Diyala Journal for Pure Science
Scientific Refereed Journal Published By College of Science - University of Diyala
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Diyala Journal For Pure Science DJPS
P- ISSN:2222-8373, E-ISSN:2518-9255
Volume 13, Issue 3, Part 1 , July. 2017
Computer simulation of the fine structures in A-B alloy
Abdul halim Kh.Ali and A. A. Al- Rubaiee
Year: 2017, Volume: 13, Issue: 3, Part: 1
Pages: 11-20, DOI: http://dx.doi.org/10.24237/djps.1303.188B
Computer simulation was used to study the fine structures of 2D- square lattice. The temperatures used in the experiment was below the TC = 770k. Within this range of temperatures, the 2D- square lattice through a chain of successive non- equilibrium configurations which is achieved through the diffusion of atoms into vacant places of lattice .The equilibrium state has been obtained by averaging a number of runs (15-16) million time steps. In equilibrium state of lattice the results showed the existence of different kinds of the fine structures (microdomains, clusters, segregations and antiphase domain boundaries). At a temperatures above TC, clusters and segregations appear and the concentration of atoms in clusters was 0.5 and in segregation 0.1. Also we noticed the changes in microdomains sizes with temperatures.
Keywords: computer simulation, alloy, diffusion, ordering (disordering process), structure, antiphase domain boundary, microdomain, clusters, segregation.