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International Journal of Material Science Innovations
IJMSI 2015, 3(3), 74-86
The Influences of Variation of Copper Content on the Mechanical Properties of Aluminium Alloy
a Department of Mechanical Engineering, Meerut Institute of Technology, Meerut, India
b Meerut Institute of Technology, Meerut, India
ABSTRACT
The aluminum copper alloys typically contain between 9 to 12% copper, with smaller additions of other elements. The copper provides substantial increases in strength and facilitates precipitation hardening. The copper in aluminum can reduce ductility and c orrosion resistance. The susceptibility to solidification cracking of aluminum copper alloys is increased; consequently, some of these alloys can be the most challenging aluminum alloys to weld. These alloys include some of the highest strength heat treata ble aluminum alloys. The main uses for aluminium alloy are in inte rn al combustion engines . In this work we are interesting to investigate the mechanical properties of aluminium alloy to vary the percentage of copper. The results showed that with the increa sing of copper content the solidification time increased, and increase of both the ultimate tensile strength and the hardness is obtained by the increase of the copper content.