Table of Contents
Indian Journal of Materials Science
Volume 2015 (2015), Article ID 296324, 7 pages
Research Article

Effect of Fly Ash and Carbon Reinforcement on Dry Sliding Wear Behaviour of Red Mud

1Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, Odisha 759146, India
2Chemical Engineering Department, Jadavpur University, Kolkata, West Bengal 700032, India
3Metallurgical and Materials Engineering Department, National Institute of Technology, Rourkela 769008, India

Received 24 May 2015; Accepted 17 August 2015

Academic Editor: Joseph M. Deitzel

Copyright © 2015 Harekrushna Sutar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper explains the sliding wear performance of red mud, fly ash, and carbon composite coating on mild steel. The complex mixture of red mud, fly ash, and carbon is plasma sprayed at 9 kW operating power level. The coatings are examined to study the coating morphology, XRD phase transformation, wear rate, and wear morphology. Wear rate (in terms of cumulative mass loss) with sliding time has been demonstrated in the study. At first pure red mud is plasma coated to observe the coating characteristics and then compounded with 20% carbon, 30% carbon, and 20% carbon + 30% fly ash, separately by weight and sliding wear test conducted using pin on disc wear tester. The trial was performed at fixed track diameter of 100 mm and at sliding speed of 100 rpm (0.523 m/s) at a load of 30 N. The results are compared. Declined cumulative mass loss by inclusion of fly ash and carbon is seen. This might be due to augmented interfacial tension and dense film build-up at boundary layer.