Prediction method of crack sensitivity during DC casting of Al-Mn and Al-Mg alloys

Makoto Morishita, Mitsuhiro Abe, Kenji Tokuda, Makoto Yoshida

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    Because it has been difficult to predict crack sensitivity depending on alloy composition during aluminum direct chill casting (DC casting), a new prediction method based on the relationship between the calculated solid fraction and temperature was developed for Al-Mn and Al-Mg series aluminum alloys. In this work, two crack indexes are suggested. The first index is brittle temperature range (BTR). The second index is based on the strain rate difference in the mushy region. These indexes are quantitatively calculated by using thermodynamic software such as Thermo-calc. This method is verified by DC casting of A3000 and A5000 series aluminum alloys. It can be utilized in the alloy design stages to control the crack sensitivity before casting.

    Original languageEnglish
    Pages (from-to)166-172
    Number of pages7
    JournalMaterials Transactions
    Volume52
    Issue number2
    DOIs
    Publication statusPublished - 2011 Feb

    Fingerprint

    Casting
    cracks
    Cracks
    Aluminum alloys
    sensitivity
    predictions
    aluminum alloys
    Aluminum
    Strain rate
    Thermodynamics
    strain rate
    Temperature
    computer programs
    aluminum
    Chemical analysis
    thermodynamics
    temperature

    Keywords

    • Alloy composition
    • Direct chill (DC) casting
    • Solid fraction
    • Solidification crack

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanical Engineering
    • Mechanics of Materials

    Cite this

    Prediction method of crack sensitivity during DC casting of Al-Mn and Al-Mg alloys. / Morishita, Makoto; Abe, Mitsuhiro; Tokuda, Kenji; Yoshida, Makoto.

    In: Materials Transactions, Vol. 52, No. 2, 02.2011, p. 166-172.

    Research output: Contribution to journalArticle

    Morishita, Makoto ; Abe, Mitsuhiro ; Tokuda, Kenji ; Yoshida, Makoto. / Prediction method of crack sensitivity during DC casting of Al-Mn and Al-Mg alloys. In: Materials Transactions. 2011 ; Vol. 52, No. 2. pp. 166-172.
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