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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2011.tde-27012012-172742
Document
Author
Full name
Patrícia Mariane Kavalco
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2011
Supervisor
Committee
Canale, Lauralice de Campos Franceschini (President)
Arantes, Vera Lúcia
Ferrarini, Cleyton Fernandes
Title in Portuguese
Caracterização de material composto de matriz metálica a partir de um liga de alumínio aeronáutico
Keywords in Portuguese
Carbeto de silício
CMM
Componente automotivo
Liga de alumínio
Tratamento térmico
Abstract in Portuguese
Materiais compostos de matriz metálica (CMM) vêm sendo estudados para diversas aplicações. Entretanto, pouco estudo é apresentado na sua confecção a partir de materiais reciclados. Este trabalho teve como objetivo a caracterização de um material composto de matriz metálica (CMM), utilizando material reciclado como matéria prima. Foram usados aparas de chapas de liga de alumínio 2024 descartados para a matriz e carbeto de silício (SiC) como reforço, sendo a produção realizada através do processo de fabricação com base na técnica de conformação por spray para possível aplicação em componentes automotivos. Foi realizado o tratamento térmico do material e a caracterização, determinando as propriedades de dureza, resistência mecânica, resistência ao desgaste, MEV e EDS. Foram ensaiadas amostras do material composto fundido e extrudado, bem como de ferro fundido de uma peça automotiva e da liga de alumínio 2024. Observou-se que o CMM ainda precisa de melhorias no processo de produção para obter propriedades de dureza e resistência que permitam que ele possa ser usado como um substituto para o ferro fundido, porém o mesmo apresentou melhores propriedades quando comparado com o material da matriz.
Title in English
Characterization of metal matrix composite material from an aeronautical aluminum recycled alloy
Keywords in English
Aluminum alloy
Automotive component
Heat treatment
MMC
Silicon carbide
Abstract in English
Metal matrix composites (MMC) have been studied for several applications. However, little study is presented in its manufacture from recycled materials. This study aimed to characterize a metal matrix composite (MMC), using recycled material as raw material. Were used aluminum alloy 2024 plates clippings discarded for the matrix and silicon carbide (SiC) as reinforcement, being the production accomplished through the manufacturing process based on the technique of spray forming for possible application in automotive components. The thermal treatment and the characterization of the materia was accomplished, determining the properties of hardness, mechanical strength, wear resistance, SEM and EDS. Were tested samples of the cast and extruded composite material, as well as cast iron of an automotive part and aluminum alloy 2024. It was observed that the MMC still needs improvements in the production process to obtain properties of hardness and strength that allows it to be used as a substitute forcast iron, but it presented better properties when compared with the matrix material.
 
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Publishing Date
2012-02-10
 
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