Grain Size Dependence of Yield Strength in Randomly Textured Mg-Al-Zn Alloy
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: σ<SUB>0.2</SUB>=62+202<I>d</I><SUP>−1⁄2</SUP>. The Schmid factor for the basal slip system was deduced to be around 0.031 in the randomly textured Mg alloys. The σ<SUB>0</SUB> in the Hall-Petch equation was theoretically calculated to be ∼65 MPa, which is reasonably consistent with the experimental data of ∼62 MPa.
- Materials transactions
Materials transactions 48(2), 184-188, 2007-02-01
The Japan Institute of Metals and Materials