A Dislocation-Based Crystal Plasticity Simulation on Kink Band Formation and Evolution in Polycrystalline Mg Alloy with LPSO Phase

Ryo Ueta; Kazuyuki Shizawa

doi:10.4028/www.scientific.net/KEM.626.281

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 626A Dislocation-Based Crystal Plasticity Simulation...

A Dislocation-Based Crystal Plasticity Simulation on Kink Band Formation and Evolution in Polycrystalline Mg Alloy with LPSO Phase

Abstract:

A three-dimensional compression analysis is performed by finite element method using a dislocation-based crystal plasticity model to clarify the formation mechanism of kink band in a polycrystalline Mg alloy with a long-period stacking ordered structure (LPSO) phase. The crystalline structure of LPSO phase is regarded as a HCP for simplicity, however, any deformation twinning is not taken into account. In addition, the activities of non-basal systems are considerably limited in the LPSO phase setting the values of their critical resolved shear stresses to large ones. We analyze a simple polycrystalline specimen composed of two α-Mg matrix phases and a LPSO phase both having a rectangular shape and twist grain boundaries are introduced into the interface. The obtained result shows that the kink band formation in the alloy is accomplished by the basal slips with different variants and the non-basal slips are activated on the grain boundary to maintain the continuity of deformation.

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Periodical:

Key Engineering Materials (Volume 626)

Pages:

281-286

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.626.281

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Online since:

August 2014

Authors:

Ryo Ueta*, Kazuyuki Shizawa

Keywords:

Crystal Plasticity, Deformation Kink, Dislocation, Finite Element Method (FEM), LPSO Phase, Magnesium Alloy

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References

[1] Y. Kawamura, K. Hayashi, A. Inoue and T. Masumoto, Mater. Trans., 42 (2001) 1172-1176.

Google Scholar

[2] K. Hagihara, A. Kinoshita, Y. Sugino, M. Yamasaki, Y. Kawamura, H. Y. Yasuda and Y. Umakoshi, Trans. Nonferrous Met. Soc. China, 20 (2010) 1259-1268.

DOI: 10.1016/s1003-6326(09)60288-0

Google Scholar

[3] K. Hagihara, N. Yokotani and Y. Umakoshi, Intermetallics, 18 (2010) 267-276.

Google Scholar

[4] X. H. Shao, Z. Q. Yang and X. L. Ma, Acta Mater., 58 (2010) 4760-4771.

Google Scholar

[5] S. Forest, Acta mater., 46 (1998) 3265-3281.

Google Scholar

[6] R. Matsumoto, M. Uranagase and N. Miyazaki, Mater. Trans., 54 (2013) 686-692.

Google Scholar

[7] D. Egusa and E. Abe, Acta Mater., 60 (2012) 166-178.

Google Scholar