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|Title: ||Phase-field modeling of polycrystalline solidification, from needle crystals to spherulites: a review|
|Authors: ||Granasy, Laszlo|
Toth, Gyula I.
|Issue Date: ||2014|
|Publisher: ||© Minerals, Metals and Materials Society and ASM International|
|Citation: ||GRANASY, L. ... et al., 2014. Phase-field modeling of polycrystalline solidification, from needle crystals to spherulites: a review. Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, 45 (4), pp.1694-1719.|
|Abstract: ||Advances in the orientation-field-based phase-field (PF) models made in the past are reviewed.
The models applied incorporate homogeneous and heterogeneous nucleation of growth centers
and several mechanisms to form new grains at the perimeter of growing crystals, a phenomenon
termed growth front nucleation. Examples for PF modeling of such complex polycrystalline
structures are shown as impinging symmetric dendrites, polycrystalline growth forms (ranging
from disordered dendrites to spherulitic patterns), and various eutectic structures, including
spiraling two-phase dendrites. Simulations exploring possible control of solidification patterns
in thin films via external fields, confined geometry, particle additives, scratching/piercing the
films, etc. are also displayed. Advantages, problems, and possible solutions associated with
quantitative PF simulations are discussed briefly.|
|Sponsor: ||This review includes techniques developed in the framework of the EU FP7 Collaborative Project 'EXOMET' (Contract No. NMP-LA-2012-280421, co-funded by ESA) and ESA MAP/PECS projects 'MAGNEPHAS III' (Contract No. 4000105034/11/NL/KML) and 'GRADECET' (Contract No.
|Publisher Link: ||https://doi.org/10.1007/s11661-013-1988-0|
|Appears in Collections:||Closed Access (Maths)|
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