![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
NiCrAlY coating was deposited on Ni based Superni 76 superalloy using cold spray process to enhance the life of superalloy. The present investigation is an attempt to evaluate comparative behaviour of hot corrosion of the bare and coated superalloy in actual industrial medical waste incinerator. The study was conducted in the secondary chamber of medical waste incinerator for 1000 h under cyclic conditions at 900°C. The life of bare and coated superalloy has been evaluated based on thickness lost due to erosion–corrosion. The cold sprayed NiCrAlY coating successfully provided protection to the superalloy against hot corrosion. Based upon thickness loss data, the corrosion rate of exposed coated specimen calculated as 35·87 mpy.
Keywords:
Acknowledgments
The author ‘Sukhminderbir Singh Kalsi’ thankfully acknowledges the Punjab Technical University, Kapurthala, Punjab, India for carrying out this R&D work on ‘Hot Corrosion Study of Cold Spray Coatings in Medical Waste Incineration Environment’.