Abstract
The influence of thermo-mechanical treatment on the percent porosity and mechanical behaviour of SiC reinforced aluminium alloy (6063) composites was investigated. AA 6063 - SiC p composites having 6 and 9 vol. % of SiC were produced by the use of Borax additive and double stir casting process. The composites were cold rolled to 20, 25 and 35% deformation before solution heat-treating at 550°C for 1hour cooling rapidly in water. Density measurements and percent porosity of the composites were evaluated; also their tensile properties and fracture toughness were assessed. The results indicate that the cold rolling and solution heat-treating processes resulted in remarkable reduction in porosity levels in the composites (≤ 1.9% porosity). A good uniform distribution of the SiC particulates in the AA 6063 was also produced. The tensile properties and fracture toughness of the composites improved significantly with the adoption of the cold rolling and solution heat-treatment process.
Original language | English |
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Pages (from-to) | 96-100 |
Number of pages | 5 |
Journal | International Journal of Mechanical and Materials Engineering |
Volume | 7 |
Issue number | 1 |
Publication status | Published - Apr 2012 |
Externally published | Yes |
Keywords
- AA 6063 - SiC
- Density measurement
- Mechanical behaviour
- Stir casting
- Thermo-mechanical heat-treatment
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering