Swirling Effects in Atmospheric Plasma Spraying Process: Experiments and Simulation
| Autor: | Israel Martínez-Villegas, G. Trápaga-Martínez, Juan Muñoz-Saldaña, H. Ruiz-Luna, Alma G. Mora-García, John McKelliget, C. A. Poblano-Salas |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
plasma torch
Materials science business.industry deposit footprint mathematical modeling Atmospheric-pressure plasma Surfaces and Interfaces Mechanics Plasma engineering.material Computational fluid dynamics Rotation swirl effect Surfaces Coatings and Films Footprint atmospheric plasma spraying Coating lcsh:TA1-2040 Plasma torch Materials Chemistry engineering Particle lcsh:Engineering (General). Civil engineering (General) business |
| Zdroj: | Coatings, Vol 10, Iss 388, p 388 (2020) Coatings Volume 10 Issue 4 |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings10040388 |
| Popis: | Experimental evidence of swirling effects in 3D trajectories of in-flight particles is presented based on static and dynamic footprints analysis as a function of stand-off distance of Al2O3 deposited employing a Metco-9MB torch. Swirling effects were validated with a proprietary computational fluid dynamics (CFD) code that considers an argon-hydrogen plasma stream, in-flight particles trajectories, both creating the spray cone, and particle impact to form a footprint on a fixed substrate located at different distances up to 120 mm. Static and dynamic footprints showed that swirl produces a slight deviation of individual particle trajectories and thus footprint rotation, which may affect coating characteristics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|