Analysis of Crystal Rotation by Taylor Theory
Simple shear along specific slip plane in polycrystalline and rotation of grains was discussed. The Taylor theory was applied to bridge between macroscopic deformation behavior and crystal plasticity and to evaluate the orientation distribution. Its theoretical solution can hardly satisfy all of boundary condition and plastic dynamics so that the condition of dynamics was simplified and relaxed in the analysis. The path of crystal rotation due to slip deformation was quantitatively predicted by Taylor theory and gave an advantage on understanding of deformation texture. The analysis method can be applied to polycrystalline materials. Although good evaluation was available in fcc and bcc where the orientation distribution fitted well, no good fitting to experimental result in hcp materials was obtained.
KeywordsTitanium Magnesium Anisotropy Recrystallization
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- 1.Taylor G.I., Plastic strain in metals. J. Inst. Metals 62, 307–324, 1938.Google Scholar
- 5.Hosford, W.F., The mechanics of crystals and textured polycrystals, Oxford Univ. Press, 56, 1993.Google Scholar
- 7.ION, S.E., Humphreys, F.J. and White, S.H., Dynamic Recrystallization and the development of microstructure during high temperature deformation of magnesium, Acta metal., 30, 1909, 1982.Google Scholar
- 8.Hutchinson W.B. and M.R. Barnett, Effective values of critical resolved shear stress for slip in polycrystalline magnesium and other hcp metals, Scripta Meter., 63, 737, 2010.Google Scholar
- 11.Helis, L., Behavior of deformation and texture formation of AZ31 and AZ61 magnesium alloys at high temperatures, Ph.D. Thesis, Yokohama National University, 2006.Google Scholar
- 12.Dillamore, I.L. and Katoh, H., The mechanisms of recrystallization in cubic metals with particular reference to their orientation-dependence, Mat. Sci.Tech., 8, 73, 1974.Google Scholar