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Structure-property correlation in discontinuously reinforced aluminium matrix composites as a function of relative particle size ratio

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Title Structure-property correlation in discontinuously reinforced aluminium matrix composites as a function of relative particle size ratio
 
Creator PRASAD, VVB
BHAT, BVR
MAHAJAN, YR
RAMAKRISHNAN, P
 
Subject alloy
fracture
metal matrix composites
powder metallurgy
rps ratio
clustering
homogenisation
 
Description Metal matrix composites made by a powder metallurgy route often exhibit clustering of the reinforcements due to geometrical reasons. The clustering tendency was studied in 2124 Al/30 v/o SiCp composites as a function of relative particle size ratio between the matrix and reinforcement particles. Dry blended composite powders. with different RPS ratios, were vacuum hot-pressed and micro structures were examined to assess the uniformity of the microstructure by measuring the local area fraction of the constituents. It was found that a decrease in RPS ratio resulted in an increase in strength as well as ductility, as a result of improved distribution of the SiCp. The improved response to the homogenisation treatment, observed in the composite with lower RPS ratio, is attributed to the smaller diffusion path length for the alloying element. (C) 2002 .
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-28T20:32:25Z
2011-12-26T12:47:20Z
2011-12-27T05:40:32Z
2011-07-28T20:32:25Z
2011-12-26T12:47:20Z
2011-12-27T05:40:32Z
2002
 
Type Article
 
Identifier MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 337(1-2), 179-186
0921-5093
http://dx.doi.org/10.1016/S0921-5093(02)00024-2
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7491
http://hdl.handle.net/10054/7491
 
Language en