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Title: | Fabrication and characterization of A1-7Si-0.35Mg/fly ash metal matrix composites processed by different stir casting routes |
Authors: | Rajan, T P D Pillai, R M Pai, B C Satyanarayana, K G Rohatgi, P K |
Keywords: | Metal Matrix Composites Microstructure Interface Casting Fly ash |
Issue Date: | Dec-2007 |
Publisher: | Elsevier |
Citation: | Composites Science and Technology 67(15-16):3369-3377; Dec 2007 |
Abstract: | In the present investigation, the effect of three different stir casting routes on the structure and properties of fine fly ash particles (13 Mu m average particle size) reinforced Al-7Si-0.35Mg alloy composite is evaluated. Among liquid metal stir casting, compocasting (semi solid processing)and modified compocasting followed by squeeze casting routes evaluated, the latter has resulted in a well-dispersed and relatively agglomerate and porosity free fly ash particle dispersed composites. Interfacial reactions between the fly ash particle and the matrix leading to the formation of MgAl2O4 spinel and iron intermetallics are more in liquid metal stir cast composites than in compocast composites. |
URI: | http://hdl.handle.net/123456789/77 |
Appears in Collections: | 2007 |
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File | Description | Size | Format | |
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2007_00157.pdf Restricted Access | 420.44 kB | Adobe PDF | View/Open Request a copy |
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