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Interpretation of precipitation crystallography of Mg17Al12 in a Mg-Al alloy in terms of singular interfacial structure

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Abstract

This work applies a constrained coincidence site lattice/constrained complete pattern shift lattice (CCSL/CDSCL) model and secondary O-lattice model to simulate the interfacial structure in the major side interface of Mg17Al12/Mg. The result shows that, at the orientation relationship (OR) with a small deviation (∼0.5 deg) from the Burgers OR, the secondary misfit in the interface normal to the parallel Δg vectors can be completely accommodated by the steps. The secondary dislocation networks in the habit plane and major side facet have been calculated.

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Authors and Affiliations

  1. the Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, P.R. China

    M. Zhang (Ph.D. Student), F. Ye (Ph.D. Student) & W. -Z. Zhang (Professor)

Authors
  1. M. Zhang
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  2. F. Ye
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  3. W. -Z. Zhang
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Additional information

This article is based on a presentation made in the symposium entitled “Phase Transformations and Deformation in Magnesium Alloys,” which occurred during the Spring TMS meeting, March 14–17, 2004, in Charlotte, NC, under the auspices of ASM-MSCTS Phase Transformations Committee.

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Zhang, M., Ye, F. & Zhang, W.Z. Interpretation of precipitation crystallography of Mg17Al12 in a Mg-Al alloy in terms of singular interfacial structure. Metall Mater Trans A 36, 1681–1688 (2005). https://doi.org/10.1007/s11661-005-0031-5

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  • DOI: https://doi.org/10.1007/s11661-005-0031-5

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