Efecto del GMAW pulsado (GMAW-P) en la integridad y microestructura de soldaduras aplicadas sobre acero inoxidable martensítico con electrodo EC410NiMo
dc.contributor.advisor | Giraldo Barrada, Jorge Enrique | |
dc.contributor.author | Morales Galeano, John Edison | |
dc.contributor.orcid | https://orcid.org/0000-0001-5175-9357 | spa |
dc.contributor.researchgroup | Grupo de investigación en soldadura | spa |
dc.contributor.subjectmatterexpert | Calderón Hernández, Jose Wilmar | |
dc.date.accessioned | 2024-07-09T13:56:24Z | |
dc.date.available | 2024-07-09T13:56:24Z | |
dc.date.issued | 2024 | |
dc.description | Ilustraciones | spa |
dc.description.abstract | Este trabajo se realizó para evaluar el impacto de algunos parámetros de GMAW pulsado en la geometría y microestructura de recargues de soldadura realizados con electrodo EC410NiMo y mezcla de 98%Ar-2%O2 como gas de protección sobre acero inoxidable ASTM A743 grado CA6NM. El desarrollo experimental estuvo dividido en dos etapas donde en la primera se buscaba determinar la corriente de transición y los modos de transferencia de metal para el electrodo mediante la aplicación de soldaduras y el análisis de sus señales eléctricas. La segunda etapa del desarrollo experimental se enfocó en determinar los parámetros de GMAW pulsado bajo la condición UGPP y mediante la variación de la duración del tiempo tipo para velocidades de alimentación de alambre entre 150 y 300Pul/min y determinar su efecto en las geometrías y microestructuras finales de los recargues de soldadura. Dentro de los resultados más importantes se observó que para las velocidades de alimentación evaluadas, el electrodo que el electrodo EC410NiMo presenta una corriente de transición en el rango de amperaje entre 150 y 170 A, que los tiempos de pulso de Tp=4.5ms ocasiona que las soldaduras presenten una apariencia irregular en toda la longitud el cordón, finalmente que todas las soldaduras presentaron una zona afectada térmicamente dividida en dos regiones principales, ZAT dura y ZAT blanda. | spa |
dc.description.abstract | This work was carried out to evaluate the impact of some parameters of pulsed GMAW on the geometry and microstructure of welds performed with EC410NiMo electrode and 98%Ar-2%O2 mix as shielding gas on ASTM A743 grade CA6NM stainless steel. The experiments were divided into two stages. In the first one the aim was to determine the transition current and the metal transfer modes for the electrode by applying welds and analyzing their electrical signals. The second stage focused on determining the parameters of pulsed GMAW under the One Dip Per Pulse (ODPP) condition by varying the duration of the pulse time for wire feed speeds between 150 and 300 in/min to analyze its effect on the final geometries and microstructures of the weld overlay. It was observed that for the feed rates evaluated, the EC410NiMo electrode presents a transition current in the amperage range between 150 and 170 A, that the pulse time of Tp=4.5 ms causes the welds to present an irregular appearance along the entire length of the bead, and that all the welds presented a thermally affected zone divided into two main regions, hard HAZ and soft HAZ. | eng |
dc.description.curriculararea | Área Curricular de Ingeniería Mecánica | spa |
dc.description.degreelevel | Maestría | spa |
dc.description.degreename | Magíster en Ingeniería Mecánica | spa |
dc.description.researcharea | Metalurgia de la soldadura | spa |
dc.format.extent | 97 páginas | spa |
dc.format.mimetype | application/pdf | spa |
dc.identifier.instname | Universidad Nacional de Colombia | spa |
dc.identifier.repo | Repositorio Institucional Universidad Nacional de Colombia | |
dc.identifier.repourl | https://repositorio.unal.edu.co/ | spa |
dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/86416 | |
dc.language.iso | spa | spa |
dc.publisher | Universidad Nacional de Colombia | spa |
dc.publisher.branch | Universidad Nacional de Colombia - Sede Medellín | spa |
dc.publisher.faculty | Facultad de Minas | spa |
dc.publisher.place | Medellín, Colombia | spa |
dc.publisher.program | Medellín - Minas - Maestría en Ingeniería Mecánica | spa |
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dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
dc.rights.license | Atribución-NoComercial-SinDerivadas 4.0 Internacional | spa |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | spa |
dc.subject.ddc | 620 - Ingeniería y operaciones afines::621 - Física aplicada | spa |
dc.subject.lemb | Semiconductores | |
dc.subject.lemb | Acero inoxidable | |
dc.subject.lemb | Soldadura eléctrica | |
dc.subject.proposal | GMAW pulsado | spa |
dc.subject.proposal | Modos de transferencia de metal | spa |
dc.subject.proposal | Corriente pico | spa |
dc.subject.proposal | Tiempo de pulso | spa |
dc.subject.proposal | Acero inoxidable martensítico | spa |
dc.subject.proposal | Pulsed GMAW | eng |
dc.subject.proposal | Metal transfer modes | eng |
dc.subject.proposal | Peak current | eng |
dc.subject.proposal | Pulse time | eng |
dc.subject.proposal | Martensitic stainless steel | eng |
dc.title | Efecto del GMAW pulsado (GMAW-P) en la integridad y microestructura de soldaduras aplicadas sobre acero inoxidable martensítico con electrodo EC410NiMo | spa |
dc.title.translated | Effect of pulsed gmaw (gmaw-p) on the integrity and microstructure of welds applied on martensitic stainless steel with ec410nimo electrode | spa |
dc.type | Trabajo de grado - Maestría | spa |
dc.type.coar | http://purl.org/coar/resource_type/c_bdcc | spa |
dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa | spa |
dc.type.content | Text | spa |
dc.type.driver | info:eu-repo/semantics/masterThesis | spa |
dc.type.redcol | http://purl.org/redcol/resource_type/TM | spa |
dc.type.version | info:eu-repo/semantics/acceptedVersion | spa |
dcterms.audience.professionaldevelopment | Investigadores | spa |
oaire.accessrights | http://purl.org/coar/access_right/c_abf2 | spa |
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