Glass forming ability and nanocrystallization kinetics of Fe65Nb10B25 metallic glasses

2010 ◽  
Vol 207 (5) ◽  
pp. 1114-1117
Author(s):  
J. Torrens-Serra ◽  
J. Rodríguez-Viejo ◽  
M. T. Clavaguera-Mora
Keyword(s):  
Metallic Glasses ◽  
Glass Forming Ability ◽  
Glass Forming ◽  
Kinetics Of

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 Glass-Forming Ability and Early Crystallization Kinetics of Novel Cu-Zr-Al-Co Bulk Metallic Glasses

Metals ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 225 ◽  
Author(s):  
Xiaoliang Han ◽  
Yusheng Qin ◽  
Kai Qin ◽  
Xuelian Li ◽  
Shenghai Wang ◽  
...  
Keyword(s):  
Crystallization Kinetics ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Glass Forming Ability ◽  
Glass Forming ◽  
Kinetics Of

Correlation between glass-forming ability, thermal stability, and crystallization kinetics of Cu-Zr-Ag metallic glasses

2012 ◽  
Vol 112 (6) ◽  
pp. 063503 ◽  
Author(s):  
K. K. Song ◽  
P. Gargarella ◽  
S. Pauly ◽  
G. Z. Ma ◽  
U. Kühn ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Crystallization Kinetics ◽  
Metallic Glasses ◽  
Glass Forming Ability ◽  
Glass Forming ◽  
Kinetics Of

scholarly journals On Glass Forming Ability of Bulk Metallic Glasses by Relating the Internal Friction Peak Value

Metals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 767
Author(s):  
Xianfeng Zhang ◽  
Xiao Cui ◽  
Zhuotong Du ◽  
Fangqiu Zu ◽  
Jinjing Li ◽  
...  
Keyword(s):  
Internal Friction ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Glass Forming Ability ◽  
Liquid Region ◽  
Internal Friction Peak ◽  
Glass Forming ◽  
Constituent Elements ◽  
Valid Criterion ◽  
Peak Value

The internal friction (IF) behaviors of a series of LaCe-, Zr-, and La-based bulk metallic glasses (BMGs) were studied by a computer-controlled, conventional inverted torsion pendulum. The results indicate that with an increasing temperature, the IF also increases gradually in the supercooled liquid region, followed by a decrease caused by crystallization. BMGs with a good glass forming ability (GFA) usually possess a high IF peak value for an alloy system with the same constituent elements. Furthermore, the magnitude of the IF value (Qi−1) of the inflection point is an efficient criterion of GFA. The Qi−1 value is a valid criterion under the conditions of identical constituent elements and different element contents. However, Qi−1 and GFA have no relationship among different alloy systems.

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