH; MECHANICAL-PROPERTIES; SLIDING WEAR; CORROSION BEHAVIOR; PARTICULATE COMPOSITES; TRIBOLOGICAL BEHAVIOR; PARTICLE-SIZE;
D O I：
10.1016/j.triboint.2016.08.016
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Effects of graphite (Gr) content on the dry sliding wear, solid-particle erosion and corrosive wear of Al6061based hybrid nano-composites fabricated via powder metallurgy route containing 2 vol% of SiC nano-particles and 0,2, 5 and 7vol%of micron-sized Gr particles were investigated. The hardness of these composites decreased almost linearly with their Gr content, accompanied with decreased erosion resistance at 90 degrees particle impingement. Also the conductive Gr particles as the micro-cathodes enhanced galvanic effect and resulted in an increase in the corrosion rate and thereby stronger corrosive wear of nano-composites. The Al6061/2SiC/2Gr nano-composite exhibited the minimum wear rate and friction coefficient. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：620 / 628
页数：9
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