Prediction of hot tearing for a partially solidified bismuth bronze by using finite element method analysis

Akira Matsushita, Tomoaki Nakazawa, Toshimitsu Okane, Makoto Yoshida

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    The aim of this study is the prediction of solidification cracking, or hot tearing, for bismuth bronze by fluid flow, solidification, and thermal stress analysis. Constitutive equation required for the analysis was experimentally constructed as a viscoelastic equation by using tensile and relaxation test in the partially solidified state. For the purpose of predicting crack defects, some parameters were examined as cracking criteria, e.g. hot tearing indicator (HTI) which is the equivalent plastic strain during solidification [1]. The prediction results were compared with crack locations of the experimental castings by a copper mold in order to validate the analysis. As a result, there was a reasonable correlation between the distribution of HTI and cracking occurred during solidification.

    Original languageEnglish
    Title of host publication72nd World Foundry Congress, WFC 2016
    PublisherThe WFO (The World Foundry Organization Ltd)
    Number of pages2
    ISBN (Electronic)9781510833128
    Publication statusPublished - 2016
    Event72nd World Foundry Congress, WFC 2016 - Nagoya, Japan
    Duration: 2016 May 212016 May 25


    Other72nd World Foundry Congress, WFC 2016


    • Hot tearing
    • Semi-solid
    • Solidification cracking
    • Thermal stress analysis
    • Viscoelastic

    ASJC Scopus subject areas

    • Materials Chemistry
    • Metals and Alloys


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