Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)

Ilustraciones

Autores:: Ramos Álvarez, Manuel Alejandro

Tipo de recurso:

Fecha de publicación:: 2022

Institución:: Universidad Nacional de Colombia

Repositorio:: Universidad Nacional de Colombia

Idioma:: spa

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dc.title.spa.fl_str_mv	Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)
dc.title.translated.eng.fl_str_mv	Improvement of the cavitation resistance of WC-Co coatings by the control of parameters of the thermal spray process High Velocity Oxy-Fuel (HVOF)
title	Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)
spellingShingle	Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF) 620 - Ingeniería y operaciones afines::629 - Otras ramas de la ingeniería 670 - Manufactura::679 -Otros productos de materiales específicos Protective coatings Revestimiento protectores Tribologia Proyección térmica por HVOF Recubrimientos a base de WCCo Cavitación Refinamiento Rietveld Porosidad XRD HVOF thermal spraying WC-Co based coatings Cavitation Rietveld refinement Porosity
title_short	Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)
title_full	Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)
title_fullStr	Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)
title_full_unstemmed	Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)
title_sort	Mejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)
dc.creator.fl_str_mv	Ramos Álvarez, Manuel Alejandro
dc.contributor.advisor.none.fl_str_mv	Toro Betancur, Alejandro
dc.contributor.author.none.fl_str_mv	Ramos Álvarez, Manuel Alejandro
dc.contributor.researchgroup.spa.fl_str_mv	Grupo De Tribología y Superficies GTS
dc.subject.ddc.spa.fl_str_mv	620 - Ingeniería y operaciones afines::629 - Otras ramas de la ingeniería 670 - Manufactura::679 -Otros productos de materiales específicos
topic	620 - Ingeniería y operaciones afines::629 - Otras ramas de la ingeniería 670 - Manufactura::679 -Otros productos de materiales específicos Protective coatings Revestimiento protectores Tribologia Proyección térmica por HVOF Recubrimientos a base de WCCo Cavitación Refinamiento Rietveld Porosidad XRD HVOF thermal spraying WC-Co based coatings Cavitation Rietveld refinement Porosity
dc.subject.lemb.none.fl_str_mv	Protective coatings Revestimiento protectores Tribologia
dc.subject.proposal.spa.fl_str_mv	Proyección térmica por HVOF Recubrimientos a base de WCCo Cavitación Refinamiento Rietveld Porosidad XRD
dc.subject.proposal.eng.fl_str_mv	HVOF thermal spraying WC-Co based coatings Cavitation Rietveld refinement Porosity
description	Ilustraciones
publishDate	2022
dc.date.accessioned.none.fl_str_mv	2022-03-09T21:56:16Z
dc.date.available.none.fl_str_mv	2022-03-09T21:56:16Z
dc.date.issued.none.fl_str_mv	2022-03-09
dc.type.spa.fl_str_mv	Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv	info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv	info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv	Text
dc.type.redcol.spa.fl_str_mv	http://purl.org/redcol/resource_type/TM
status_str	acceptedVersion
dc.identifier.uri.none.fl_str_mv	https://repositorio.unal.edu.co/handle/unal/81171
dc.identifier.instname.spa.fl_str_mv	Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv	Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv	https://repositorio.unal.edu.co/
url	https://repositorio.unal.edu.co/handle/unal/81171 https://repositorio.unal.edu.co/
identifier_str_mv	Universidad Nacional de Colombia Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv	spa
language	spa
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dc.rights.license.spa.fl_str_mv	Atribución-SinDerivadas 4.0 Internacional
dc.rights.uri.spa.fl_str_mv	http://creativecommons.org/licenses/by-nd/4.0/
dc.rights.accessrights.spa.fl_str_mv	info:eu-repo/semantics/openAccess
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dc.format.extent.spa.fl_str_mv	111 páginas
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dc.publisher.spa.fl_str_mv	Universidad Nacional de Colombia
dc.publisher.program.spa.fl_str_mv	Medellín - Minas - Maestría en Ingeniería - Materiales y Procesos
dc.publisher.department.spa.fl_str_mv	Departamento de Materiales y Minerales
dc.publisher.faculty.spa.fl_str_mv	Facultad de Minas
dc.publisher.place.spa.fl_str_mv	Medellín, Colombia
dc.publisher.branch.spa.fl_str_mv	Universidad Nacional de Colombia - Sede Medellín
institution	Universidad Nacional de Colombia
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spelling	Atribución-SinDerivadas 4.0 Internacionalhttp://creativecommons.org/licenses/by-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Toro Betancur, Alejandroeef8cfc23e5965d8d651306ca5a5e8c7600Ramos Álvarez, Manuel Alejandro8fcba1d066b470c1010a28a77254a5f2Grupo De Tribología y Superficies GTS2022-03-09T21:56:16Z2022-03-09T21:56:16Z2022-03-09https://repositorio.unal.edu.co/handle/unal/81171Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/IlustracionesEn la presente investigación se estudió la relación entre la resistencia a la cavitación de recubrimientos a base de WC-Co y los parámetros de proyección de la técnica de HVOF. Los recubrimientos fueron manufacturados con la pistola DJH-2600 la cual funciona con hidrógeno y oxígeno como gases de combustión. El proceso de proyección fue automatizado. Se obtuvieron tres repeticiones para cada condición de proyección para garantizar la repetibilidad de los experimentos. Se evaluó la resistencia a la cavitación mediante la prueba indirecta de la norma ASTM G-32 así como la rugosidad de los recubrimientos, la morfología superficial y la microestructura mediante SEM y microscopía óptica respectivamente. La porosidad de capa fue medida mediante tratamiento digital de imágenes. El análisis de las fases presentes en el recubrimiento fue llevado a cabo mediante XRD. Posteriormente los datos obtenidos se correlacionaron con los parámetros de proyección para así dar con la mejor receta. Se encontró que el parámetro que mayor efecto tuvo sobre todas las propiedades evaluadas fue el flujo total de combustión (FTC), mientras que la relación de combustión (RC) no tuvo un efecto estadísticamente significativo en los niveles evaluados en el plan experimental. Se logró mejorar la resistencia a la cavitación de los recubrimientos a base de WC-Co usando niveles elevados de FTC y una relación de combustión cercana al punto estequiométrico. (texto tomado de la fuente)In the present work, the relationship between the cavitation resistance of WC-Co based coatings and the thermal spraying parameters of the HVOF process was studied. The coatings were manufactured using DJH-2600 gun, which works with hydrogen and oxygen as combustion gases. The spraying process was automatized. Three repetitions were obtained for each projection condition to verify the experiments’ repeatability. The resistance to cavitation was evaluated by the indirect test of the ASTM G-32 standard. The roughness of the coatings, its surface morphology and microstructure were studied with the aid of contact profilometer, SEM and optical microscopy. The porosity of the coatings was measured by digital image processing and the analysis of the phases present in the coating was carried out by XRD. Subsequently, the data obtained were correlated with the projection parameters to find the best spraying recipe. It was found that the total combustion flux was the parameter that had the strongest effect on every evaluated property, while the combustion ratio (RC) did not have a statistically significant effect on the levels evaluated in the experimental plan. It was possible to improve the cavitation resistance of the WC-Co based coatings using high levels of FTC and a combustion ratio close to the stoichiometric point.MaestríaMaestría en Ingeniería Materiales y ProcesosDesgaste por abrasión, erosión y cavitaciónÁrea Curricular de Materiales y Nanotecnología111 páginasapplication/pdfspaUniversidad Nacional de ColombiaMedellín - Minas - Maestría en Ingeniería - Materiales y ProcesosDepartamento de Materiales y MineralesFacultad de MinasMedellín, ColombiaUniversidad Nacional de Colombia - Sede Medellín620 - Ingeniería y operaciones afines::629 - Otras ramas de la ingeniería670 - Manufactura::679 -Otros productos de materiales específicosProtective coatingsRevestimiento protectoresTribologiaProyección térmica por HVOFRecubrimientos a base de WCCoCavitaciónRefinamiento RietveldPorosidadXRDHVOF thermal sprayingWC-Co based coatingsCavitationRietveld refinementPorosityMejoramiento de la resistencia a la cavitación de recubrimientos de WC-Co a través del control de parámetros del proceso proyección térmica por High Velocity Oxy-Fuel (HVOF)Improvement of the cavitation resistance of WC-Co coatings by the control of parameters of the thermal spray process High Velocity Oxy-Fuel (HVOF)Trabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TM[1] R. 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Surfaces Interfaces, 2021, doi: 10.1080/17515831.2021.1938869.203010022338-DESARROLLO E IMPLEMENTACIÓN DE PROCESOS DE REPARACIÓN Y PROTECCIÓN DE COMPONENTES CRÍTICOS SOMETIDOS A DAÑO SUPERFICIAL EN CENTRALES DE GENERACIÓN TÉRMICA E HIDRÁULICA MEDIANTE TECNOLOGÍAS DE ASPERSIÓN TÉRMICA Y SOLDADURA - EPMPúblico generalORIGINAL1152210894.2022.pdf1152210894.2022.pdfTesis de Maestría en Ingeniería - Materiales y Procesosapplication/pdf4959544https://repositorio.unal.edu.co/bitstream/unal/81171/1/1152210894.2022.pdf869e6304fd933f73d2ae6d92443ff88bMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-84074https://repositorio.unal.edu.co/bitstream/unal/81171/2/license.txt8153f7789df02f0a4c9e079953658ab2MD52THUMBNAIL1152210894.2022.pdf.jpg1152210894.2022.pdf.jpgGenerated Thumbnailimage/jpeg3645https://repositorio.unal.edu.co/bitstream/unal/81171/3/1152210894.2022.pdf.jpgebdaf8f67deb489ad5a5d1fb367b4746MD53unal/81171oai:repositorio.unal.edu.co:unal/811712023-08-02 23:04:06.423Repositorio 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EVESURBIFBPUiBMQSBTRUNSRVRBUsONQSBHRU5FUkFMLiAqTEEgVEVTSVMgQSBQVUJMSUNBUiBERUJFIFNFUiBMQSBWRVJTScOTTiBGSU5BTCBBUFJPQkFEQS4gCgpBbCBoYWNlciBjbGljIGVuIGVsIHNpZ3VpZW50ZSBib3TDs24sIHVzdGVkIGluZGljYSBxdWUgZXN0w6EgZGUgYWN1ZXJkbyBjb24gZXN0b3MgdMOpcm1pbm9zLiBTaSB0aWVuZSBhbGd1bmEgZHVkYSBzb2JyZSBsYSBsaWNlbmNpYSwgcG9yIGZhdm9yLCBjb250YWN0ZSBjb24gZWwgYWRtaW5pc3RyYWRvciBkZWwgc2lzdGVtYS4KClVOSVZFUlNJREFEIE5BQ0lPTkFMIERFIENPTE9NQklBIC0gw5psdGltYSBtb2RpZmljYWNpw7NuIDE5LzEwLzIwMjEK

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