Microstructure and Mechanical Properties of Extruded Mg-Zn-Ca Alloy

Abstract:

The as-cast Mg - 5.25 wt.% Zn - 0.6 wt.% Ca alloy was extruded at different extrusion temperatures (270, 300, and 330 °C). The extrusion temperature has a significant effect on the grain size, texture and mechanical properties of the Mg-Zn-Ca alloy. Upon extrusion, the as-cast coarse grains underwent pronounced grain refinement and the second phases were broken up and formed stringers in the extrusion direction. With the decreasing extrusion temperature to 270 °C, the grain size of the alloy was refined to about 1.5 μm, basal texture became stronger, which led to the higher tensile strength and moderate elongation to failure.

• Periodical: Materials Science Forum (Volumes 654-656)
• Pages: 703-706
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.654-656.703
• Online since: June 2010
• Authors: Ming Yi Zheng, L.B. Tong, S.W. Xu, X.S. Hu, K. Wu, S. Kamado
• Keywords: Extrusion, Mechanical Property, Mg-Zn-Ca Alloy, Microstructure, Texture

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