Coated and uncoated reinforcements metal matrix composites characteristics and applications – A critical review

Karthik, B M and Gowri Shankar, M C and Sharma, S S and Hiremath, Pavan and Shettar, Manjunath and Shetty, Nagaraj (2020) Coated and uncoated reinforcements metal matrix composites characteristics and applications – A critical review. Cogent Engineering, 7. ISSN 2331-1916

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Abstract

Nowadays, metal matrix composites are being comprehensively used in aero and automotive applications. The usage of composites increased because of their impressive properties viz., improved strength, impact resistance, and tailored features. Compared to uncoated, coated reinforcements in the matrix improves wettability with thinner grain boundary, grain fineness, and the ability for secondary hardening. Improvement in thermal expansion and conductivity makes the composite suitable for moderate temperature shock resistance is the new openings in the field. Conventional liquid stir casting, Rheo-process, and Diffusion roll bonding are some of the methods employed for the processing of composites. Hybridisation of reinforcements with at least one as coated in the matrix improves solid solution strengthening of composites, hence responsible for improved strength and bulk hardness. Generally, a critical literature survey points to copper and nickel coatings. Copper coating rises microhardness, shows poor EMI shielding effectiveness compared to nickel-coated, whereas, nickel-coated reinforcement composites show excellent corrosion resistance compared to that of copper-coated reinforcement.

Item Type: Article
Uncontrolled Keywords: : Metal matrix composite (MMCs); aluminum alloy; composites; coating; reinforcements
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 12 Jan 2021 08:41
Last Modified: 12 Jan 2021 08:41
URI: http://eprints.manipal.edu/id/eprint/156080

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