Affiliation:
1. Gadjah Mada University
Abstract
In this experiment, the influence of non-treated (NT), natural aging (T4) and artificial aging (T6) heat-treatments was investigated on the tensile strength of Al-5.9Cu-1.9Mg at different casting temperatures. Three levels of casting temperatures were used: 688, 738, 788 °C while the mold temperature was kept constant at 220 °C. The cast sample was heat-treated by natural aging and artificial aging techniques. The results show that the tensile strength in the non-treated sample decreases initially and then rises slightly with increasing casting temperature. The effect of casting temperature on T4 involved first an increase in tensile strength and then a decrease when elevating the casting temperature, but with no significant effect. In the T6 treatment, the tensile strength first decreases followed by a slight increase with increasing casting temperature. The heat treatment process improved the tensile strength in the three different samples, except at a casting temperature of 768 °C.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Cited by
13 articles.
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