Study of Sliding Wear Behavior of Plasma Sprayed Red Mud Composite Coatings on Mild Steel | Book Publisher International
The present investigation aims at evaluating the effect of fly ash, carbon and aluminium addition on coating characteristics of pure red mud. Plasma sprayed coatings composed of red mud and a varying percentage of fly ash, carbon and aluminium on mild steel are considered for the study. Plasma spraying technique is used with varying levels of power namely 6, 9, 12 and 15 kW. Plasma spray is one of the most widely used techniques involved in surface modification by improvement of wear resistance, which may affirm the great versatility and its application to a wide spectrum of materials. Investigations of the coatings focused on tribological properties like sliding wear behaviour, wear morphology, wear mechanism and frictional force. Different coating characteristics like surface morphology, hardness, porosity, thickness, deposition efficiency, bond strength and new phase formation are studied. The sustainability of these coatings towards high temperature at air environment up to 1000...