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En este proyecto se han estudiado las características mecánicas de tres materiales: Titanio HDH, Ti 6Al 4V prealeado y Ti 6Al 4V máster aleación. Los materiales han sido fabricados en el Departamento de Ciencia e Ingeniería de Materiales de la Universidad Carlos III de Madrid, y han sido conformados mediante pulvimetalurgia. Los tres materiales han tenido el mismo proceso de fabricación, compactación mediante compresión uniaxial y sinterización en vacio a 1250 ºC durante 2 horas. La caracterización mecánica se ha realizado en el Departamento de Ciencia de Materiales de la Universidad Politécnica de Madrid. Para la determinación de las características mecánicas se han realizado ensayos a distintas temperaturas (25, 200 y 400 ºC) de flexión en tres puntos con y sin entalla, y se ha realizado un análisis fractográfico con imágenes de las fracturas obtenidas mediante un microscopio electrónico de barrido (MEB). De los ensayos realizados a estos materiales se han obtenido valores de sus propiedades mecánicas. En concreto se han obtenido valores de Módulo de elasticidad, límite elástico, tenacidad a fractura y energía absorbida durante la fractura. En la Universidad Carlos III se realizó una primera caracterización mecánica, como referencia, que junto a la bibliografía existente ha servido para comparar y explicar los resultados obtenidos. ________________________________________________ In this project we have studied the mechanical properties of three materials: HDH titanium, Ti 6Al 4V prealloyed and Ti 6Al 4V master alloy. Samples of the three materials have been manufactured at the Department of Material Science and Engineering of the University Carlos III of Madrid, using powder metallurgy techniques. The three materials have the same processing parameters: uniaxial pressing followed by sintering in vacuum at 1250 °C for 2 hours. The mechanical characterization was performed at the Department of Materials Science of Civil and ports Engineers school of the Polytechnic University of Madrid. For determining the mechanical behavior, three-point bending tests with notched and unnotched samples were performed at various temperatures to obtain Young modulus, yield strength, or fracture toughness; fractography analysis was performed as well using scanning electron microscope (SEM). At the University Carlos III was made a first mechanical characterization, as a reference, which together with the existing literature has been used to compare and explain the results. Ingeniería Técnica en Mecánica
Aleaciones de titanio, Materiales, Propiedades mecánicas, Pulvimetalurgia, Aleaciones
Aleaciones de titanio, Materiales, Propiedades mecánicas, Pulvimetalurgia, Aleaciones
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