THE INFLUENCE OF NiCrALY COATINGS ROUGHNESS ON OXIDATION KINETICS DURING STATIC OXIDATION TEST AT TEMPERATURE 1000 degrees C AND 1100 degrees C

摘要

The article presents the results of research related to the impact of pretreatment plasma sprayed NiCrAlY coating on the kinetics of the oxidation. The analysis covered the shell subjected to thermal spraying. The test were performed at a temperature of 1000 degrees C and 1100 degrees C the samples were removed from the furnace after 25, 300, 500, 750 and 1000 hours. The investigations range included analysis of top surface of coatings by XRD characterization oxides formed types and microscopic investigations of coatings morphology.