Abstract
The effect of alloying addition on the flow behavior of aluminum alloys was investigated. Three compositions were produced for this study including pure aluminum; aluminum-10wt% copper; and aluminum-10wt% copper-5wt% titanium. The bulk samples of these alloys were fabricated by mechanical alloying and hot consolidation. The flow behavior of the alloys under investigation was studied at room temperature by Stress-Strain-Microprobe(R)system and its Automated Ball Indentation(R)(ABI(R)) test method. The ABI experiment results were used to display the behavior of load-versus-depth of indentation (L-D), stress-versus-strain (S-S) behavior, yield strength, ultimate tensile strength, and ABI hardness. Pure aluminum revealed the lowest resistance to penetration and the weakest mechanical strength. The addition of copper to pure Al produced a higher resistance to penetration and augmented alloy strength. Adding Cu and Ti to pure Al exhibited the highest resistance to penetration and the strongest mechanical strength.