A modified hot tearing criterion for direct chill casting of aluminium alloys

Q.L. Bai, J. C. Liu, H. X. Li*, Q. Du, L. Katgerman, J. S. Zhang, L. Z. Zhuang

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    14 Citations (Scopus)


    Using the good criteria to predict hot tearing is very important during DC casting of aluminium alloys. Among all the hot tearing criteria, a fracture-mechanics based SKK criterion proposed by Suyitno et al. has made considerable improvements in the hot tearing prediction. However, its obtained hot tearing susceptibility (HTS) evolution during solidification is also not completely consistent with real industrial production circumstances, especially when approaching the solidus temperature. In this paper, some further modifications are made based on the SKK criterion to emphasise the important effect of solid bridging/grain coalescence on hot tear propagation. It is proved that the HTS evolution in freezing range predicted by the modified hot tearing criterion is in good agreement with casting practice.

    Original languageEnglish
    Pages (from-to)846-854
    JournalMaterials Science and Technology
    Issue number8
    Publication statusPublished - 2016


    • A modified hot tearing criterion
    • Direct chill casting
    • Fracture mechanics
    • Hot tearing susceptibility


    Dive into the research topics of 'A modified hot tearing criterion for direct chill casting of aluminium alloys'. Together they form a unique fingerprint.

    Cite this