Abstract
The effect of physical aging at 0.92 T c , on phase separation, crystallization, distributed shear relaxations, hardness, and strain to fracture was investigated in Cu 59Zr 41 and Fe 80B 20 glasses. In Cu 59Zr 41 glass, aging resulted in phase separation prior to crystallization, rather than the expected polymorphous crystallization. In Fe 80B 20 in the as-quenched alloys a prominent second-order Curie transition was found at 613 K, which was removed by aging. Apart from a nearly four-fold acceleration of the aging process in Fe 80B 20 over the Cu 59Zr 41 alloy, their mechanical responses to the aging were very similar in alterations of the internal friction spectrum, evolution of hardness, and strain to fracture.
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