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

Akira Matsushita, Hiroto Mizuno, Toshimitsu Okane, Makoto Yoshida

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    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%.

    Original languageEnglish
    Pages (from-to)321-329
    Number of pages9
    JournalJournal of Materials Processing Technology
    Volume263
    DOIs
    Publication statusPublished - 2019 Jan 1

    Keywords

    • Aluminum
    • Analysis
    • Casting
    • Hot
    • Semi-solid
    • Solidification
    • Tearing

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Computer Science Applications
    • Metals and Alloys
    • Industrial and Manufacturing Engineering

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