Dry Sliding Wear Behavior of Ni-Cr/Micro-ZrO₂ Coated AISI 410 Grade Steel-Final Revision

Abstract:

The most common industrial needs of coatings are to improve the surface properties such as, wear resistance, corrosion resistance and thermal conductivity/insulation. The use of expensive high strength materials and super alloys can be mitigated by using low grade materials covered with suitable coatings compatible with the media and service. Air plasma spray deposition method is used to achieve dense coating on substrate. The present research work demonstrates the wear properties of Ni-Cr/Micro-ZrO₂ coating prepared through air plasma spray deposition (PSD) method. In this process, ZrO₂ particulates of average particle size (10-40µm) were sprayed on Ni-Cr coated AISI 410 grade steel substrate. Distribution of ZrO₂ particle was found uniform throughout the coating as revealed from SEM microphotographs. Dry sliding wear tests were performed on Pin-On-Disc Tribometer at room temperature with moderate humidity conditions. Significant improvement in wear performance was observed in Ni-Cr/Micro- ZrO₂ coating deposited on steel via PSD which was also evident from worn surface morphology.

• Periodical: Applied Mechanics and Materials (Volume 787)
• Pages: 454-459
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.787.454
• Online since: August 2015
• Authors: K.G. Girisha*, R. Rakesh, K.C. Anil, K.V. Sreenivas Rao
• Keywords: Coatings, Plasma Spray, Wear Resistance

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