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Fabrication of AA6061-0/RHA surface composite via friction stir processing

Abdulmalik, S. S. and Ahmad, Rosli (2014) Fabrication of AA6061-0/RHA surface composite via friction stir processing. Applied Mechanics and Materials, 660. pp. 214-218. ISSN 1662-7482

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Abstract

Friction stir processing is a novel process evolved to fabricate surface metal matrix composites. Rice husk ash (RHA) is an agro-industrial waste and by product of rice husk. The feasibility of incorporating RHA powder into aluminium alloy AA6061-0 as reinforcement particles to make surface matrix composite via FSP is reported in this paper. The optical micrographs revealed a homogeneous distribution of RHA particles which were well bonded with the matrix in both first and fourth-passes of the FSP due to mechanical stirring. Microhardness of the stir zone SZ with the RHA particles of I-pass increased to about 106 HV, 40% higher than that of the base material 66 HV by dispersed RHA particles.

Item Type: Article
Uncontrolled Keywords: friction stir processing; metal matrix composite; AA6061-0 alloy; rice husk ash (RHA); microstructure; microhardness; annealing effect
Subjects: T Technology > TS Manufactures > TS200-770 Metal manufactures. Metalworking
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Manufacturing and Industrial Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 09 Apr 2015 06:47
Last Modified: 09 Apr 2015 06:47
URI: http://eprints.uthm.edu.my/id/eprint/6411
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