Title: An experimental evaluation of mechanical properties and tribological behaviour of A380/NanohBN composite

Authors: Jaivir Singh; Noe Alba-Baena; Rajeev Trehan; Vishal S. Sharma

Addresses: Department of Industrial and Production Engineering, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India ' Department of Industrial and Manufacturing Engineering, Institute of Engineering and Technology, Autonomous University of Ciudad Juarez, Chihuahua, Mexico ' Department of Industrial and Production Engineering, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India ' School of Mechanical, Industrial and Aeronautical Engineering, University of the Witwatersrand, Johannesburg, South Africa

Abstract: Aluminium metal matrix composites (AMMC) find its extensive usage and applications in automotive and aerospace industries. Present study deals with exploring the effect of adding hexagonal boron nitride (0, 0.5, 1 and 1.5 weight percentage) as reinforcement in matrix material Al A380 alloy, on the mechanical and tribological properties using mechanical stirring. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) are used to characterise fabricated composites. Next, tensile, hardness and wear tests by varying applied loads and sliding speeds using pin on disk tribometer are performed on fabricated composites. It concludes that mechanical stirring distributes the nano powder uniformly and efficiently. The improved ultimate tensile strength, hardness, and tribological properties are observed for fabricated composite as compare to base alloy. Scanning electron microscopy images are used to analyse the worn out surfaces.

Keywords: nanocomposites; metal matrix composite; aluminium A380; hexagonal boron nitride; stirring; mechanical properties; wear; coefficient of friction; pin on disk; tribological.

DOI: 10.1504/IJMATEI.2023.128284

International Journal of Materials Engineering Innovation, 2023 Vol.14 No.1, pp.17 - 33

Received: 08 May 2021
Accepted: 22 Aug 2021
Published online: 16 Jan 2023 *