Abstract
Ti-Cu-Ni-Co quaternary amorphous alloys produce by melt spinning were found to have a wide supercooled liquid region before crystallization, though no glass transition was observed in Ti-Cu binary amorphous alloys. The largest temperature interval of the supercooled liquid region (Δ T x) is as large as 90 K for Ti 50Cu 25Ni 20Co 5.There is a tendency for Δ T x to increase with an increase in storage modulus and with a decrease in loss modulus. It is therefore presumed that the increase in Δ T x for the multicomponent amorphous alloy is due to the suppression of crystallization for the supercooled liquid resulting from the increase in viscosity.
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