Structural origin underlying the effect of cooling rate on solidification point

作者: Chen-Hui Li , Xiu-Jun Han , Ying-Wei Luan , Jian-Guo Li

DOI: 10.1088/1674-1056/24/11/116101

关键词:

摘要: Solidification behaviors of liquid aluminum at different cooling rates were examined via classical molecular dynamics simulation with an embedded atom method potential. The results demonstrate that solidification point decreases increasing rate. To explain this phenomenon, solid-like cluster in was analyzed by the structural analysis bond order parameters. reveal size largest deeply undercooled increase rate, which can provide a interpretation to above phenomenon.

参考文章(34)
N. A. Mauro, V. Wessels, J. C. Bendert, S. Klein, A. K. Gangopadhyay, M. J. Kramer, S. G. Hao, G. E. Rustan, A. Kreyssig, A. I. Goldman, K. F. Kelton, Short- and medium-range order in Zr 80 Pt 20 liquids Physical Review B. ,vol. 83, pp. 184109- ,(2011) , 10.1103/PHYSREVB.83.184109
Roel P. A. Dullens, Dirk G. A. L. Aarts, Willem K. Kegel, Dynamic broadening of the crystal-fluid interface of colloidal hard spheres. Physical Review Letters. ,vol. 97, pp. 228301- ,(2006) , 10.1103/PHYSREVLETT.97.228301
F Li, XJ Liu, HY Hou, G Chen, GL Chen, None, Structural origin underlying poor glass forming ability of Al metallic glass Journal of Applied Physics. ,vol. 110, pp. 013519- ,(2011) , 10.1063/1.3605510
Christoph Dellago, Wolfgang Lechner, Accurate determination of crystal structures based on averaged local bond order parameters Journal of Chemical Physics. ,vol. 129, pp. 114707- 114707 ,(2008) , 10.1063/1.2977970
M.I. Mendelev, M.J. Kramer, C.A. Becker, M. Asta, Analysis of semi-empirical interatomic potentials appropriate for simulation of crystalline and liquid Al and Cu Philosophical Magazine. ,vol. 88, pp. 1723- 1750 ,(2008) , 10.1080/14786430802206482
Urs Gasser, Eric R Weeks, Andrew Schofield, PN Pusey, DA Weitz, Real-Space Imaging of Nucleation and Growth in Colloidal Crystallization Science. ,vol. 292, pp. 258- 262 ,(2001) , 10.1126/SCIENCE.1058457
N. A. Mauro, J. C. Bendert, A. J. Vogt, J. M. Gewin, K. F. Kelton, High energy x-ray scattering studies of the local order in liquid Al. Journal of Chemical Physics. ,vol. 135, pp. 044502- 044502 ,(2011) , 10.1063/1.3609925
L.H. Xiong, H.B. Lou, X.D. Wang, T.T. Debela, Q.P. Cao, D.X. Zhang, S.Y. Wang, C.Z. Wang, J.Z. Jiang, Evolution of local atomic structure during solidification of Al2Au liquid: An ab initio study Acta Materialia. ,vol. 68, pp. 1- 8 ,(2014) , 10.1016/J.ACTAMAT.2014.01.004
Chang-Song Liu, Zhen-Gang Zhu, Jun-Chao Xia, De-Yan Sun, Different Cooling Rate Dependences of Different Microstructure Units in Aluminium Glass by Molecular Dynamics Simulation Chinese Physics Letters. ,vol. 17, pp. 34- 36 ,(2000) , 10.1088/0256-307X/17/1/012