Abstract
Quasi-static compression tests were conducted on a Zr-based bulk metallic glass in a temperature ranges from 77 K to 370 K. It is observed that the compressive plasticity presents a maximum value at 273 K, which is about 0.4Tg of the BMG. This is different from usually reported better compressive plasticity under lower ambient temperature. The free volume assisted activation of shear transformation zones and the thermal conduction between shear layer and the rest of the specimen are validated to be suitable to rationalize these observations.
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