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Recolector de Ciencia Abierta, RECOLECTA
Bachelor thesis . 2021
License: CC BY NC ND
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Recolector de Ciencia Abierta, RECOLECTA
Bachelor thesis . 2021
License: CC BY NC ND
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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Caracterización mecánica y microestructural de piezas de superaleación fabricadas mediante técnicas de manufactura aditiva

Authors: Kvantaliani, Saba;

Caracterización mecánica y microestructural de piezas de superaleación fabricadas mediante técnicas de manufactura aditiva

Abstract

S'han imprès peces 3D mitjançant extrusió de pèl·lets de Inconel 718. Es van estudiar els paràmetres d'impressió més adequats per a aconseguir respectar la tolerància de les peces. Es va eliminar el solvent en dos passos, mitjançant dissolució primer i a temperatures de 500-600 °C després. Les peces es van sinteritzat a diferents temperatures i temps tractant de trobar reduir al màxim la porositat. Les mostres amb el millor resultat de densitat es van triar per a l'estudi de la seva microestructura final i es van realitzar assajos de duresa. Els millors paràmetres d'impressió i del tractament tèrmic triats es van usar per a la fabricació de les provetes de tracció que es van assajar per a obtenir les seves corbes de tensió deformació i conèixer les propietats mecàniques finals.

Se han impreso piezas 3D mediante extrusión de pellets de Inconel 718. Se estudiaron los parámetros de impresión más adecuados para conseguir respetar la tolerancia de las piezas. Se eliminó el solvente en dos pasos, mediante disolución primero y a temperaturas de 500-600ºC después. Las piezas se sinterizaron a diferentes temperaturas y tiempos tratando de encontrar reducir al máximo la porosidad. Las muestras con el mejor resultado de densidad se eligieron para el estudio de su microestructura final y se realizaron ensayos de dureza. Los mejores parámetros de impresión y del tratamiento térmico elegidos se usaron para la fabricación de las probetas de tracción que se ensayaron para obtener sus curvas de tensión deformación y conocer las propiedades mecánicas finales.

3D parts have been printed by extruding Inconel 718 pellets. The most suitable printing parameters were studied to ensure that the tolerance of the parts was respected. The solvent was removed in two steps, first by dissolution and then at temperatures of 500-600ºC. The pieces were sintered at different temperatures and times, trying to find the maximum reduction in porosity. The samples with the best density results were chosen for the study of their final microstructure and hardness tests were carried out. The best printing and heat treatment parameters chosen were used to manufacture the tensile specimens that were tested to obtain their deformation stress curves and to find out the final mechanical properties.

Country
Spain
Keywords

Three-dimensional printing, Àrees temàtiques de la UPC::Enginyeria dels materials, Inconel 718, debinding, sinterizado, ensayo de tracción, :Enginyeria dels materials [Àrees temàtiques de la UPC], MIM, MEAM-HP, AM, Materials -- Mechanical properties, aglutinante, Materials -- Propietats mecàniques, dureza, SEM, Impressió 3D, microestructura

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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