The Influence of TiO2/Si3N4 Nano-Particles on the wear Properties of Aluminium hybrid composites through stir casting process

¹ Department of Mechanical Engineering, Andhra University, visakhapatnam, Andhra Pradesh
² Department of Mechanical Engineering, Andhra University, visakhapatnam, Andhra Pradesh.
³ Department of Mathematics, CVR College of Engineering, Hyderabad, Telangana
⁴ Department of Mechanical Engineering , Kumaraguru College of Technology, Coimbatore, Tamilnadu.
⁵ Department of Mechanical Engineering ,Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, Telangana.
⁶ Faculty of Pharmaceutical Sciences, Research & Incubation Centre, Rayat Bahra University, Chandigarh-Ropar NH 205, Greater Mohali, Punjab, 140103, India.

^* Corresponding author: ram4mgriet@gmail.com

Abstract

The Wear tests for Al-Zn alloys reinforced with TiO₂ and Si₃N₄ were conducted using the Pin-on-Disc method to estimate the wear rate under different load conditions, sliding distance, and reinforcement percentage. The time period for each test was kept constant at 10 minutes. The results presented that when the load of 30 N was applied with a sliding distance of 1000 m, the wear rate decreased to 0.00154 mm³/Nm. Nevertheless, as the load increased to 50 N and the sliding distance prolonged to 2000 m, the wear rate increased significantly to 0.00356 mm³/Nm. This increase in wear rate could be attributed to the combined belongings of developed load and longer sliding distances, lead to greater frictional heat generation at the sliding interface. Moreover, at load of 50 N and a sliding distance of 2000 m, with 6 wt% TiO₂ and 2 wt% Si₃N₄ reinforcement, the wear rate further increased to 0.00503 mm³/Nm. This suggested that the combination of raised load, extended sliding distance, and specific reinforcement percentages aggravated the wear due to intensified mechanical stress and heat buildup.