For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Thermal and Mechanical Properties of the (Cu36Zr48Al8Ag8)100-xSix (x = 0–1) Amorphous Alloys
p.1627
Inhomogeneous Amorphous Structure of Bulk Metallic Glasses Examined from Structural Relaxation Kinetics
p.1632
The Prediction of Glass-Forming Compositions in Metallic Systems - The Development of New Bulk Metallic Glasses
p.1637
High Plastic Ti66Nb13Cu8Ni6.8Al6.2 Composites with In Situ β-Ti Phase Synthesized by Spark Plasma Sintering of Mechanically Alloyed Glassy Powders
p.1642
Molecular Dynamics Study on Structural Relaxation of Metallic Glasses
p.1648
Analysis of Optical Properties of GaN/AlGaN Quantum Well Ultra-Violet Laser Diode Using 6X6 Hamiltonian
p.1653
Fatigue Crack Initiation and Propagation at a Sharp Notch in Zr-Based Bulk Metallic Glass
p.1659
Glass Formation and Structural Study of Ti50Cu50 Alloy by Molecular Dynamics
p.1665
The Role of Casting Temperature in Preparation of Bulk Metallic Glasses
p.1671

Molecular Dynamics Study on Structural Relaxation of Metallic Glasses

Article Preview

Abstract:

Structural relaxation process in the Zr-Cu metallic glasses is investigated by using molecular dynamics simulations. The enthalpy change in isothermal annealing of the glassy state cannot be fitted by a simple exponential function but obeys a stretched exponential function, which indicates that the relaxation in glassy phase is not a single Debye type process. A close examination of individual atomic motion reveals that the enthalpy relaxation is related to a string-like cooperative motion of atoms. The analysis of the local symmetry around each atom shows that a network of the icosahedral clusters grows in the glassy phases during annealing and it closely relates to the free-volume annihilation in the structural relaxation.

By email View Pdf
You might also be interested in these eBooks
THERMEC 2009 View Preview

Info:

Periodical:

Materials Science Forum (Volumes 638-642)

Pages:

1648-1652

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.638-642.1648

Citation:

Cite this paper

Online since:

January 2010

Authors:

Masato Shimono, Hidehiro Onodera

Keywords:

Glass Transition, Metallic Glass, Rapid Solidification, Structural Relaxation

Export:

RIS, BibTeX

Permissions:

Creative Commons CC BY 4.0

Share:

Citation:

References

[1] A. Inoue, T. Zang and T. Masumoto: Mater. Trans. JIM 31 (1990), p.177.

Google Scholar

[2] A. Parker and W. L. Johnson: Appl. Phys. Lett. 63 (1993), p.2342.

Google Scholar

[3] M. W. Finnis and J. E. Sinclair: Pil. Mag. 50 (1984), p.45.

Google Scholar

[4] V. Rosato, M. Guillope and B. Legrand: Phil. Mag. 59 (1989), p.321.

Google Scholar

[5] M. Parrinello and A. Rahman: Phys. Rev. Lett. 45 (1980), p.1196.

Google Scholar

[6] H.C. Andersen: J. Chem. Phys. 72 (1980), p.2384.

Google Scholar

[7] C.W. Gear: Numerical Initial Value Problems in Ordinary Differential Equations (Prentice-Hall, New Jersey 1971).

Google Scholar

[8] T. Ichitsubo, E. Matasubara and H. Numakura: Mater. Sci. Eng. A 449 (2007), p.506.

Google Scholar

[9] R. Busch, E. Bakke and W.L. Johnson: Acta Mater. 46 (1998), p.4725.

Google Scholar

[10] G.J. Fan, J.F. Loffler, R.K. Wunderlich and H. -J. Fecht: Acta Mater. 52 (2004), p.667.

Google Scholar

[11] O. Haruyama, Y. Yokoyama and A. Inoue: Mater. Trans. 48 (2007), p.1708.

Google Scholar

[12] A. Ishii, F. Hori, A. Iwase, Y. Fukumoto, Y. Yokoyama and T.J. Konno: Mater. Trans. 49 (2008), p. (1975).

Google Scholar

[13] J. Saida, T. Sanada, S. Sato, M. Imafuku, E. Matsubara and A. Inoue: Mater. Trans. 48 (2007), p.1703.

DOI: 10.2320/matertrans.mj200753

Google Scholar

[14] F. Yonezawa, Solid State Physics Vol. 45, Academic Press, San Diego, (1991), p.179.

Google Scholar

[15] M. Shimono and H. Onodera: Mater. Trans. JIM 39 (1998), p.147.

Google Scholar

[16] H.W. Sheng, W.K. Luo, F.M. Alamgir, J.M. Bai and E. Ma: Nature 439 (2006), p.419.

Google Scholar

[17] M. Shimono and H. Onodera: Mater. Sci. Forum Vol. 539-543 (2007), p. (2031).

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.