Abstract
Hexagonal close packed (HCP) materials such as Mg, Zr, Ti, and Be are used in automotive, nuclear, aeronautic, and defense technologies. Understanding and controlling the formability of these materials is extremely relevant for these technologies. Such understanding requires an understanding of deformation twinning, an important deformation mechanism in HCP. Here we present a multi-scale modeling paradigm that passes information from the atomistic scale to the mesoscale represented by an individual grain in a polycrystalline metal. The single crystal model is, in turn, integrated into an Effective Medium model, which relates the behavior of all grains in the aggregate to the bulk response, such as stress-strain and texture evolution. This article focuses on application of the multi-scale model to HCP polycrystalline magnesium.
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Tomé, C.N., Beyerlein, I.J., Wang, J. et al. A multi-scale statistical study of twinning in magnesium. JOM 63, 19–23 (2011). https://doi.org/10.1007/s11837-011-0038-x
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DOI: https://doi.org/10.1007/s11837-011-0038-x