Quantitative Evaluation of Deformation Twinning Behavior in Polycrystalline Pure Magnesium

Takeshi Soeda; Yuichi Tadano; Seiya Hagihara

doi:10.4028/www.scientific.net/KEM.725.214

Paper Titles

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Measurement of Bauschinger Effect in Ultrafine-Grained A1070 Aluminum Rods
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A Simulation of Ferroelastic Phase Formation by Using Phase Field Model
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Quantitative Evaluation of Deformation Twinning Behavior in Polycrystalline Pure Magnesium
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Subsequent Yield Behavior of Hexagonal Metal with Rolling Texture
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On the Role of Grains in Plastic Deformation and Low Cycle Fatigue of Polycrystalline Metal
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High Temperature Deformation of Cast ZW11 Magnesium Alloy with Very Large Grain Size
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MD Analysis of Effect of Relative Humidity on Molecular Chain’s Network Structure of PEM
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 725Quantitative Evaluation of Deformation Twinning...

Quantitative Evaluation of Deformation Twinning Behavior in Polycrystalline Pure Magnesium

Abstract:

A crystal plasticity analysis of polycrystalline pure magnesium is conducted to investigate deformation twinning behavior at the crystal grain scale. A dominant factor in the onset of deformation twinning is the resolved shear stress on a twinning system. More than one twin system may simultaneously be activated in a crystal grain, resulting from inhomogeneous stress distribution caused by constraints imposed by neighboring grains. In this study, a pure magnesium polycrystal is modeled using a fine finite element mesh and analyzed using the crystal plasticity model involving deformation twinning. The evolution of deformation twinning at the crystalline scale is numerically investigated, and the present approach demonstrates that two or more twinning systems are be activated in a single crystal grain because of the strong inhomogeneity in the grain.

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Advances in Engineering Plasticity and its Application XIII

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Periodical:

Key Engineering Materials (Volume 725)

Pages:

214-219

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.725.214

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Online since:

December 2016

Authors:

Takeshi Soeda*, Yuichi Tadano, Seiya Hagihara

Keywords:

Crystal Plasticity, Deformation Twinning, HCP Metal, Polycrystal, Pure Magnesium

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References

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