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Stability of ZrTiCuNiBe Bulk Metallic Glass upon Isothermal Annealing Near the Glass Transition Temperature

Published online by Cambridge University Press:  31 January 2011

Wei Hua Wang ,
Ru Ju Wang ,
W. T. Yang ,
B. C. Wei ,
P. Wen ,
D. Q. Zhao  and
M. X. Pan
Wei Hua Wang*
Affiliation:
Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People 's Republic of China and National Microgravity Laboratory of Chinese Academy of Sciences, Beijing 100080, People's Republic of China
Ru Ju Wang
Affiliation:
Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People's Republic of China
W. T. Yang
Affiliation:
Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People's Republic of China
B. C. Wei
Affiliation:
National Microgravity Laboratory of Chinese Academy of Sciences, Beijing 10080, People's Republic of China
P. Wen
Affiliation:
Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People's Republic of China
D. Q. Zhao
Affiliation:
Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People's Republic of China
M. X. Pan
Affiliation:
Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People's Republic of China
*
a)Address all correspondence to this author. e-mail: whw@aphy.iphy.ac.cn
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Abstract

The stability of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass (BMG) upon isothermal annealing near the glass transition temperature has been investigated by using x-ray diffraction, differential scanning calorimetry, and the pulse echo overlap method. The density, elastic constants, and thermodynamic parameters as well as their annealing time dependence have been determined. The microstructural and properties changes of the annealed BMG were checked by acoustic measurement. Obvious structural and property changes were observed with prolonged annealing of the BMG near the glass transition temperature.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 6 , June 2002 , pp. 1385 - 1389
Copyright
Copyright © Materials Research Society 2002

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