Abstract
Thermodynamic and kinetic properties of crystal-melt (c-m) interface were computed for both BCC and FCC phases of Fe by molecular-dynamics simulation. Two Sutton-Chen potentials were adopted to describe the two solid phases of Fe. Firstly discussed is the anisotropy of melting point in different interfacial orientation which is calculated by two different methods (the coexisting phase method(CPM) and the interfacial velocity methods(IVM)). Free solidification simulations were used to determine the kinetic coefficient μ of the c-m interface. The anisotropy of of μ with respect to growth direction is μ 100 > μ110, μ100 > μ111 for the BCC phase and μ100 > μ110 ~ μ111 for the FCC phase, and the kinetic coefficients of BCC are larger than the counterparts for he FCC. Through the interfacial roughness of BCC-Fe under supercooling/superheating, the slight asymmetry between melting and solidifying can be observed too.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
A. Hashibon, et al., “Ordering at solid-liquid interfaces between dissimilar materials,” Interface Science, 2001. 9(3–4): p. 175–181.
B.B. Laird and A. Haymet, “The crystal/liquid interface: structure and properties from computer simulation,” Chemical Reviews, 1992. 92(8): p. 1819–1837.
V.G. Baidakov, S.P. Protsenko, and A.O. Tipeev, “Surface Free Energy of the Crystal-Liquid Interface on the Metastable Extension of the Melting Curve,” Jetp Letters, 2014. 98(12): p. 801–804.
RL. Davidchack and B.B. Laird, “Crystal structure and interaction dependence of the crystal-melt interfacial free energy,” Physical review letters, 2005. 94(8).
J.R. Morris, et al., “The anisotropic free energy of the solid-liquid phase boundary in Al,” Interface Science, 2002. 10(2–3): p. 143–148.
Y.H. Liu, et al., “Molecular dynamics simulation of phase transformation of γ-Fe→δ-Fe→liquid Fe in continuous temperature rise process,” Acta Metallurgica Sinica, 2010. 46(2): p. 172~178.
S.N. Luo, A. Strachan, and D.C. Swift, “Nonequilibrium melting and crystallization of a model Lennard-Jones system,” Journal of Chemical Physics, 2004. 120(24): p. 11640–11649.
J.R. Morris and X. Song, “The melting lines of model systems calculated from coexistence simulations,” The Journal of Chemical Physics, 2002. 116(21): p. 9352~9358.
Y. Shibuta, S. Takamoto, and T. Suzuki, “A molecular dynamics study of the energy and structure of the symmetric tilt boundary of iron,” ISIJ international, 2008. 48(11): p. 1582~1591.
A.T. Dinsdale, “SGTE data for pure elements,” Calphad, 1991. 15(4): p. 317–425.
D.Y. Sun, M. Asta, and J.J. Hoyt, “Kinetic coefficient of Ni solid-liquid interfaces from molecular-dynamics simulations,” Physical Review B, 2004. 69(2): p. 024108.
V. Sorkin, E. Polturak, and J. Adler, “Molecular dynamics study of melting of the bcc metal vanadium. II. Thermodynamic melting,” Physical Review B, 2003. 68(17): p. 174103.
J. Broughton, G. Gilmer, and K. Jackson, “Crystallization rates of a Lennard-Jones liquid,” Physical review letters, 1982. 49(20): p. 1496.
H.W. Wilson, “XX. On the velocity of solidification and viscosity of super-cooled liquids,” The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1900. 50(303): p. 238–250.
Y. Ashkenazy and R.S. Averback, “Kinetic stages in the crystallization of deeply undercooled body-centered-cubic and face-centered-cubic metals,” Acta Materialia, 2010. 58(2): p. 524–530.
E. Burke, J.Q. Broughton, and G.H. Gilmer, “Crystallization of fcc (111) and (100) crystal-melt interfaces: A comparison by molecular dynamics for the Lennard-Jones system,” The Journal of Chemical Physics, 1988. 89(2): p. 1030~1041.
H.E.A. Huitema, M.J. Vlot, and J.P. van der Eerden, “Simulations of crystal growth from Lennard-Jones melt: Detailed measurements of the interface structure,” The Journal of Chemical Physics, 1999. 111(10): p. 4714~4723.
D.Y. Sun, M. Asta, and J.J. Hoyt, “Crystal-melt interfacial free energies and mobilities in fcc and bcc Fe,” Physical Review B, 2004. 69(17).
M.W. Finnis and J.E. Sinclair, “A simple empirical N-body potential for transition metals,” Philosophical Magazine A, 1984. 50(1): p. 45~55.
J.J. Hoyt, et al., “Kinetic phase field parameters for the Cu-Ni system derived from atomistic computations,” Acta Materialia, 1999. 47(11): p. 3181–3187.
Z.G. Xia, et al., “Molecular dynamics calculations of the crystal-melt interfacial mobility for hexagonal close-packed Mg,” Physical Review B, 2007. 75(1): p. 012103.
A.P. Sutton and J. Chen, “Long-range Finnis–Sinclair potentials,” Philosophical Magazine Letters, 1990. 61(3): p. 139~146.
T. Shen, et al., “Size dependence and phase transition during melting of fcc-Fe nanoparticles: A molecular dynamics simulation,” Applied Surface Science, 2013. 277: p. 7–14.
T. Shen, Y. Wu, and X. Lu, “Structural evolution of five-fold twins during the solidification of Fe5601 nanoparticle: a molecular dynamics simulation,” Journal of Molecular Modeling, 2013. 19(2): p. 751~755.
Y. Wu, T. Shen, and X. Lu, “Evolutions of lamellar structure during melting and solidification of Fe9577 nanoparticle from molecular dynamics simulations,” Chemical Physics Letters, 2013. 564: p. 41~46.
W. Lechner and C. Dellago, “Accurate determination of crystal structures based on averaged local bond order parameters,” The Journal of Chemical Physics, 2008. 129(11): p. 114707.
C.H. Rycroft, “VORO++: A three-dimensional Voronoi cell library in C++,” Chaos: An Interdisciplinary Journal of Nonlinear Science, 2009. 19(4): p. ~.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2016 TMS (The Minerals, Metals & Materials Society)
About this paper
Cite this paper
Lv, L., Jiang, Y., Wu, Y., Xiao, J. (2016). Anisotropy of Crystal-Melt Interface of BCC-Fe and FCC-Fe from Molecular Dynamics Simulation. In: TMS 2016 145th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48254-5_39
Download citation
DOI: https://doi.org/10.1007/978-3-319-48254-5_39
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48624-6
Online ISBN: 978-3-319-48254-5
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)