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Updated: Apr 29, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Abnormal grain growth in nonequilibrium systems: effects of point defect patterning
Vasyl O Kharchenko1, Dmitrii O Kharchenko1
1Institute of Applied Physics, National Academy of Sciences of Ukraine, 58 Petropavlovskaya Street, 40000 Sumy, Ukraine.
Abstract:
We present a mean-field model for abnormal grain growth processes described by competition of both deterministic and stochastic mechanisms with the grain mobility depending on the grain size. The derived approach is applied to study delayed dynamics of grain growth in system of point defects subjected to irradiation according to the swelling rate theory for irradiated materials. We have shown that with the irradiation dose increase, the corresponding grain growth dynamics is slowed down and growth processes with power-law time asymptotics are realized. We discuss behavior of grain size distributions with competing regular and fluctuation mechanisms.
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