scholarly journals Interfacial Free Energy Controlling Glass-Forming Ability of Cu-Zr Alloys

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Dong-Hee Kang ◽  
Hao Zhang ◽  
Hanbyeol Yoo ◽  
Hyun Hwi Lee ◽  
Sooheyong Lee ◽  
...  
Keyword(s):  
Free Energy ◽  
Interfacial Free Energy ◽  
Glass Forming Ability ◽  
Glass Forming ◽  
Zr Alloys

scholarly journals Polytetrahedral structure and glass-forming ability of simulated Ni–Zr alloys

2018 ◽  
Vol 149 (13) ◽  
pp. 134501 ◽  
Author(s):  
B. A. Klumov ◽  
R. E. Ryltsev ◽  
N. M. Chtchelkatchev
Keyword(s):  
Glass Forming Ability ◽  
Glass Forming ◽  
Zr Alloys

Effect of Zr addition on the glass-forming ability and mechanical properties of Ni–Nb alloy

2007 ◽  
Vol 22 (2) ◽  
pp. 453-459 ◽  
Author(s):  
Z.W. Zhu ◽  
H.F. Zhang ◽  
W.S. Sun ◽  
Z.Q. Hu
Keyword(s):  
Mechanical Properties ◽  
Glass Forming Ability ◽  
Compression Tests ◽  
Casting Method ◽  
Scanning Calorimetry ◽  
Glass Forming ◽  
Zr Addition ◽  
Pattern Structures ◽  
Injection Casting ◽  
Zr Alloys

The effect of zirconium (Zr) addition on the glass-forming ability (GFA) and mechanical properties of the Ni61.5Nb38.5 alloy has been studied. The addition of Zr improves the GFA. When x = 5 for Ni61.5Nb38.5−xZrx (in at.%) alloys, the alloy exhibits the best GFA and can be cast into 3-mm-diameter amorphous samples by using the copper mold injection-casting method. Differential scanning calorimetry measurements indicated that the thermal parameters, such as Trg and γ, have not a good correlation with the GFA in the Ni–Nb–Zr alloys. Compression tests reveal that the addition of Zr just decreases the fracture strength slightly from 3.4 to 3 GPa and that all of the tested samples exhibit a little compressive plasticity of about 2%. When x = 9, the feature of the fracture surface indicates that the alloy has a tendency for transition from the ductile to the brittle. And delicate “dimple” and microscale vein pattern structures have been observed on it.

Thermodynamics of Te80Ge20 − x Pbx glass-forming alloys

1988 ◽  
Vol 3 (3) ◽  
pp. 570-575 ◽  
Author(s):  
L. Battezzati ◽  
A. L. Greer
Keyword(s):  
Free Energy ◽  
Specific Heat ◽  
Glass Forming Ability ◽  
Undercooled Liquid ◽  
Scanning Calorimetry ◽  
Entropy Of Fusion ◽  
Glass Forming ◽  
Crystal Phases ◽  
Solid Phases ◽  
Liquid And Solid Phases

The specific heat of liquid and solid phases and the heats of crystallization and fusion have been measured by differential scanning calorimetry (DSC) for a series of Te80Ge20 − x Pbx alloys (0≤x≤20). The enthalpy, entropy, and free energy of the undercooled liquid are quantitatively assessed with reference to the crystal phases. The available formulas for computing the free energy of the liquid are compared, and their relative merits are discussed. The glass transition temperature is shown to depend strongly on the ratio of the average excess specific heat of the liquid to the entropy of fusion. An anomaly in the liquid specific heat, which is particularly important for Te80Ge20 and Te80Ge15Pb5, leads to very good glass forming ability for these alloys; this is demonstrated by preparing amorphous samples by means of fluxing.

The relation between density, thermal expansion and glass-forming ability in polycrystalline Cu–Zr alloys

2018 ◽  
Vol 6 (3) ◽  
pp. 036510
Author(s):  
D A Yagodin ◽  
V A Bykov ◽  
T V Kulikova ◽  
K Yu Shunyaev ◽  
S Kh Estemirova ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Glass Forming Ability ◽  
Glass Forming ◽  
Zr Alloys

Origin of glass forming ability of Cu-Zr alloys: A link between compositional variation and stability of liquid and glass

2018 ◽  
Vol 2 (11) ◽  
Author(s):  
Shraddha Ganorkar ◽  
Sooheyong Lee ◽  
Yun-Hee Lee ◽  
Takehiko Ishikawa ◽  
Geun Woo Lee
Keyword(s):  
Glass Forming Ability ◽  
Compositional Variation ◽  
Glass Forming ◽  
Zr Alloys

Estimation of the glass forming ability of the Ni–Zr and the Cu–Zr alloys

2007 ◽  
Vol 434-435 ◽  
pp. 152-155 ◽  
Author(s):  
Taichi Abe ◽  
Masato Shimono ◽  
Machiko Ode ◽  
Hidehiro Onodera
Keyword(s):  
Glass Forming Ability ◽  
Glass Forming ◽  
Zr Alloys

scholarly journals On the origin of bulk glass forming ability in Cu-Hf, Zr alloys

2016 ◽  
Vol 114 (1) ◽  
pp. 17006 ◽  
Author(s):  
Ramir Ristić ◽  
Krešo Zadro ◽  
Damir Pajić ◽  
Ignacio A. Figueroa ◽  
Emil Babić
Keyword(s):  
Glass Forming Ability ◽  
Bulk Glass ◽  
Glass Forming ◽  
Zr Alloys
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