Crack prediction for a partially solidified lead-free bronze casting using thermal stress analysis

Akira Matsushita, Tomoaki Nakazawa, Toshimitsu Okane, Makoto Yoshida

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    For crack prediction in permanent mold casting of lead-free bronze, elasto-viscoplastic and elasto-plastic thermal stress analyses were performed and compared with the casting tests. The elastoviscoplastic model was constructed by the method which enables to determine rheological properties without steady state stress in experiments. Maximum deviatoric principal (only by the elastoviscoplastic analysis) and hydrostatic stress were in reasonable agreement with the locations of cold cracking and hot tearing in the casting tests, respectively. It was suggested that considering the rheological properties of semi-solid alloys was important especially to predict cracks during and after solidification

    Original languageEnglish
    Pages (from-to)46-56
    Number of pages11
    JournalJournal of Materials Processing Technology
    Volume249
    DOIs
    Publication statusPublished - 2017 Nov 1

    Keywords

    • Casting
    • Cold cracking
    • Copper
    • Hot tearing
    • Semi-solid
    • Solidification

    ASJC Scopus subject areas

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

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