Comparison of coarsening behaviour in non-conserved and volume-conserved isotropic two-phase grain structures

SCRIPTA MATERIALIA

卷:146

Article

Yadav, Vishal¹  Moelans, Nele¹ 

[1] Katholieke Univ Leuven, Dept Mat Engn, Kasteelpk Arenberg 44,Bus 2450, B-3001 Leuven, Belgium

关键词: Grain growth;    Bulk diffusion;    Simulations;    Phase field model;   

DOI  :  10.1016/j.scriptamat.2017.11.023

来源: Elsevier

【 摘 要 】

Microstructure evolution in non-conserved and volume-conserved isotropic two-phase grain structures, with equal interfacial energy for all interfaces and equal volume fractions of the two-phases, is compared based on large-scale phase-field simulations. Two important observations are as follows: (1) the growth mechanism has a larger effect on the grain size distributions of the two alloys than on their grain topology distributions; (2) the growth rate and normalized grain size relation of the grains per topological class are much more scattered for the conserved system than the non-conserved system. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free