scholarly journals Universal structural parameter to quantitatively predict metallic glass properties

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Jun Ding ◽  
Yong-Qiang Cheng ◽  
Howard Sheng ◽  
Mark Asta ◽  
Robert O. Ritchie ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Structural Parameter ◽  
Glass Properties

Flow units perspective on sensitivity and reliability of metallic glass properties

2016 ◽  
Vol 69 ◽  
pp. 98-102 ◽  
Author(s):  
A. Gulzar ◽  
Z.G. Zhu ◽  
K. Shahzad ◽  
D.Q. Zhao ◽  
W.H. Wang
Keyword(s):  
Metallic Glass ◽  
Flow Units ◽  
Glass Properties

SIMULATING THE EFFECT OF POISSON RATIO ON METALLIC GLASS PROPERTIES

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1229-1234 ◽  
Author(s):  
JAMES R. MORRIS ◽  
RACHEL S. AGA ◽  
TAKESHI EGAMI ◽  
VALENTIN A. LEVASHOV
Keyword(s):  
Glass Transition ◽  
Liquid Phase ◽  
Metallic Glass ◽  
Low Temperatures ◽  
Poisson Ratio ◽  
Liquid Structure ◽  
Higher Temperature ◽  
Measurable Change ◽  
Lower Melting Temperature ◽  
Glass Properties

Recent work has shown that many metallic glass properties correlate with the Poisson ratio of the glass. We have developed a new model for simulating the atomistic behavior of liquids and glasses that allows us to change the Poisson ratio, while keeping the crystalline phase cohesive energy, lattice constant, and bulk modulus fixed. A number of liquid and glass properties are shown to be directly affected by the Poisson ratio. An increasing Poisson ratio stabilizes the liquid structure relative to the crystal phase, as indicated by a significantly lower melting temperature and by a lower enthalpy of the liquid phase. The liquids clearly exhibit two changes in behavior: one at low temperatures, associated with the conventional glass transition Tg, and a second, higher temperature change associated with the shear properties of the liquids. This second crossover has a characteristic, measurable change in the liquid structure.

Pd40Ni40Si5P15 bulk metallic glass properties variation as a function of sample thickness

2013 ◽  
Vol 33 ◽  
pp. 67-72 ◽  
Author(s):  
D.V. Louzguine-Luzgin ◽  
N. Chen ◽  
V.Yu. Zadorozhnyy ◽  
I. Seki ◽  
A. Inoue
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Sample Thickness ◽  
Glass Properties

Metallic glass properties, processing method and development perspective: a review

2021 ◽  
Author(s):  
Qayyum Halim ◽  
Nik Abdullah Nik Mohamed ◽  
Mohd Ruzaimi Mat Rejab ◽  
Wan Naimah Wan Abdul Naim ◽  
Quanjin Ma
Keyword(s):  
Metallic Glass ◽  
Processing Method ◽  
Development Perspective ◽  
Glass Properties

Enhancement of metallic glass properties of Cu-based BMG coating by shroud plasma spraying

2011 ◽  
Vol 205 (8-9) ◽  
pp. 3020-3026 ◽  
Author(s):  
Junghwan Kim ◽  
Kicheol Kang ◽  
Sanghoon Yoon ◽  
Changhee Lee
Keyword(s):  
Metallic Glass ◽  
Plasma Spraying ◽  
Glass Properties

scholarly journals Atomic-scale homogeneous plastic flow beyond near-theoretical yield stress in a metallic glass

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Jiaxin Yu ◽  
Amit Datye ◽  
Zheng Chen ◽  
Chao Zhou ◽  
Omur E. Dagdeviren ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Yield Stress ◽  
Plastic Flow ◽  
Flow Behavior ◽  
Atomic Scale ◽  
Force Microscopy ◽  
Theoretical Yield ◽  
Atomic Force ◽  
Insight Into ◽  
Glass Properties

AbstractThe onset of yielding and the related atomic-scale plastic flow behavior of bulk metallic glasses at room temperature have not been fully understood due to the difficulty in performing the atomic-scale plastic deformation experiments needed to gain direct insight into the underlying fundamental deformation mechanisms. Here we overcome these limitations by combining a unique sample preparation method with atomic force microscopy-based indentation, which allows study of the yield stress, onset of yielding, and atomic-scale plastic flow of a platinum-based bulk metallic glass in volumes containing as little as approximately 1000 atoms. Yield stresses markedly higher than in conventional nanoindentation testing were observed, surpassing predictions from current models that relate yield stress to tested volumes; subsequent flow was then established to be homogeneous without exhibiting collective shear localization or loading rate dependence. Overall, variations in glass properties due to fluctuations of free volume are found to be much smaller than previously suggested.

Structural analysis of a binary metallic glass model. I. — The Pd80Si20 alloy

1985 ◽  
Vol 46 (2) ◽  
pp. 235-241 ◽  
Author(s):  
F. Lançon ◽  
L. Billard ◽  
J. Laugier ◽  
A. Chamberod
Keyword(s):  
Structural Analysis ◽  
Metallic Glass ◽  
Glass Model
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