INTERFACIAL REACTIONS AND AGE-HARDENING IN AL-MG-SI METAL-MATRIX COMPOSITES REINFORCED WITH SIC PARTICLES

Citation
L. Salvo et al., INTERFACIAL REACTIONS AND AGE-HARDENING IN AL-MG-SI METAL-MATRIX COMPOSITES REINFORCED WITH SIC PARTICLES, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 177(1-2), 1994, pp. 173-183
Citations number
31
Categorie Soggetti
Material Science
ISSN journal
09215093
Volume
177
Issue
1-2
Year of publication
1994
Pages
173 - 183
Database
ISI
SICI code
0921-5093(1994)177:1-2<173:IRAAIA>2.0.ZU;2-3
Abstract
Al-Si-Mg matrix composites have been fabricated by the compocasting te chnique using as-received and oxidized particles. Interfacial reaction s occurring during fabrication and during subsequent remelting of the composites were characterized by detailed analytical transmission elec tron microscopy. The effects of these reactions on the age hardening r esponse of the materials are also characterized and discussed in detai l. The results show that it is possible to control the interfacial rea ctions either to totally suppress age hardening or to give rise to har dening in the case of a normally non-hardenable matrix alloy.