scholarly journals Thermal and elastic properties of Cu–Zr–Be bulk metallic glass forming alloys

2007 ◽  
Vol 90 (21) ◽  
pp. 211901 ◽  
Author(s):  
Gang Duan ◽  
Mary Laura Lind ◽  
Katrien De Blauwe ◽  
Aaron Wiest ◽  
William L. Johnson
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Elastic Properties ◽  
Glass Forming

scholarly journals Thermophysical and elastic properties of Cu50Zr50 and (Cu50Zr50)95Al5 bulk-metallic-glass-forming alloys

2006 ◽  
Vol 89 (24) ◽  
pp. 241917 ◽  
Author(s):  
G. J. Fan ◽  
M. Freels ◽  
H. Choo ◽  
P. K. Liaw ◽  
J. J. Z. Li ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Elastic Properties ◽  
Glass Forming

Formation and properties of Zr48Nb8Fe8Cu12Be24 bulk metallic glass

2001 ◽  
Vol 16 (6) ◽  
pp. 1675-1679 ◽  
Author(s):  
Yong Zhang ◽  
D. Q. Zhao ◽  
B. C. Wei ◽  
P. Wen ◽  
M. X. Pan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Elastic Properties ◽  
Glass Forming Ability ◽  
High Thermal Stability ◽  
Water Quenching ◽  
Glass Forming ◽  
Quenching Method

Zr/Nb-based bulk metallic glass (BMG) with a composition of Zr48Nb8Fe8Cu12Be24 was formed in cylindrical shapes 8 mm in diameter by the quartz tube water quenching method. The formation and acoustic, thermal, mechanical, and elastic properties of the BMG were investigated. The BMG exhibited excellent glass-forming ability, high thermal stability, and excellent mechanical properties.

Strong Liquid Behavior of Zr-Ti-Cu-Ni-Be Bulk Metallic Glass Forming Alloys

1996 ◽  
Vol 455 ◽  
Author(s):  
Ralf Busch ◽  
Andreas Masuhr ◽  
Eric Bakke ◽  
William L. Johnson
Keyword(s):  
Glass Transition ◽  
Melting Point ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Supercooled Liquid ◽  
Glass Transition Region ◽  
Glass Forming ◽  
Liquid Behavior ◽  
Metallic Liquids ◽  
Microscopic Origin

ABSTRACTThe viscosities of the Zr46.75Ti8.25Cu7.5Ni10Be27.5 and the Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass forming liquids was determined from the melting point down to the glass transition in the entire temperature range of the supercooled liquid. The temperature dependence of the viscosity in the supercooled liquid obeys the Vogel-Fulcher-Tammann (VFT) relation. The fragility index D is about 20 for both alloys and the ratio between glass transition temperature and VFT temperature is found to be 1.5. A comparison with other glass forming systems shows that these bulk metallic glass formers are strong liquids comparable to sodium silicate glass. Furthermore, they are the strongest among metallic glass forming liquids. This behavior is a main contributing factor to the glass forming ability since it implicates a higher viscosity from the melting point down to the glass transition compared to other metallic liquids. Thus, the kinetics in the supercooled liquid is sluggish and yields a low critical cooling rate for glass formation. The relaxation behavior in the glass transition region of the alloys is consistent with their strong glassy nature as reflected by a stretching exponent that is close to 0.8. The microscopic origin of the strong liquid behavior of bulk metallic glass formers is discussed.

scholarly journals In-situ study of crystallization kinetics in ternary bulk metallic glass alloys with different glass forming abilities

2014 ◽  
Vol 105 (20) ◽  
pp. 201906 ◽  
Author(s):  
Si Lan ◽  
Xiaoya Wei ◽  
Jie Zhou ◽  
Zhaoping Lu ◽  
Xuelian Wu ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Crystallization Kinetics ◽  
Glass Forming ◽  
In Situ Study
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