An influence of vacancies and elastic deformation coupling onto phase decomposition of binary systems

Dmitrii O. Kharchenko, Vasyl O. Kharchenko, Irina O. Lysenko and Irina A. Shuda

Physica A: Statistical Mechanics and its Applications, 2017, vol. 486, issue C, 497-507

Abstract: We present a comprehensive study of phase decomposition of binary alloys by taking into account lattice mismatch, coupling of both solute and vacancy concentrations with elastic deformation and multiplicative noise satisfying fluctuation dissipation relation. We discuss scaling dynamics and universality of domain size growth. We verified numerically delaying dynamics of mean domain size growth caused by field dependent mobilities. It is shown that vacancy–deformation coupling leads to vacancies agglomeration in soft phase, it suppress phase decomposition at early stages and promotes an increase in the domain size at late stages.

Keywords: Phase decomposition; Defects; Elastic deformation; Stochastic systems (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:486:y:2017:i:c:p:497-507

DOI: 10.1016/j.physa.2017.05.053

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