Analysis of the solidification and properties of plaster cast al based composites

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URI: https://hdl.handle.net/11556/3482
ISSN: 1733-3490
DOI: 10.2478/v10172-011-0160-3
Publication date
2012-03-01
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Abstract
The present work deals with aspects related to the solidification and properties of an Al-Si10Mg/SiC 20p alloy cast in plaster moulds. Several strategies were followed to shorten its solidification time such as embedding copper tubes into the mould to make circulate cooling fluids immediately after the casting step. The analysis of cooling curves provided valuable information on the effect of the particles on solidification events. The precipitation of different phases of the MMC takes place at higher temperatures and earlier than in the case of the non reinforced alloy. Particles affect the solidification pattern of the alloy and play a noticeable role in the precipitation of the phases. This fact should be taken into account to design the filling and feeding systems correctly and for modelling and processing parameters as well as in thermal treatments. Eventually samples were obtained under the highest solidification rate conditions to analyse the microstructure and tensile properties of the MMC material.
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F3S. 20S , Lost wax , MMCs , Plaster casting , Solidification , Metals and Alloys
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journal article
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Egizabal , P , Romero , A & Torregaray , A 2012 , ' Analysis of the solidification and properties of plaster cast al based composites ' , Archives of Metallurgy and Materials , vol. 57 , no. 1 , pp. 119-125 . https://doi.org/10.2478/v10172-011-0160-3