Microstructural Changes During Heat Treatment of Cold Sprayed Pure Titanium Coatings
| Autor: | W. Wong, E. Irissou, J.-G. Legoux, S. Yue |
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| Rok vydání: | 2011 |
| Zdroj: | International Thermal Spray Conference. |
| ISSN: | 2768-1505 2768-1491 |
| DOI: | 10.31399/asm.cp.itsc2011p1091 |
| Popis: | This research systematically examines the effect of heat treatment on the microstructural properties of cold sprayed titanium coatings. Heat treatments were performed on as-sprayed coatings at 200, 400, 600, and 800°C for four hours under argon atmosphere. Vickers microhardness, microstructural investigation using FEG-SEM, structural characterization using XRD, and porosity evaluation using SEM image analysis were performed on as-sprayed and heat treated coatings. Results demonstrated that static recovery and static recrystallization may have occurred for heat treated coatings at 600 and 800°C. In addition, for the heat treated coating at 800°C, significant oxidation occurred and a slight decrease in porosity took place. Furthermore, a thin metallic layer characteristic of a solid solution or an intermetallic compound, was found at the coating/substrate interface. |
| Databáze: | OpenAIRE |
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