Desarrollo de superficies determinísticas inspiradas en piel de serpiente mediante técnicas de texturizado mecánico para aplicaciones tribológicas
| dc.contributor.advisor | Toro Betancur, Alejandro | spa |
| dc.contributor.advisor | Rudas Florez, Juan Sebastián | spa |
| dc.contributor.author | Zuluaga Díaz, Efrain | spa |
| dc.contributor.corporatename | Universidad Nacional de Colombia - Sede Medellín | spa |
| dc.date.accessioned | 2021-02-26T20:14:48Z | spa |
| dc.date.available | 2021-02-26T20:14:48Z | spa |
| dc.date.issued | 2020-08 | spa |
| dc.description.abstract | Due to the qualities that snakes have to perform locomotion on any surface with great ease and without suffering severe wear, the skin of this species was evaluated as the organ responsible of these characteristics in order to apply this knowledge to the design of artificial surfaces for high energy consumption and high wear applications. The first part of this research was oriented to the study of morphological, topographic and tribological properties of the ventral scales of the species commonly known as albino royal python using techniques such as light optical microscopy (LOM), scanning electron microscopy (SEM), atomic force microscopy (AFM) and tribological evaluation in a pin-on-disc tribometer. A number of parameters describing the deterministic nature of the surface were calculated and then used as inspiration for the design of textured surfaces on AISI 52100 steel by computerized numerical control (CNC) machining. The tribological response of the textured surfaces against AISI H13 steel showed a reduction in the coefficient of friction in comparison to conventional surfaces, as well as an anisotropic behavior related to the direction of sliding. | spa |
| dc.description.abstract | Debido a las cualidades que tienen las serpientes para realizar locomoción sobre cualquier superficie con gran facilidad y sin sufrir desgaste severo, se evaluó la piel de esta especie como uno de los órganos claves para exhibir dichas características con el fin de aplicar este conocimiento en el diseño de superficies de materiales industriales en aplicaciones de alto consumo energético y gran desgaste. La primera parte de esta investigación se orientó al estudio de propiedades morfológicas, topográficas y tribológicas de las escamas ventrales de la especie comúnmente conocida como pitón real albina utilizando técnicas como microscopía óptica (LOM), microscopía electrónica de barrido (SEM), microscopía de fuerza atómica (AFM) y evaluación tribológica en tribómetro pin-disco. De las características principales derivadas de dicha actividad se reconocieron parámetros que describen la naturaleza determinística de la superficie, y a partir de dichos parámetros se propuso un diseño de textura y se realizó la fabricación de texturas mediante maquinado CNC sobre acero AISI 52100 el cual es ampliamente usado en la elaboración de rodamientos. La respuesta tribológica de las superficies texturizadas se evaluó contra acero AISI H13. Al comparar los resultados con los presentados en superficies convencionales, se observaron modificaciones en los valores del coeficiente de fricción, además de un comportamiento anisotrópico de la fricción en relación con la dirección de deslizamiento. | spa |
| dc.description.degreelevel | Maestría | spa |
| dc.format.extent | 124 | spa |
| dc.format.mimetype | application/pdf | spa |
| dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/79322 | |
| dc.language.iso | spa | spa |
| dc.publisher.branch | Universidad Nacional de Colombia - Sede Medellín | spa |
| dc.publisher.department | Departamento de Materiales y Minerales | spa |
| dc.publisher.program | Medellín - Minas - Maestría en Ingeniería - Materiales y Procesos | spa |
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| dc.rights | Derechos reservados - Universidad Nacional de Colombia | spa |
| dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
| dc.rights.license | Atribución-SinDerivadas 4.0 Internacional | spa |
| dc.rights.license | Atribución-SinDerivadas 4.0 Internacional | spa |
| dc.rights.license | Atribución-SinDerivadas 4.0 Internacional | spa |
| dc.rights.spa | Acceso abierto | spa |
| dc.rights.uri | http://creativecommons.org/licenses/by-nd/4.0/ | spa |
| dc.subject.ddc | 620 - Ingeniería y operaciones afines | spa |
| dc.subject.proposal | biomimética | spa |
| dc.subject.proposal | Biomimetics | eng |
| dc.subject.proposal | Superficies determinísticas | spa |
| dc.subject.proposal | Deterministic Surfaces | eng |
| dc.subject.proposal | Micro-mecanizado | spa |
| dc.subject.proposal | Micro-machining | eng |
| dc.subject.proposal | Fricción | spa |
| dc.subject.proposal | Friction | eng |
| dc.title | Desarrollo de superficies determinísticas inspiradas en piel de serpiente mediante técnicas de texturizado mecánico para aplicaciones tribológicas | spa |
| dc.title.alternative | Development of deterministic surfaces inspired by snakeskin using mechanical texturing techniques for tribological applications | 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.version | info:eu-repo/semantics/acceptedVersion | spa |
| oaire.accessrights | http://purl.org/coar/access_right/c_abf2 | spa |