Influence of accounting for translational motion of grains on grain growth kinetics and size distribution

0494549 - ÚFM 2019 RIV GB eng J - Journal Article
Svoboda, Jiří - Fischer, F D.
Influence of accounting for translational motion of grains on grain growth kinetics and size distribution.
Scripta Materialia. Roč. 146, MAR (2018), s. 255-259. ISSN 1359-6462. E-ISSN 1872-8456
R&D Projects: GA ČR(CZ) GA17-01641S
Institutional support: RVO:68081723
Keywords : boundaries * simulation * evolution * rotation * Grain growth * Grain boundary migration * Thermodynamics * Kinetics * Translational motion of grains
OECD category: Thermodynamics
Impact factor: 4.539, year: 2018

The thermodynamic dissipation-based approach, being one of the approved effective methods for treatment of grain growth, is refined by accounting for dissipation due to translational motion of individual grains during grain growth. The present model introduces an interaction function correlating the velocity of translational motion and the rate of growth for individual grains. The comparison of results of simulations based on the present model with existing phase-field simulations indicates that about 1/4 to 1/3 of the driving force is dissipated by translational motion of grains lowering the grain growth kinetics and changing of the steady state grain radii distribution function. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.
Permanent Link: http://hdl.handle.net/11104/0288146