A Modeling Study of Cyclical Phase Transformations

Jong K. Lee

doi:10.4028/www.scientific.net/MSF.475-479.3081

Paper Titles

A Study on Material Flow in Combined Extrusion Process
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Application of Processing Method Enlarging a Partial Diameter to Shaft Parts of Practical Size
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Material Flow Characteristics on the Forward and Backward Solid Extrusion Process
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Towards the First-Principles Investigation of Ordering Dynamics
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A Modeling Study of Cyclical Phase Transformations
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Defect Properties in GaN: Ab Initio and Empirical Potential Calculations
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Point Defects and Re in L1₂ Ni₃Al: Atomic Studies
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First-Principles Calculations of Titanium Dopants in Alumina
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Alloy Design Based on Molecular Orbital Method
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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479A Modeling Study of Cyclical Phase Transformations

A Modeling Study of Cyclical Phase Transformations

Abstract:

Recent work has shown evidence of cyclical phase transformations taking place during mechanical alloying. Cyclical phase transformations resemble dynamic equilibrium in the sense that both equilibrium and non-equilibrium phases are simultaneously present during milling, but phase fractions vary during cyclical transformations. A brief thermodynamic and kinetic account is first discussed to establish the criteria for cyclical transformations. A two-dimensional molecular dynamic work is then presented to demonstrate cyclical phase transitions between an equilibrium and a non-equilibrium phase during mechanical alloying. A model binary crystal made of 57 Lennard-Jones atoms is studied to illustrate cyclical transitions between an equilibrium rhombus and a non-equilibrium square phase.

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Materials Science Forum (Volumes 475-479)

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3081-3086

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.3081

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Online since:

January 2005

Authors:

Jong K. Lee

Keywords:

Free Energy Change, Mechanical Alloying (MA), Phase Transformation

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References

[1] C. C. Koch, Materials Science and Technology - A Comprehensive Treatment, ed. R. W. Cahn, P. Haasen and E. J. Kramer (VCH, Weinheim), Vol. 15 (1991), p.193.

Google Scholar

[2] R. B. Schwarz, K. L. Wong, W. L. Johnson, and B. M. Clements, J. Non-Crystalline Solids, Vol. 61/62 (1984), p.1291.

Google Scholar

[3] C. C. Koch, J. Non-Crystalline Solids, Vol. 117/118 (1990), p.670.

Google Scholar

[4] W. L. Johnson, Prog. Mater. Sc., Vol. 30 (1986), p.81.

Google Scholar

[5] M. Sherif El-Eskandarany, K. Aoki, K. Sumiyama, and K. Suzuki, Metall. and Mater. Trans., Vol. 30A (1999), p.1877.

Google Scholar

[6] M. Sherif El-Eskandarany, K. Aoki, K. Sumiyama, and K. Suzuki, Scripta Mater., Vol. 36 (1997), p.1001.

Google Scholar

[7] M. Sherif El-Eskandarany and A. Inoue, Metall. and Mater. Trans., Vol. 33A (2002), p.2145.

Google Scholar

[8] M. Sherif El-Eskandarany, K. Aoki, K. Sumiyama, and K. Suzuki, Appl. Phys. Lett., Vol. 70 (1997), p.1679.

Google Scholar

[9] M. Sluiter and Y. Kawazoe, Acta. Metall., Vol. 42 (1999), p.475.

Google Scholar

[10] X. Zhang, H. Wang, R. O. Scattergood, J. Narayan, and C. C. Koch, Acta Materialia, Vol. 50 (2002), p.3995.

Google Scholar

[11] T. H. Courtney and J. K. Lee, to be published in Phil. Mag.

Google Scholar

[12] O. Kastner, Continuum Mech. Thermodyn., Vol. 15 (2003), p.487.

Google Scholar

[13] O. Kastner, to be published in Continuum Mech. Thermodyn.

Google Scholar

[14] J. K. Lee, H. K. Chang, and W. C. Johnson, to be published in the proceedings of Cimtec 2004. 15950-159 RS RS.

Google Scholar