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Numerical Simulation for Grain Refinement of Aluminum Alloy by Multi-phase-field Model Coupled with CALPHAD
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2009 (English)In: ISIJ International, ISSN 0915-1559, Vol. 49, no 7, 1019-1023 p.Article in journal (Refereed) Published
Abstract [en]

The multi-phase field method and CALPHAD (calculation of phase diagram) are applied to the study of the equiaxed solidifications in the Al-Ti-B and Al-Si-Ti-B systems by coupled with thermodynamic and diffusion databases. In these calculations, recalescence phenomenon is considered on the basis of the latent heat, and a plot of the seed density-radius distribution is obtained by calibration with experimental data. The calculated solidified-grain sizes are in quantitative agreement with the experimental measurements for various hypoperitectic compositions.

Place, publisher, year, edition, pages
2009. Vol. 49, no 7, 1019-1023 p.
Keyword [en]
solidification, equiaxed, aluminum alloy, phase field method, grain size, refinement
National Category
Metallurgy and Metallic Materials
URN: urn:nbn:se:kth:diva-30752DOI: 10.2355/isijinternational.49.1019ISI: 000268361800012ScopusID: 2-s2.0-70350103268OAI: diva2:401837
QC 20110304 Conference on Cutting Edge of Studies in Inclusions and Precipitates Behavior Related to Microstructure Control, Kumamoto, JAPAN, SEP, 2008Available from: 2011-03-04 Created: 2011-03-04 Last updated: 2011-03-04Bibliographically approved

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