Predicting the tortuous three dimensional morphology of microporosity in aluminum alloys

Junsheng Wang, Robert C. Atwood, Ludovic Thuinet, Peter D. Lee

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    A microscale model is presented to predict the complex interaction of pores and the developing solid microstructure. The 3D simulation results illustrate how the pore growth is influenced by both the grain and dendritic structure, forming highly tortuous and irregular shapes. Methods to quantify the 3D structures are proposed and used to qualitatively compare the predicted size and tortuosity of the porosity to experimental observations using x-ray micro-tomography. The predicted average and extreme sizes closely matched those observed in Al 12Cu wedge castings.
    Original languageEnglish
    Title of host publicationTMS Annual Meeting|TMS Annu Meet
    Pages217-224
    Number of pages7
    Publication statusPublished - 2007
    EventSHAPE CASTING: 2nd International Symposium - Orlando, FL
    Duration: 1 Jul 2007 → …

    Conference

    ConferenceSHAPE CASTING: 2nd International Symposium
    CityOrlando, FL
    Period1/07/07 → …

    Keywords

    • Aluminum alloys
    • Casting
    • Microporosity
    • Simulation
    • X-ray micro-tomography

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