Some experimental studies on the aging of Al-3%Cu alloy
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As previously reported, it was found out by measuring damping capacity, specific volume, lattice constant in X-ray analysis, etc. on the aging of 17S that the internal structure shows very complicated change in early stage and gradually becomes stable. It was known through the experiment on the aging of 2S, which was simple in chemical composition compared with 17S, that 2S also shows a change in internal structure similar to that by the aging and there was an unstable state especially in early stage though this had been looked to be a non-aging metal.This time, the aging of Al-3%Cu alloy in the early stages was studied through the same experimental method in order to find out the influence of the added component on the aging. This material was used, because it had been studied many times on its internal change in aging by Mr. Hardy and others.Up to this time the aging has been studied by measuring the damping capacity in torsional oscillation, but, in this experiment, the damping capacity in cantilever type transverse oscillation of the plate specimen was measured and the results were compared with ones by the former method. This was for finding out whether or not these unstable changes depend upon the measuring method and for confirming the reliability of the analysis method of measuring the damping capacity.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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