Fabrication and deformation studies on Al-Cu composite metallic materials

摘要

Al-Cu particulate composites (5-15 wt) are prepared by stir cast method by dispersing copper powders (filings) in molten aluminium. Al-5Cu alloy is also fabricated under similar processing conditions with mutual solubility. Composites show well engulfed reinforcement (copper particles) in Al matrix where as alloy reveals a well defined fine dendritic structure. Deformation (cold upsetting) studies are carried out and behavior is recorded using PC based logging system. Failure of the billet before 50 deformation has been observed for higher concentration of reinforcement composites. Comparative studies are made with the alloy having similar composition.