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CSME 2020/10
Volume 41 No.5
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663-670
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Studies on Microstructural and Tensile Behavior of Aluminium Metal Matrix Composites with Addition of SiCp and Coconut Shell Ash by Squeeze Casting Method
M.Arulraj a, P.K.Palani b, S.Vijayan a and T.Pugalenthi c
aDepartment of Mechanical Engineering, Coimbatore Institute of Engineering and Technology, Coimbatore-641109, India.
bDepartment of Mechanical Engineering, Government College of Technology, Coimbatore-641013, India.
cGiles Brooker Academy, Coimbatore-India
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Abstract:
This experimental study focuses on processing of hybrid metal matrix (LM24-SiCp-coconut shell ash) composite for making castings through squeeze casting process. The primary objective was to analyze the influence of the process parameters namely reinforcement percentage, pouring temperature, squeeze pressure and mould temperature on response. Samples were cast for each experimental condition based on L9(34) orthogonal array. From ANOVA, it was observed that reinforcement percentage and squeeze pressure were the process parameters making a noticeable improvement in tensile strength. Scanning electron microscopy studies were carried on the fractured tensile test specimen to analyze the fracture mechanism.
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Keywords: LM24 aluminium alloy, silicon carbide, coconut shell ash, squeeze casting, Taguchi method, genetic algorithm
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©
2020
CSME , ISSN 0257-9731
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