Author(s)

Harekrushna Sutar^1,2,3, Debashis Roy², Subash Chandra Mishra³, Rabi Ranjan Murmu¹

¹Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, India.
²Chemical Engineering Department, Jadavpur University, Kolkata, India.
³Metallurgical and Materials Engineering Department, National Institute of Technology, Rourkela, India.

The research paper focuses on evaluating the dry sliding wear behaviour of plasma sprayed coatings like red mud (RM), RM + 5% Fly Ash (FA) and RM + 5% FA + 5% Al on mild steel cylindrical shape substrate. Spraying was done at 10 kW operating power level. A conventional pin on disc wear tester is adopted for wear analysis. The wear test was performed at track diameter of 50 mm and sliding speed of 60 rpm (0.157 m/s) with normal load of 10 N. The duration of sliding varies from 54 minutes for pure red mud coating to a maximum value of 102 minutes for RM + 5% FA + 5% Al composite coating. A significant decrease in wear rate (in terms of mass loss) is observed by reinforcement of fly ash and aluminium to red mud, which might be due to improved interfacial properties.

Red Mud, Fly Ash, Aluminium, Plasma Coating, Sliding Wear, Frictional Force

Sutar, H. , Roy, D. , Mishra, S. and Murmu, R. (2016) Sliding Wear Performance Evaluation of Red Mud (RM), RM + Fly Ash (FA) and RM + FA + Al Coatings on Mild Steel. Materials Sciences and Applications, 7, 171-179. doi: 10.4236/msa.2016.73017.