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Partition of Er among the constituent phases and the yield phenomenon in a semi-continuously cast Mg-Zn-Zr alloy

Zhang, J; Zhang, XF; Li, WG; Pan, FS; Guo, ZX; (2010) Partition of Er among the constituent phases and the yield phenomenon in a semi-continuously cast Mg-Zn-Zr alloy. SCRIPTA MATER , 63 (4) 367 - 370. 10.1016/j.scriptamat.2010.04.015.

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Abstract

This paper describes an increased partition of a rare earth element Er to the Mg matrix in a semi-continuously cast Mg-1.5Zn-0.6Zr alloy, resulting in a significant increase in elongation, as well as a refined grain size and a higher yield strength in the extruded Er-containing alloys compared with the Er-free alloy. Yield phenomena with distinct upper and lower yield points were also observed, caused by the strong interaction between solute atoms and dislocations as a result of Er addition. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Type:Article
Title:Partition of Er among the constituent phases and the yield phenomenon in a semi-continuously cast Mg-Zn-Zr alloy
DOI:10.1016/j.scriptamat.2010.04.015
Keywords:Magnesium alloys, Rare earth, Yield phenomena, Solidification microstructure, MECHANICAL-PROPERTIES, RARE-EARTH, DEFORMATION-BEHAVIOR, MAGNESIUM ALLOY, MICROSTRUCTURE, TEXTURE, DUCTILITY
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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