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Swirling efects in atmospheric plasma spraying process: experiments and simulation
Alma Gabriela Mora García
Haideé Ruiz Luna
Carlos Agustín Poblano Salas
Juan Muñoz Saldaña
Luis Gerardo Trápaga Martínez
Acceso Abierto
Atmospheric plasma spraying
Deposit footprint
Swirl effect
Mathematical modeling
Plasma torch
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-o_ 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.
John McKelliget (U. of Massachusetts), coautor.
Author contributions: conceptualization, J.M.-S. and G.T.-M.; methodology, I.M.-V.; software, I.M.-V., J.M. and G.T.-M.; formal analysis, A.G.M.-G, H.R.-L., J.M.-S.; investigation, I.M.-V.; resources, C.A.P.-S., J.M. and G.T.-M.; data curation, I.M.-V.; writing—original draft preparation, I.M.-V., A.G.M.-G, H.R.-L., J.M.-S. and C.A.P.-S.; writing—review and editing, J.M.-S., C.A.P.-S., J.M. and G.T.-M.; visualization, A.G.M.-G. and H.R.-L.; supervision, J.M.-S., C.A.P.-S., J.M. and G.T.-M.; project administration, I.M.-V., J.M. and G.T.-M.; funding acquisition, J.M. and G.T.-M. All authors have read and agreed to the published version of the manuscript.
Funding: The support from CONACYT through a FONCICYT project, No. 279931, is greatly appreciated.
Acknowledgments: Authors acknowledge the Cátedras CONACYT program. Israel Martinez also acknowledges the support received from CONACYT by a PhD grant. This work has been carried out at CENAPROT and LIDTRA national laboratories.
Conflicts of Interest: The authors declare no conflict of interest.
Coatings, vol. 10, no. april, p. 388-396
Público en general
Martínez-Villegas, I.; Mora-García, A.G.; Ruiz-Luna, H.; McKelliget, J.; Poblano-Salas, C.A.; Muñoz-Saldaña, J.; Trápaga-Martínez, G. Swirling Effects in Atmospheric Plasma Spraying Process: Experiments and Simulation. Coatings 2020, 10, 388
Versión publicada
publishedVersion - Versión publicada
Appears in Collections:Artículos Publicados en Revistas Indexadas

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