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000890227 1001_ $$0P:(DE-HGF)0$$aGanesan, Hariprasath$$b0
000890227 245__ $$aParallel hybrid Monte Carlo / Molecular Statics for Simulation of Solute Segregation in Solids
000890227 260__ $$aBristol$$bIOP Publ.87703$$c2021
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000890227 520__ $$aA parallel hybrid Monte Carlo/molecular statics method is presented for studying segregation of interstitial atoms in the solid state. The method is based on the efficient use of virtual atoms as placeholders to find energetically favorable sites for interstitials in a distorted environment. MC trial moves perform an exchange between a randomly chosen virtual atom with a carbon atom followed by a short energy minimization via MS to relax the lattice distortion. The proposed hybrid method is capable of modeling solute segregation in deformed crystalline metallic materials with a moderate MC efficiency. To improve sampling efficiency, the scheme is extended towards a biased MC approach, which takes into account the history of successful trial moves in the system. Parallelization of the hybrid MC/MS method is achieved by a Manager-Worker model which applies a speculative execution of trial moves, which are asynchronously executed on the cores. The technique is applied to an Fe-C system including a dislocation as a symmetry breaking perturbation in the system.
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000890227 7001_ $$0P:(DE-HGF)0$$aLongsworth, Margarita$$b1
000890227 7001_ $$0P:(DE-Juel1)132274$$aSutmann, Godehard$$b2$$eCorresponding author
000890227 77318 $$2Crossref$$3journal-article$$a10.1088/1742-6596/1740/1/012001$$bIOP Publishing$$d2021-01-01$$n1$$p012001$$tJournal of Physics: Conference Series$$v1740$$x1742-6588$$y2021
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