Journal
SCRIPTA MATERIALIA
Volume 108, Issue -, Pages 104-108Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2015.06.028
Keywords
Mg alloy; Yttrium; < c plus a > slip; Critical resolved shear stress; Molecular dynamics
Categories
Funding
- Pohang Iron and Steel Co. (POSCO) [2013Y006]
- WPM Program - Ministry of Trade, Industry and Energy, Republic of Korea
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The effect of Y addition on the slip behavior of an edge dislocation on basal, prismatic and second-order pyramidal slip planes of Mg has been investigated using a molecular dynamics simulation. It is found that Y increases the critical resolved shear stress of basal slip more than that of non-basal slip and eventually reduces the difference in the CRSS between different slip systems, which is proposed as the reason for the experimentally reported activation of (c + a) slip in Mg-Y alloys. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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