Investigating the Microstructure and Mechanical Performance of Ceria and Graphene-Reinforced Aluminum Hybrid Composites

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Document Type : Article

Authors

1 Department of Mechanical Engineering, Maharishi Markandeshwar (Deemed to be University), Mullana- Ambala, Haryana-134203, India

2 Department of Chemical Engineering, Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India

3 Department of Applied Sciences, Chandigarh College of Engineering, Chandigarh Group of Colleges, Jhanjeri, Mohali - 140307, Punjab, India

4 Department of Mechanical Engineering, Panjab University SSG Regional Centre Hoshiarpur, Punjab, India

10.24200/sci.2024.61986.7593

Abstract

Metal matrix composites (MMCs) are a type of sophisticated materials including a metal or alloy matrix blended with a reinforcing phase, which may exist as particles-whiskers, . Hybrid metal matrix composites (HMMCs) are sophisticated types of materials that utilize various reinforcing agents to improve the characteristics of the underlying metal matrix. Hybrid aluminum metal matrix composites (HAMMCs) are a specific category of metal matrix composites that utilize aluminum or its alloys as the primary material and include two or more distinct forms of reinforcements. The primary objective of this work is to investigate the mechanical and microstructural characteristics of hybrid composites consisting of Al6061, GNPs, and CeO2. The Al-6061 alloy is used as the matrix material, while graphene nanoplatelets (GNPs) and cerium oxide (CeO2) are used as reinforcing agents. The hybrid composites were produced by employing a 2-step stir-casting technique with proportions of 94:1:3, 96:3:3, and 94:3:1 of Al-6061: GNPs: CeO2. The 96:3:3 proportion was found to be the best which has a 24.47% increment in hardness value having the lowest grain size of 6.36nm. The maximum mechanical properties such as tensile strength (148.239 MPa), flexural strength (265 MPa), and impact strength (13.062 Joules) in the same proportion HAMMCs specimen.

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Scientia Iranica

Articles in Press, Accepted Manuscript
Available Online from 26 November 2024

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History

  • Receive Date: 25 February 2023
  • Revise Date: 19 September 2024
  • Accept Date: 24 November 2024

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