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Preparation of Zr60Ni21Al19 bulk metallic glass and compression behavior under high pressure

Published online by Cambridge University Press:  31 January 2011

G. Li ,
Q. Jing ,
T. Xu ,
L. Huang ,
R.P. Liu  and
J. Liu
G. Li*
Affiliation:
National Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People’s Republic of China
Q. Jing
Affiliation:
National Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People’s Republic of China
T. Xu
Affiliation:
National Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People’s Republic of China
L. Huang
Affiliation:
National Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People’s Republic of China
R.P. Liu
Affiliation:
National Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People’s Republic of China
J. Liu
Affiliation:
Beijing Synchrotron Radiation Laboratory (BSRF), Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Zr60Ni21Al19 metallic glass rod, with a diameter of 8 mm, is manufactured by copper mold casting. The as-cast bulk metallic glass (BMG) exhibits nearly zero plastic strain, but a high strength of 1.88 GPa. The compression behavior of this new zirconium-base ternary BMG under high pressure at ambient temperature in a diamond-anvil cell instrument has been unraveled using energy dispersive x-ray diffraction with a synchrotron radiation source. The investigation shows that the amorphous structure of Zr60Ni21Al19 is stable under pressures up to 24.5 GPa at room temperature. According to the Bridgman equation of state, the bulk modulus B0 = 96 GPa has been obtained.

Keywords

AmorphousFatigueX-ray diffraction (XRD)
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 9 , September 2008 , pp. 2346 - 2349
Copyright
Copyright © Materials Research Society 2008

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