| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1652289 | Materials Letters | 2008 | 4 Pages |
Abstract
The effect of grain size on the tensile deformation of Mg–MM–Al–Zn–Sn (EAZT211) alloy sheet has been investigated. Specimens with grain size varying from ~ 10 to ~ 20 μm have been obtained by altering the annealing conditions after rolling. The yield strength of EAZT211 sheet exhibits grain size dependence according to Hall–Petch relationship from room temperature to 200 °C. Occurrence of yield phenomenon and decrease of Hall–Petch slope (k) with increasing strain suggest that non-basal slip system operates during deformation. In addition, deformation mechanism changes from slip mechanism to grain boundary sliding mechanism at ~ 150 °C.
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Authors
Hyun Kyu Lim, Do Hyung Kim, Ju Youn Lee, Won Tae Kim, Do Hyang Kim,