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金属学报 2009
DEFORMATION BEHAVIOR AND CONSTITUTIVE EQUATION FOR Zr55Cu30Al10Ni5 BULK METALLIC GLASS IN SUPERCOOLED LIQUID REGION
Keywords: " target="_blank">55Cu30Al10Ni5 alloyzz')" href="#">&searchField=keyword">&prev_q=55Cu30Al10Ni5 alloyzz')" href="#">" target="_blank">55Cu30Al10Ni5 alloyzz')" href="#">,Zr55Cu30Al10Ni5 alloy,bulk metallic glass,supercooled liquid region,compressive deformation,constitutive equation Abstract: The compressive deformation of the Zr55Cu30Al10Ni5 bulk metallic glass (BMG) was investigated in the supercooled region. It was found that the deformation behavior of the BMG alloy is strongly dependant on strain rate and temperature. The BMG exhibits Newtonian behavior at low strain rate but becomes non–Newtonian flow at high strain rate. The correlation between flow stress as well as strain rate and temperature was established in terms of stretched exponential function.
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