Influence of Light Impurities on the Crystal-Melt Interface Velocity in Ni and Ag. Molecular Dynamics Simulation

被引：16

作者：

Poletaev, G. M. ^{[1
]}

Zorya, I., V ^{[2
]}

机构：

[1] Polzunov Altai State Tech Univ, Barnaul 656038, Russia

[2] Siberian State Ind Univ, Novokuznetsk 654007, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2020年 / 46卷 / 06期

关键词：

molecular dynamics; metal; crystallization; impurity; crystal-melt interface; POTENTIALS; METALS; ATOMS;

D O I：

10.1134/S1063785020060231

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of impurities of light elements (C, N, and O) on the crystal-melt interface velocity in fcc metals (Ni and Ag) has been investigated by the molecular dynamics method. Dependences of the crystallization rate on the impurity concentration are obtained. It is shown that the presence of impurities reduces significantly the crystal-melt interface velocity in metals. Impurity atoms induce local lattice strain, which leads to deceleration of the crystal-melt interface; as a rule, the stronger this strain is, the more significant the deceleration of the crystal-melt interface by impurity atoms is.

引用

页码：575 / 578

页数：4

共 14 条

[1] [Anonymous], 1960, NATURE CHEM BOND STR
[2] Solidification Velocities in Deeply Undercooled Silver
Chan, Wai-Lun
Averback, Robert S.
Cahill, David G.
Ashkenazy, Yinon
[J]. PHYSICAL REVIEW LETTERS, 2009, 102 (09)
[3] TIGHT-BINDING POTENTIALS FOR TRANSITION-METALS AND ALLOYS
CLERI, F
ROSATO, V
[J]. PHYSICAL REVIEW B, 1993, 48 (01): : 22 - 33
[4] Thermodynamics of rapid solidification and crystal growth kinetics in glass-forming alloys
Galenko, P. K.
Ankudinov, V.
Reuther, K.
Rettenmayr, M.
Salhoumi, A.
Kharanzhevskiy, E. V.
[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2019, 377 (2143):
[5] Goldschmidt H.J., 1967, Interstitial Alloys
[6] Jha S. K., 2017, Resource-Efficient Technologies, V3, P94, DOI 10.1016/j.reffit.2017.01.002
[7] Kinetic melting and crystallization stages of strongly superheated and supercooled metals
Mazhukin V.I.
Shapranov A.V.
Perezhigin V.E.
Koroleva O.N.
Mazhukin A.V.
[J]. Mathematical Models and Computer Simulations, 2017, 9 (4) : 448 - 456
[8] Molecular dynamics simulation of the solid-liquid interface migration in terbium
Mendelev, M. I.
Zhang, F.
Song, H.
Sun, Y.
Wang, C. Z.
Ho, K. M.
[J]. JOURNAL OF CHEMICAL PHYSICS, 2018, 148 (21)
[9] The research of the structure of amorphous metals by molecular dynamics method
Poletaev, G. M.
Krasnov, V. Yu
Starostenkov, M. D.
Medvedev, N. N.
[J]. 13TH INTERNATIONAL CONFERENCE ON LIQUID AND AMORPHOUS METALS, 2008, 98
[10] Effect of carbon and oxygen impurity atoms on the migration rate of tilt boundaries in fcc metals: a molecular dynamics simulation
Poletaev, G. M.
Zorya, I. V.
Rakitin, R. Y.
Iliina, M. A.
Starostenkov, M. D.
[J]. LETTERS ON MATERIALS, 2019, 9 (04): : 391 - 394

← 1 2 →