Abstract
A new Al-Mg alloy, SX01 designated by Sumitomo Light Metal, for high strain rate superplastic forming (SPF) has been developed. The elongation of this alloy indicates more than 300 % at a strain rate of 10 to 10 -2 s -1 The strain rate is the 10 to 100 times of the conventional one for SPF. A SPF using the new alloy can be completed within a few minutes. Cavitation is one of problems on the conventional alloys. Cavity volume fraction after SPF of the new alloy is marvelously lower than that of the conventional alloys. The products using the new alloy would be made in less time and with lower cavity volume fraction compared with conventional alloys.
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