Using polycrystal plasticity modeling to determine the effects of grain size and solid solution additions on individual deformation mechanisms in cast Mg alloys

• Published in: Scripta materialia Vol. 63; no. 7; pp. 731 - 736
• Main Authors: Raeisinia, Babak, Agnew, Sean R.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-10-2010
• Subjects: Alloys; Crystal plasticity; Grain size; Hall–Petch; Magnesium base alloys; Plasticity; Polycrystals; Shear stress; Slip; Solid solution strengthening; Solid solutions; Twinning; Grain size; Crystal plasticity; Solid solution strengthening; Hall–Petch
• ISSN: 1359-6462; 1872-8456
• DOI: 10.1016/j.scriptamat.2010.03.054

The tensile and compressive yielding of cast Mg–Zn alloys, with varying grain sizes and compositions ranging from 0 to 2.3
at.% Zn, are simulated using a polycrystal plasticity model. The results are used to determine the grain size and composition dependences of the critical resolved shear stresses (CRSS) of basal slip and tensile twinning.