In this paper, a three-dimensional (3D) microstructure-based finite element modeling method (i.e., extrinsic modeling method) is developed, which can be used in examining the effects of porosity on the ductility/fracture of Mg castings. For this purpose, AM60 Mg tensile samples were generated under high-pressure die-casting in a specially-designed mold. Before the tensile test, the samples were CT-scanned to obtain the pore distributions within the samples. 3D microstructure-based finite element models were then developed based on the obtained actual pore distributions of the gauge area. The input properties for the matrix material were determined by fitting the simulation result to the experimental result of a selected sample, and then used for all the other samples’ simulation. The results show that the ductility and fracture locations predicted from simulations agree well with the experimental results. This indicates that the developed 3D extrinsic modeling method may be used to examine the influence of various aspects of pore sizes/distributions as well as intrinsic properties (i.e., matrix properties) on the ductility/fracture of Mg castings.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Predicting Stress vs. Strain Behaviors of Thin-Walled High Pressure Die Cast Magnesium Alloy with Actual Pore Distribution


    Weitere Titelangaben:

    Sae Int. J. Mater. Manf
    Sae International Journal of Materials and Manufacturing


    Beteiligte:
    Barker, Erin (Autor:in) / Cheng, Guang (Autor:in) / Forsmark, Joy (Autor:in) / Choi, Kyoo Sil (Autor:in) / Li, Mei (Autor:in) / Sun, Xin (Autor:in)

    Kongress:

    SAE 2016 World Congress and Exhibition ; 2016



    Erscheinungsdatum :

    05.04.2016


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Predicting Stress vs. Strain Behaviors of Thin-Walled High Pressure Die Cast Magnesium Alloy with Actual Pore Distribution

    Choi, Kyoo Sil / Barker, Erin / Cheng, Guang et al. | British Library Conference Proceedings | 2016


    Effects of Pore Distributions on Ductility of Thin-Walled High Pressure Die-Cast Magnesium

    Choi, K.S. / Li, D. / Sun, X. et al. | British Library Conference Proceedings | 2013


    Effects of Pore Distributions on Ductility of Thin-Walled High Pressure Die-Cast Magnesium

    Li, Dongsheng / Allison, John / Choi, Kyoo Sil et al. | SAE Technical Papers | 2013


    CAST MAGNESIUM ALLOY As Cast

    SAE Technical Papers | 1941


    Fatigue Properties of High Pressure Die-Cast Magnesium AM60B Alloy

    Taheri, F. / Gharghouri, M. / Lu, Y. | SAE Technical Papers | 2007