Grain Size Dependence of Yield Strength in Randomly Textured Mg-Al-Zn Alloy

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  • Wang Y. N.
    Institute of Materials Science and Engineering; Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University Institute of Materials Science and Engineering, Dalian University of Technology
  • Huang J. C.
    Institute of Materials Science and Engineering; Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University

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Abstract

The randomly textured Mg-Al-Zn alloy processed by electron beam welding typically exhibits clear grain size dependence of yield strength according to the Hall-Petch relationship: σ0.2=62+202d−1⁄2. The Schmid factor for the basal slip system was deduced to be around 0.031 in the randomly textured Mg alloys. The σ0 in the Hall-Petch equation was theoretically calculated to be ∼65 MPa, which is reasonably consistent with the experimental data of ∼62 MPa.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 48 (2), 184-188, 2007

    The Japan Institute of Metals and Materials

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