In this work, the solidification of liquid iron with or without external magnetic field was investigated by using two molecular dynamics methods, namely direct cooling and two-phase simulation. The influence of external magnetic field on the solidification is characterized by the critical temperature and radial distribution functions. Our computational results show that under external magnetic field, the solidification point tends to decrease significantly. By further analyzing the diffusion coefficients and viscosity, we attribute the effect to the stronger fluctuation of liquid iron atoms driven by the external magnetic field.

[1]
Y.
Shibuta
,
K.
Oguchi
,
T.
Takaki
, and
M.
Ohno
,
Sci. Rep.
5
,
1
(
2015
).
[2]
S.
Okita
,
W.
Verestek
,
S.
Sakane
,
T.
Takaki
,
M.
Ohno
, and
Y.
Shibuta
,
J. Crystal Growth
474
,
140
(
2017
).
[3]
S.
Ozgen
,
O.
Orhan
,
C. A.
Canbay
,
G. F.
Brazolin
, and
R. A. G.
Silva
,
AIP Conf. Proc.
2042
,
020039
(
2018
).
[4]
F.
Langenberg
,
G.
Pestel
, and
C.
Honeycutt
,
Transact. Metallurg. Soc. AIME
221
,
993
(
1961
).
[5]
J. K.
Roplekar
and
J. A.
Dantzig
,
Int. J. Cast Met. Res.
14
,
79
(
2001
).
[6]
C.
Vivès
,
Mater. Sci. Eng. A
173
,
169
(
1993
).
[7]
C.
Vivès
,
J. Crystal Growth
158
,
118
(
1996
).
[8]
J.
Wang
,
S.
Yue
,
Y.
Fautrelle
,
P. D.
Lee
,
X.
Li
,
Y.
Zhong
, and
Z.
Ren
,
Sci. Rep.
6
,
1
(
2016
).
[9]
Y.
Wang
,
F.
Wang
,
Y.
Chen
,
D.
Zhang
,
B.
Li
,
S.
Kang
,
X.
Li
, and
L.
Cui
,
Appl. Catal. B: Environ.
147
,
602
(
2014
).
[10]
Y.
Fang
,
Y.
Huang
,
Z.
Ni
,
Z.
Wang
,
S.
Kang
,
Y.
Wang
, and
X.
Li
,
Int. J. Electrochem. Sci.
12
,
5951
(
2017
).
[11]
S.
Plimpton
,
J. Comput. Phys.
117
,
1
(
1995
).
[12]
W. G.
Hoover
,
Phys. Rev. A
31
,
1695
(
1985
).
[13]
S.
Nosé
,
J. Chem. Phys.
81
,
511
(
1984
).
[14]
H. C.
Andersen
,
J. Chem. Phys.
72
,
2384
(
1980
).
[15]
W.
Humphrey
,
A.
Dalke
, and
K.
Schulten
,
J, Mol. Graph.
14
,
33
(
1996
).
[16]
A.
Stukowski
,
Model. Simul. Mater. Sci. Eng.
18
,
015012
(
2009
).
[17]
H.
Chamati
,
N.
Papanicolaou
,
Y.
Mishin
, and
D.
Papaconstantopoulos
,
Surf. Sci.
600
,
1793
(
2006
).
[18]
R.
Skomski
,
Simple Models of Magnetism
,
Oxford University Press
, (
2008
).
[19]
W.
Heisenberg
, in
Original Scientific Papers Wissenschaftliche Originalarbeiten
,
Springer
,
580
(
1985
).
[20]
I. D.
Mayergoyz
,
G.
Bertotti
, and
C.
Serpico
,
Nonlinear Magnetization Dynamics in Nanosystems
,
Elsevier
, (
2009
).
[21]
J.
Tranchida
,
S. J.
Plimpton
,
P.
Thibaudeau
, and
A. P.
Thompson
,
J. Comput. Phys.
372
,
406
(
2018
).
[22]
I.
Omelyan
,
I.
Mryglod
, and
R.
Folk
,
Phys. Rev. Lett.
86
,
8981
(
2001
).
[23]
D.
Frenkel
and
B.
Smit
,
Understanding Molecular Simulation: from Algorithms to Applications
,
Elsevier
, (
2001
).
[24]
J.
Brillo
,
S.
Chathoth
,
M.
Koza
, and
A.
Meyer
,
Appl. Phys. Lett.
93
,
121905
(
2008
).
[25]
X.
Teng
,
G.
Min
,
Z.
Shi
,
H.
Wang
,
H.
Liu
, and
Y.
Ye
,
Mate. Sci. Technol.
9
,
383
(
2001
).
[26]
C.
Li
,
R.
Guo
,
Z.
Yuan
,
W.
Xuan
,
Z.
Ren
,
Y.
Zhong
,
X.
Li
,
H.
Wang
, and
Q.
Wang
,
Philos. Mag. Lett.
95
,
37
(
2015
).
This content is only available via PDF.

Supplementary Material

You do not currently have access to this content.