Shallow neural networks to predict glass transition, crystallization and liquidus temperature of iron-based metallic glasses

The properties of Iron-based metallic glasses, such as glass-forming ability and soft magnetic properties, (MGs) have been widely investigated. However, seldom reports are available concerning the properties of these iron-based melts. In the present work, the viscosity of superheated Fe-Si-B-Nb metallic glass forming liquids (MGFLs) was measured by a torsional oscillating viscometer. It has been found that the crucial condition to get viscosity data using graphite crucibles is to reach a superheated degree of at least 250 K for melts prior to measurements. The viscosity increases monotonically with a decrease in temperature before solidification, without distinct changes of dynamic mechanism during cooling. The present work indicates that these iron-based melts are heterogeneous even above the liquidus temperature. This finding helps to understand the melts of iron-based MGs and to improve the production process of iron-based glass ribbons.

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On The Glass Forming Ability Criteria Of Bulk Metallic Glasses

MRS Proceedings ◽

10.1557/proc-754-cc2.6 ◽

2002 ◽

Vol 754 ◽

Author(s):

Z. P. Lu ◽

C. T. Liu

Keyword(s):

Glass Transition ◽

Transition Temperature ◽

Metallic Glasses ◽

Glass Formation ◽

Liquidus Temperature ◽

Bulk Metallic Glasses ◽

Glass Forming Ability ◽

Glass Forming ◽

Onset Crystallization Temperature ◽

New Criterion

ABSTRACTA new criterion γ, defined as Tx/(Tg+Tl) (where Tx is the onset crystallization temperature, Tg the glass transition temperature and Tl the liquidus temperature), has been proposed for glass formation in bulk metallic glasses (BMGs). The interrelationship between this new parameter and glass-forming ability (GFA) was elaborated and discussed in comparison with other established criteria. It was found that the new criterion γ had a much better correlation with GFA than other established parameters. An approximation of the critical cooling rate for glass formation was also formulated and evaluated in the light of this new parameter.

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Determination of the glass transition temperature of metallic glasses by low-frequency internal friction measurements

Journal of Non-Crystalline Solids ◽

10.1016/s0022-3093(87)80028-5 ◽

1987 ◽

Vol 93 (1) ◽

pp. 53-66 ◽

Cited By ~ 20

Author(s):

H.-R. Sinning ◽

F. Haessner

Keyword(s):

Glass Transition ◽

Transition Temperature ◽

Glass Transition Temperature ◽

Internal Friction ◽

Metallic Glasses ◽

Low Frequency ◽

Friction Measurements

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Dependence of shear yield strain and shear transformation zone on the glass transition temperature in thin film metallic glasses

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2015.08.217 ◽

2015 ◽

Vol 652 ◽

pp. 191-199 ◽

Cited By ~ 8

Author(s):

X. Qian ◽

Q.P. Cao ◽

S.Y. Liu ◽

C. Wang ◽

X.D. Wang ◽

...

Keyword(s):

Thin Film ◽

Glass Transition ◽

Transition Temperature ◽

Glass Transition Temperature ◽

Metallic Glasses ◽

Yield Strain ◽

Transformation Zone ◽

Shear Yield ◽

Shear Transformation ◽

Shear Transformation Zone

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Thermal behavior and glass transition of Zr-based bulk metallic glasses

Materials Science and Engineering A ◽

10.1016/j.msea.2003.10.125 ◽

2004 ◽

Vol 375-377 ◽

pp. 351-354 ◽

Cited By ~ 27

Author(s):

N. Mattern ◽

U. Kühn ◽

H. Hermann ◽

S. Roth ◽

H. Vinzelberg ◽

...

Keyword(s):

Glass Transition ◽

Thermal Behavior ◽

Metallic Glasses ◽

Bulk Metallic Glasses

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Reverse Plasticity in Nanoindentation

MRS Proceedings ◽

10.1557/proc-1049-aa05-08 ◽

2007 ◽

Vol 1049 ◽

Author(s):

Yongjiang Huang ◽

Nursiani Indah Tjahyono ◽

Jun Shen ◽

Yu Lung Chiu

Keyword(s):

Mechanical Properties ◽

Plastic Deformation ◽

Glass Transition ◽

Single Crystal ◽

Metallic Glasses ◽

Deformation Mechanisms ◽

Glass Transition Temperatures ◽

Loading Rates ◽

Nanoindentation Experiment ◽

Properties Of Materials

AbstractThis paper summarises our recent cyclic nanoindentation experiment studies on a range of materials including single crystal and nanocrystalline copper, single crystal aluminium and bulk metallic glasses with different glass transition temperatures. The unloading and reloading processes of the nanoindentation curves have been analysed. The reverse plasticity will be discussed in the context of plastic deformation mechanisms involved. The effect of loading rates on the mechanical properties of materials upon cyclic loading will also be discussed.

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