Effects of Heat Treatment on the Mechanical Properties of Al-4% Ti Alloy

Abstract

This paper examines the effects of heat treatment processes on the mechanical properties of as-cast Al-4% Ti alloy for structural applications. Heat treatment processes, namely, annealing, normalizing, quenching, and tempering, are carried out on the alloy samples. The mechanical tests of the heat treated samples are carried out and the results obtained are related to their optical microscopy morphologies. The results show that the heat treatment processes have no significant effect on the tensile strength of the as-cast Al-4% Ti alloy but produce significant effect on the rigidity and strain characteristic of the alloy. With respect to the strain characteristics, significant improvement in the ductility of the samples is recorded in the tempered sample. Thus, for application requiring strength and ductility such as in aerospace industries, this tempered heat treated alloy could be used. In addition, the quenched sample shows significant improvement in hardness.

Effect of Artificial Aging Temperature on Mechanical Properties of 6061 Aluminum Alloy

“…The obtained tensile strength is compared with published results. It is noticed that the obtained maximum tensile strength was typically greater than published research [15][16]. It was also validated that age hardened 6061 aluminum alloy was more strengthen as compared to heat treated Al-Ti alloys.…”