Image-based modeling of viscoelastic properties of solidifying Al alloys and model validation

[Display omitted] The method to predict the viscoelastic properties of solidifying alloys is proposed and validated with experiments. The method consists of 2D image-based modeling and finite element analysis.Image-based modeling is based on the water-quenched solidification microstructure. FE analy...

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Bibliographic Details
Published inJournal of materials processing technology Vol. 263; pp. 321 - 329
Main Authors Matsushita, Akira, Mizuno, Hiroto, Okane, Toshimitsu, Yoshida, Makoto
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.01.2019
Elsevier BV
Subjects
Aluminum
Aluminum base alloys
Analysis
Casting
Computer simulation
Finite element method
Hot
Magnesium base alloys
Mathematical models
Properties (attributes)
Rheological properties
Semi-solid
Semisolids
Solidification
Tearing
Tensile tests
Two dimensional analysis
Two dimensional models
Viscoelasticity
Casting
Tearing
Aluminum
Analysis
Hot
Semi-solid
Solidification
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Summary:[Display omitted] The method to predict the viscoelastic properties of solidifying alloys is proposed and validated with experiments. The method consists of 2D image-based modeling and finite element analysis.Image-based modeling is based on the water-quenched solidification microstructure. FE analysis simulates uniaxial tensile testing, using the Eulerian-Lagrangian approach in the dynamic explicit procedure. The method enables the derivation of both Young’s moduli and rheological properties of Norton’s law without semi-solid tensile tests, which are technically demanding and costly, especially in the brittle temperature range. For the Al-5%Mg alloy, the differences between the numerical and experimental properties ranged from 10 to 40%.
ISSN:0924-0136
1873-4774
DOI:10.1016/j.jmatprotec.2018.08.012