Wear and friction behavior of near eutectic Al-Si+ZrO2 or WC particle composites

被引:40
作者
Daoud, A
Abou-Elkhair, MT
Rohatgi, P
机构
[1] CMRDI, Non Ferrous Lab, Cairo, Egypt
[2] Univ Wisconsin, CEAS, UWM Clusters Composites Mat Dept, Milwaukee, WI USA
关键词
particle-reinforced composites; microstructure;
D O I
10.1016/j.compscitech.2003.09.020
中图分类号
TB33 [复合材料];
学科分类号
摘要
Dry sliding wear and friction behavior of cast near eutectic Al-Si alloy and composites containing 5 vol.% WC or ZrO2 particles were studied by means of a three pins-on-disk (steel) apparatus over a load rang of 18-180 N and a sliding speed of 1 m/s. The experimental results showed that the composites exhibited a superior wear resistance in comparison to that of the unreinforced alloy at load range of 18-180 N. The contact surface temperature increased with increasing applied load. The coefficients of friction for all the tested materials decreased with increasing applied load front 18 to 90 N. However, at load levels of 90-180 N, the coefficients of friction increase as the load increases. SEM investigations revealed that in the load range of 18-90 N, the worn surfaces of the composites reinforced either by WC or ZrO2 were covered by iron oxides, which provided in situ lubrication. However, at load above 90 N, the WC or ZrO2 particles fractured and lose their ability to support the load. Therefore, the wear rates of the composites significantly increased. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1029 / 1040
页数:12
相关论文
共 36 条
[1]   EFFECT OF MICROSTRUCTURE (PARTICULATE SIZE AND VOLUME FRACTION) AND COUNTERFACE MATERIAL ON THE SLIDING WEAR-RESISTANCE OF PARTICULATE-REINFORCED ALUMINUM-MATRIX COMPOSITES [J].
ALPAS, AT ;
ZHANG, J .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1994, 25 (05) :969-983
[2]   WEAR RATE TRANSITIONS IN CAST ALUMINUM-SILICON ALLOYS REINFORCED WITH SIC PARTICLES [J].
ALPAS, AT ;
ZHANG, J .
SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (03) :505-509
[3]   EFFECT OF SIC PARTICULATE REINFORCEMENT ON THE DRY SLIDING WEAR OF ALUMINUM SILICON ALLOYS (A356) [J].
ALPAS, AT ;
ZHANG, J .
WEAR, 1992, 155 (01) :83-104
[4]  
ARIKAN R, 1991, WEAR, V143, P1149
[5]   DRY SLIDING WEAR OF A356-AL-SICP COMPOSITES [J].
BAI, BNP ;
RAMASESH, BS ;
SURAPPA, MK .
WEAR, 1992, 157 (02) :295-304
[6]  
BAPTISTA CM, 1988, P C ADV CAST REINF M
[7]   THE DISTRIBUTION OF FATIGUE MICROCRACKS IN AN ALUMINUM-MATRIX SILICON-CARBIDE WHISKER COMPOSITE [J].
CHEN, EY ;
LAWSON, L ;
MESHII, M .
SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (06) :737-742
[8]   Influence of Al2O3 or ZrO2 particulate addition on the microstructure aspects of AlNi and AlSi alloys [J].
Daoud, A ;
Abo-Elkhar, M .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2002, 120 (1-3) :296-302
[9]  
DAOUD A, 2002, J MATER PROCESS TECH, V123, P2
[10]   MICROSTRUCTURE AND WEAR OF CAST (AL-SI ALLOY) GRAPHITE COMPOSITES [J].
DAS, S ;
PRASAD, SV ;
RAMACHANDRAN, TR .
WEAR, 1989, 133 (01) :173-187