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dc.contributor.advisorBohorquez Avila, Carlos Arturo
dc.contributor.authorSabogal Soto, Estephany Alejandra
dc.contributor.authorRodriguez Martinez, Alvaro Javier
dc.contributor.authorMoreno Camacho, Jorge Andres
dc.coverage.spatialBogotáspa
dc.date.accessioned2015-04-22T10:14:02Z
dc.date.accessioned2015-08-26T17:59:26Z
dc.date.available2015-04-22T10:14:02Z
dc.date.available2015-08-26T17:59:26Z
dc.date.created2014
dc.date.issued2015-04-22
dc.identifier.urihttp://hdl.handle.net/10901/7839
dc.description.abstractLos aceros doble fase cobran más importancia cada día debido a la buena combinación de propiedades mecánicas que ofrecen, siendo la industria automotriz su principal aplicación, la combinación de ferrita y martensita en su microestructura son las causantes de producir transformaciones en sus propiedades mecánicas. Para este estudio se empleó un acero AISI/SAE 1045 tratado desde temperaturas intercríticas donde se encuentran ferrita y austenita y al realizar el enfriamiento rápido se transforma en martensita. Las fracciones de cada fase, varían al aumentar la temperatura desde la cual se realiza el tratamiento. Para obtener estas proporciones se utilizó la norma ASTM 562, se realizaron diversos análisis microestructurales y pruebas de dureza. Al hacer el temple en agua y el posterior revenido desde diferentes temperaturas en el intervalo intercrítico, se encontró que en ciertos rangos había un cambio sustancial en las propiedades analizadas, luego del temple se realizó un revenido a 550C con tiempos de 1, 2 y 4 horas, las metalografías muestran una variación significativa de la fracción volumétrica de martensita, mientras que al templar en aceite el material presentó la típica estructura de un acero doble fase, en donde inclusive en algunos casos se evidenció la aparición de perlita.spa
dc.formatPDF
dc.format.mimetypeapplication/pdf
dc.language.isospa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/co/*
dc.subjectFracción volumétricaspa
dc.subjecttransformaciones de fasespa
dc.subjectdoble fasespa
dc.subjecttemperaturas intercríticas.spa
dc.titleCaracterizacion Microestructural de un acero aisisae 1045 tratado termicamente en el intervalo intercriticospa
dc.rights.licenseAtribución-NoComercial-SinDerivadas 2.5 Colombia*
dc.rights.accessrightshttp://purl.org/coar/access_right/c_abf2spa
dc.description.abstractenglishDual phase steels become more important every day due to the good combination of mechanical properties that offer the automotive industry being the main application, the combination of ferrite and martensite microstructure are responsible for producing changes in their mechanical properties. For this study, an AISI/SAE 1045 steel treated from intercritical temperatures which are ferrite and austenite and rapid cooling to make the martensite becomes used. The fractions of each phase vary with increasing temperature from which the treatment is performed. For these ratios the ASTM 562 standard was used, various microstructural analysis and hardness tests were performed. Upon water quenching and subsequent tempering from different temperatures in the intercritical range, it was found that in certain ranges had a substantial change in the analyzed properties after quenching tempering was performed 550 ºC with times of 1, 2 and 4 hours, the metallographic show significant variation in the volume fraction of martensite, while the oil tempering the material showed the typical structure of a dual phase steel, where even in some cases the appearance of pearlite was evident.eng
dc.subject.subjectenglishVolume fractioneng
dc.subject.subjectenglishPhase transformationseng
dc.subject.subjectenglishDual Phaseeng
dc.subject.subjectenglishintercritical temperatureseng
dc.subject.lembINGENIERIA MECANICA --TESISspa
dc.subject.lembTEMPERATURAspa
dc.subject.lembINDUSTRIA AUTOMOTRIZspa
dc.type.localTesis de Pregradospa
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dc.identifier.instnameinstname:Universidad Librespa
dc.identifier.reponamereponame:Repositorio Institucional Universidad Librespa
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1fspa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aa


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