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ORIGINAL PAPER
Fabrication of a High Wear Resistance AA7075/AL2O3 Composites Via Liquid Metallurgy Process
1
Department of Mathematics, Dwaraka Doss Goverdhan Doss Vaishnav College, Arumbakkam University of Madras, Chennai, India
2
Medical Laboratories Techniques Department, Al-Mustaqbal University College Babylon, Hilla, 51001, Iraq
3
Department of Pharmacology, Saveetha Dental College and Hospital Saveetha Institute Of Medical and Technical Sciences, Chennai, India
4
International College, Krirk University, Bangkok, 3 Ram Inthra Rd, Khwaeng Anusawari Khet Bang Khen, Krung Thep Maha Nakhon, 10220, Thailand
5
Department of Mechanical Engineering, Mobarakeh Branch, Islamic Azad University, Isfahan, Iran
6
Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, Iran
Online publication date: 2022-12-03
Publication date: 2022-12-01
International Journal of Applied Mechanics and Engineering 2022;27(4):205-210
KEYWORDS
ABSTRACT
In the present study, AA7075/Al2O3 composites have been fabricated via liquid metallurgy process. AA7075 alloy and Al2O3 particles were taken as the base matrix and reinforcements, respectively. Then, contents of 3 and 6 wt. % of Al2O3 subdivisions were added into the AA7075 matrix. To improve wettability and distribution, reinforcement particles were pre-heated to a temperature of 550°C for each composite sample. A hardened EN32 steel disc as the counter face was used to evaluate the wear rate pin-on-disc. The results showed that the wear rate of the AA/Al2O3 composites was smaller than that of the monolithic AA7075 samples. Finally, the worn surfaces of samples were investigated by SEM.
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