Influence of Fe3O4 particles in Al7075 metal matrix composites: A Tribological study

A Shivaramakrishna; Subramanya Raghavendra; Yadavalli Basavaraj; R Arun Kumar; M Ravi Kumar; N Kiran Kumar; R Suresh

doi:10.47566/

Authors

A Shivaramakrishna Department of Mechanical Engineering, Ballari Institute of Technology and Management https://orcid.org/0000-0002-1886-4371
Subramanya Raghavendra Department of Mechanical Engineering, Sai Vidya Institute of Technology https://orcid.org/0000-0003-4276-9638
Yadavalli Basavaraj Department of Mechanical Engineering, Ballari Institute of Technology and Management https://orcid.org/0000-0002-7595-2984
R Arun Kumar Department of Mathematics, Sai Vidya Institute of Technology https://orcid.org/0000-0003-3628-065X
M Ravi Kumar Department of Mechanical Engineering, BMS College of Engineering https://orcid.org/0000-0002-4958-839X
N Kiran Kumar Department of Mechanical Engineering, Vemana Institute of Technology https://orcid.org/0000-0001-9568-1088
R Suresh Department of Mechanical Engineering, M.S. Ramaiah University of Applied Sciences https://orcid.org/0000-0002-6956-9751

DOI:

https://doi.org/10.47566/

Keywords:

Wear rate, frictional force, Al7075- Fe3O4 Composite, Taguchi orthogonal approach, ANOVA

Abstract

Due to their widespread use in the automotive and aerospace industries, among many other engineering applications, aluminum metal-matrix composites are attracting a lot of research interest. Its low wear rate and excellent strength make it the favored alternative. The main objective of this research project is to create metal-matrix composite materials by utilizing Fe₃O₄ as a reinforcing element and aluminum alloy 7075 as the matrix material. This study examined the dry sliding wear behavior of Al7075 alloy reinforced with varying weight proportions (3%, 6%, and 9%) of Fe₃O₄ (Magnetite) on composite samples using a pin-on disc apparatus. The composite was maintained unlubricated, and the volumetric wear rate by the pin-on disc wear machine in moist air was measured. The sliding speeds ranged from 1 to 3 m/s for a constant sliding distance of 1500 meters. The coefficient of friction decreased as the reinforcement percentage of Fe₃O₄ increased in the aluminum matrix, and also, volumetric wear loss increased as the load increased. The wear tests were carried out using the Taguchi orthogonal approach for reducing the trials of the experiments and to optimize the wear rate and frictional force of Al7075-Fe₃O₄ composite. A mathematical model was obtained to determine the wear rate and frictional force of Al7075-Fe₃O₄ composite.

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