THE MICRO STRUCTURE AND TRIBOLOGICAL PROPERTIES OF LIQUID-FUEL HVOF SPRAYED FINE WC-CO-CR COATING

Thursday, May 14, 2015: 8:20 AM
Room 102A (Long Beach Convention and Entertainment Center)
Mr. Rohit Upadhyaya , Birla Institute of Technology and Science ,Pilani INDIA, Pilani, India
Dr. Sharad Shrivastava , Birla Institute of Technology and Science ,Pilani INDIA, Pilani, India
Mr. S.C Modi , Metallizing Equipment Company, Jodhpur, India
Mr. A Modi , Metallizing Equipment Company, Jodhpur, India
This article report on a serise of experiments with various high-velocity oxygen fuel spray system DJ 2600 and DJ 2700, JP5000 and MJP 6000( Patented  by Metallizing Equipement company Pvt Ltd.) using WC-Co-Cr powder. The microstructure and phase composition of powders and coaitngs will be analysed by optical and scanning electron microscopy and x-ray diffraction. Coatings were also characterized by their hardness, bond strenght, abrasive wear and pin on disk. Therefore , coating of high hardness and wear resistance can be produced with all HVOF spray system when the proper spray powder and process parameters are chosen.The results demonstrate that the powder exhibit various phase transformation during the spray process depending on type of powder,spray system and spray parameters.
See more of: Tribological, Oxidation, Corrosion Behavior of Aerospace-based Coatings
See more of: Advanced Coatings for the Aerospace Industry