scholarly journals Unequal effect of thermodynamics and kinetics on glass forming ability of Cu–Zr alloys

AIP Advances ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 045114
Author(s):  
Shraddha Ganorkar ◽  
Yun-Hee Lee ◽  
Sooheyong Lee ◽  
Yong Chan Cho ◽  
Takehiko Ishikawa ◽  
...  
Keyword(s):  
Glass Forming Ability ◽  
Glass Forming ◽  
Thermodynamics And Kinetics ◽  
Zr Alloys

Thermodynamics and Kinetics of Bulk Metallic Glass

MRS Bulletin ◽  
2007 ◽  
Vol 32 (8) ◽  
pp. 620-623 ◽  
Author(s):  
R. Busch ◽  
J. Schroers ◽  
W. H. Wang
Keyword(s):  
Metallic Glasses ◽  
Pure Metal ◽  
Glass Forming Ability ◽  
Kinetic Properties ◽  
Size Mismatch ◽  
Atomic Size ◽  
Glass Forming ◽  
Thermodynamics And Kinetics ◽  
Metal Melts ◽  
Kinetics Of

AbstractBulk metallic glasses (BMGs) are multicomponent alloys with typically three to five components with large atomic size mismatch and a composition close to a deep eutectic. Packing in BMG liquids is very dense, with a low content of free volume resulting in viscosities that are several orders of magnitude higher than in pure metal melts. The dense packing accomplished by structural and chemical atomic ordering also brings the BMG-forming liquid energetically and entropically closer to its corresponding crystalline state. These factors lead to slow crystallization kinetics and consequentially to high glass-forming ability. This article highlights the thermodynamic and kinetic properties of BMGs and their contributions to extraordinarily high glass-forming ability. Some possible links with mechanical properties are also suggested.

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

Reassessing the atomic size effect on glass forming ability: Effect of atomic size difference on thermodynamics and kinetics

2016 ◽  
Vol 69 ◽  
pp. 123-127 ◽  
Author(s):  
Hyung-Seop Han ◽  
Nayoung Park ◽  
Jin-Yoo Suh ◽  
Ho-Seok Nam ◽  
Hyun-Kwang Seok ◽  
...  
Keyword(s):  
Size Effect ◽  
Glass Forming Ability ◽  
Size Difference ◽  
Atomic Size ◽  
Glass Forming ◽  
Thermodynamics And Kinetics ◽  
Atomic Size Difference

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.

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
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