Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-1811 - C7-1816
DOI http://dx.doi.org/10.1051/jp4:19937287
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-1811-C7-1816

DOI: 10.1051/jp4:19937287

The influence of solidification rate on structure parameters of aluminium-matrix particulate composites

P. MOLDOVAN1, C. ALEXANDRU1, N. PANAIT1, G. POPESCU1, D. CONDEIU1, C. BALESCU1 and G.V. GHICA2

1  Polytechnique Institute Bucharest, Faculty of Mat. Science and Eng., Spl. Independentei 313, Bucharest 77206, Romania
2  I.N.T.E.C.-SA Bucharest, Romania


Abstract
Aluminium alloy-matrix composites with ceramic particulates ( Graphite, SiC, A1203, TiC) were synthesised using liquid metallurgy route. The microstructural characteristics of composites are studied, using scanning electron microscope. Experiments using various cooling rates show that primary cell size is slightly smaller in AlSi12CuNiMg ceramic particles composite compared to the base alloy. The microstructure of rapidly solidified composites revealed a more homogeneous ceramic particles distribution because of the reduced time the composite is in a molten state.



© EDP Sciences 1993