Thermal Stress Analysis of FeCrAlY Powder in HVOF Thermal Spray Coating Using ANSYS

The coatings used in furnace for increasing the life of copper block (wall) usually consist of Wc-Co powder. The thermal conductivity of powders classified under this group decreases with increase in temperature resulting in high heat absorption rate and consequent failure of coating. FeCrAlY powder has been developed and its thermal analysis has been performed in ANSYS which shows that thermal conductivity of this alloy is directly proportional to temperature and thus at elevated temperature it conducts more heat to the copper block increasing its useful life.