Wear characteristics of multiple particle size silicon carbide reinforced aluminium composite
Metal matrix composites are attractive light weight materials with potential attributes to substitute automotive materials without sacrifing performance. This present study aims to investigate the wear characteristics of aluminium (Al) 6061 reinforced with silicon carbide particles (SiCp) of thre...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications, Switzerland
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/42908/ http://irep.iium.edu.my/42908/1/P89_2015_Abd_Mumin.pdf |
| Summary: | Metal matrix composites are attractive light weight materials with potential attributes to
substitute automotive materials without sacrifing performance. This present study aims to
investigate the wear characteristics of aluminium (Al) 6061 reinforced with silicon carbide particles
(SiCp) of three (3) different particle sizes. The reinforcement consist of coarse particle (80μm),
intermediate (40μm) and fine particles (15μm) particle sizes with 10, 5, 5 wt% respectively. The
composite was fabricated using the stir casting technique due to its simplicity and cost
effectiveness. The wear test was conducted using the pin on disc tribo-system with steel disc
counter surface. The outcome of this study reveals that the MPS-SiC AMC exhibit better wear and
frictional characteristics for brake rotor application. The coarse particles have better contribution to
wear resistance because the possibility of particle pullout from the matrix for both intermediate and
fine particles is high due to small surface contact area. However, the intermediate and fine particle
compensates for multiple shielding effect for the base matrix thus influences the impact energy and
mechanical strength of the composite. The friction coefficient (0.32 - 0.46) of the MPS-SiC AMC
falls within the acceptable deviation band for automotive brake rotor application |
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