Combined HVOF and PVD technology in coating manufacturing alternate to hard chrome
Implementing Organization
National Institute Of Technology, Mangalore, Karnataka
Principal Investigator
Dr. Ramesh M R
National Institute Of Technology, Mangalore, Karnataka, 575025
CO-Principal Investigator
Dr. Ravikiran Kadoli
Professor
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National Institute of Technology, Surathkal, Karnataka, 575025
CO-Principal Investigator
Dr. Sharnappa Joladarashi
National Institute of Technology, Surathkal, Karnataka, 575025
Associate Prof.
About
The project aims to create a coating with similar or better performance to hard chrome coatings using high velocity oxy fuel (HVOF) technology and arc vacuum PVD technology. The coating is expected to improve hardness, wear resistance, and anti-corrosive performance. Composite PVD coatings like AlCrN/ZrCN are deposited on the HVOF sprayed Carbide-NiCr coatings surface, enhancing adhesion to the steel substrate and reducing cracking probability. The synergetic effect of combining different coatings is crucial, with the lower HVOF layer acting as a protective run-in layer. The coating system's sliding adhesive wear resistance and corrosion resistance will be evaluated using Ball-on-disc tribometers and electrochemical corrosion setups.
National Institute Of Technology, Mangalore, Karnataka
Professor
Associate Prof.
Acces sibility Controls