Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Microstructures and Mechanical Properties of Consolidated Mg-Zn-Y Alloy

  • Lee, Jin-Kyu (Advanced Materials Division, Korea Institute of Industrial Technology) ;
  • Kim, Taek-Soo (Advanced Materials Division, Korea Institute of Industrial Technology) ;
  • Jeong, Ha-Guk (Manufacturing Division, Korea Institute of Industrial Technology) ;
  • Bae, Jung-Chan (Manufacturing Division, Korea Institute of Industrial Technology)
  • Published : 2006.09.24
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Abstract

The microstructure and mechanical properties of the $Mg_{97}Zn_Y_2$ alloy prepared by spark plasma sintering of gas atomized powders have been investigated. After consolidation, precipitates were observed to form in the ${\alpha}-Mg$ solid solution matrix of the $Mg_{97}Zn_1Y_2$ alloy. These precipitates consisted of $Mg_{12}YZn$ and $Mg_{24}Y_5$ phases. The density of the consolidated bulk Mg-Zn-Y alloy was $1.86g/cm^3$. The ultimate tensile strength and elongation were dependent on the consolidation temperature, which were in the ranges of 280 to 293 MPa and 8.5 to 20.8 %, respectively.

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