Cyclic oxidation behaviour of plasma sprayed metallic coatings
Autor: | Abdul Quddus, Anwar Ul-Hamid, H. Saricimen |
---|---|
Rok vydání: | 2015 |
Předmět: |
Materials science
Scanning electron microscope Mechanical Engineering Metallurgy Alloy Metals and Alloys Adhesion engineering.material Condensed Matter Physics Metal Coating Mechanics of Materials visual_art Conversion coating Materials Chemistry Ceramics and Composites visual_art.visual_art_medium engineering Composite material Thermal spraying Spectroscopy |
Zdroj: | Materials at High Temperatures. 32:575-582 |
ISSN: | 1878-6413 0960-3409 |
DOI: | 10.1179/1878641314y.0000000042 |
Popis: | High temperature Co- and Ni-based metallic coatings of various compositions were applied on SS-310 samples using plasma spray technique. The coated samples were exposed to air under cyclic conditions at 900°C for upto 100 h. Adhesion of coatings was measured using standard ASTM C 633-79 method. Scanning electron microscopy coupled with energy dispersive X-ray spectroscopy was used to determine the surface morphology and microchemical constitution of coatings. X-ray diffraction was used to identify different phases formed during oxidation. Experimental results indicated that high temperature oxidation of SS-310 alloy was greatly reduced by all coatings. The plasma sprayed metallic coatings on SS-310 alloy performed better than that of bare SS-310 under the selected test conditions. Moreover, when compared among the selected metallic coatings used in the study, the Co-based coatings with higher Cr concentration exhibited superior performance compared to Ni-based coating with lower Cr concentration during th... |
Databáze: | OpenAIRE |
Externí odkaz: | |
Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |
načítá se...