Mechanical Properties and Fracture Behavior of Hot Extruded Mg-5Al-3Ca-xNd Alloys at Elevated Temperature

Hyeon Taek Son; Kwang Jin Lee; Yong Hwan  Kim

doi:10.4028/www.scientific.net/DDF.334-335.199

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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 334-335Mechanical Properties and Fracture Behavior of Hot...

Mechanical Properties and Fracture Behavior of Hot Extruded Mg-5Al-3Ca-xNd Alloys at Elevated Temperature

Abstract:

In this study, effects of Nd addition on mechanical properties and fracture behaviors of as-extruded Mg-5Al-3Ca based alloy were investigated by a tensile test at elevated temperatures. For all temperatures, addition of Nd elements resulted in further increase of strength both yield and ultimate strength compared to the Mg-5Al-3Ca alloy. At 150°C, the ductility in Nd-added alloys is lower than that of no-Nd addition alloy. However, at 250°C, the ductility in Nd-added alloys is improved for no-Nd addition alloy because of fine grain and suppression of grain growth by formation of thermally stable Al₂Nd intermetallic compounds.

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Periodical:

Defect and Diffusion Forum (Volumes 334-335)

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199-202

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https://doi.org/10.4028/www.scientific.net/DDF.334-335.199

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Online since:

February 2013

Authors:

Hyeon Taek Son, Kwang Jin Lee, Yong Hwan Kim

Keywords:

Extrusion, Fracture, Mechanical Property, Mg-Al-Ca Alloy, Neodymium (Nd)

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