Recovery of the shear modulus of relaxed bulk glassy Pd_(40)Cu_(30)Ni_(10)P_(20) by cooling from elevated temperatures at low rates

摘要

We found that the room-temperature shear modulus of a relaxed bulk metallic glass decreases with the cooling rate t upon cooling from elevated temperatures even though T is only a few K/min. The effect is observed as a result of cooling not only from the supercooled liquid state but also from a wide range of temperatures below the glass transition. A possible reason for the effect is discussed.