Tribological Properties of A356.2/RHA Composites

Rice husk ash （RHA） is one of the industrial waste byproduct available abundantly in the world. In the present work, an attempt is made to incorporate the RHA particles in the molten aluminum A356,2 alloy. The RHA particles were added into the matrix melt by creating a vortex with the help of a mech...

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Bibliographic Details
Published in:Journal of materials science & technology 2012-04, Vol.28 (4), p.367-372
Main Authors: Prasad, D. Siva, Krishna, A. Rama
Format: Article
Language:English
Subjects:
A356
A356.2
Aluminum alloy
Aluminum base alloys
Ashes
Discs
Disks
Materials science
Particulate composites
RHA
Rice husk ash
Wear
Wear resistance
复合材料
工业废物
扫描电子显微镜
摩擦学性能
熔融温度
磨损试验
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Summary:Rice husk ash （RHA） is one of the industrial waste byproduct available abundantly in the world. In the present work, an attempt is made to incorporate the RHA particles in the molten aluminum A356,2 alloy. The RHA particles were added into the matrix melt by creating a vortex with the help of a mechanical stirrer and the melt temperature was maintained between 800 and 850 ℃. Dry sliding wear experiments were performed in a pin on disc wear equipment against a chromium steel disc at 30 ℃. Scanning electron microscopy is used to study the wear characteristics of the unreinforced AI alloy and the A356.2/RHA composites. From the experiments it is observed that the composites exhibit higher hardness and resistance to wear as compared to unreinforced AI alloy,
ISSN:1005-0302
1941-1162
DOI:10.1016/S1005-0302(12)60069-3