Abstract
The development of hard reinforcements in MMCs became an important area of research in materials engineering. Metallic coatings on reinforced particles can improve wettability because it plays a key role in aluminium-based metal matrix composites. Nickel plating by electroless method having found to be an efficient method and widely accepted in various engineering domains such as aerospace, automobile, chemical and electrical industries. In this study, 20 micrometer-sized (average) alumina (Al2O3) particles are coated by nickel using electroless deposition technique. Wear specimens are prepared as per ASTM-G99 standards, using coated and uncoated reinforcements of 3, 6 and 9% weight fractions into 7075 aluminium alloy by standard stir casting route. Wear test was conducted by utilizing the test parameters, viz. track diameter, speed and load based on L18 Taguchi orthogonal array, on pin-on-disc machine, and the influencing parameters of responses were optimized using grey relational analysis. Weary surfaces were analysed using scanned electron microscopy. The specimen with 9% coated reinforced composite at 80 mm track diameter, 9.81 N and 1000 rpm showed improved resistance to wear.
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Praveen, D.V., Raju, D.R., Raju, M.V.J. (2021). Investigation on Wear Properties of Nickel-Coated Al2O3P-Reinforced AA-7075 Metal Matrix Composites Using Grey Relational Analysis. In: Akinlabi, E., Ramkumar, P., Selvaraj, M. (eds) Trends in Mechanical and Biomedical Design. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4488-0_69
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DOI: https://doi.org/10.1007/978-981-15-4488-0_69
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