Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/243569
Type: Artigo de evento
Title: Influence Of Heat Treatments On Microstructure And Mechanical Behaviour Of Compressible Al Matrix, Low Density Composites
Author: Robert
M. H.; Nascimento
E. M.; Bayraktar
E.
Abstract: This work investigates the influence of solution/ageing treatments on mechanical properties under compression of a compressible, low-density composite based on AA7075 alloy as matrix, reinforced with porous ceramic particulates (foamed SiO2/Al2O3/Fe2O3). Composites were produced by thixoforming and products were characterized related to mechanical behaviour under semi-static compression, in different conditions: as thixoformed and after solution/ageing treatments. Structure of thixoformed material requires particular heat treatment conditions due to coarser secondary phases, when compared to as-cast situation. Products presented relative density around 0.5 and compression behaviour characteristic of cellular metals, showing plastic deformation plateau due to collapse of porosity, which gives the composites potential applications as energy absorbers. Effect of heat treatments upon the properties showed increase in the order of 2x of the maximum strength required to start plastic deformation and 5x in the average plateau strength, with only 15% reduction of plastic deformation.
Subject: Syntactic Foams
Country: NEW YORK
Editor: SPRINGER
Citation: Influence Of Heat Treatments On Microstructure And Mechanical Behaviour Of Compressible Al Matrix, Low Density Composites. Springer, p. 141-148 2016.
Rights: fechado
Identifier DOI: 10.1007/978-3-319-21762-8_17
Address: http://link.springer.com/chapter/10.1007/978-3-319-21762-8_17
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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