DEFORMATION BEHAVIOR AND CONSTITUTIVE EQUATION FOR Zr55Cu30Al10Ni5 BULK METALLIC GLASS IN SUPERCOOLED LIQUID REGION
ZHANG Linan; CHEN Qi; LIU Lin
The State Key Laboratory of Material Processing and Die & Mould Technology; Department of Materials Science and
Engineering; Huazhong University of Science and Technology; Wuhan 430074
Cite this article:
ZHANG Linan CHEN Qi LIU Lin. DEFORMATION BEHAVIOR AND CONSTITUTIVE EQUATION FOR Zr55Cu30Al10Ni5 BULK METALLIC GLASS IN SUPERCOOLED LIQUID REGION. Acta Metall Sin, 2009, 45(4): 450-454.
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.
Supported by National Natural Science Foundation of China (No.50635020) and Specialized Research Found for the Doctoral Program of Higher Education (No.200604087069)
[1] Nishiyama N, Amiya K, Inoue A. Mater Trans, 2004; 45: 1245
[2] Saotome Y , Hatori T, Zhang T, Lnoue A. Mater Sci Eng, 2001; A304–306: 716
[3] Saotome Y, Itoh K, Zhang T, Lnoue A. Scr Mater, 2001; 44: 1541
[4] Kawamura Y, Shibata T, Inoue A, Masumoto T. Scr Mater, 1997; 37: 431
[5] Kawamura Y, Nakamura T, Kato H, Mano H, Lnoue A. Mater Sci Eng, 2001; A304–306: 674
[6] Reger–Leonhard A, Heilmaier M, Eckert J. Scr Mater, 2000; 43: 459
[7] Spaepen F. Scr Mater, 2006; 54: 363
[8] Masuhr A,Waniuk T A, Busch R, JohnsonW L. Phys Rev Lett, 1999; 82: 2290
[9] Lallit A, Cheng S. Acta Mater, 2007; 55: 3735
[10] Kawamura Y, Shibata T, Inoue A, Masumoto T. Appl Phys Lett, 1996; 69: 1208
[11] Inoue A, Zhang T. Mater Trans JIM, 1996; 37: 185
[12] Matsuoka S. Relaxation Phenomena in Polymers, New York: Hanser Publishers, 1992: 322
