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

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
권호 표지

Effect of Powder Size of Mg-Zn-Y Alloy on the Consolidation

  • Kim, Taek-Soo (Division for Advanced Materials, Korea Institute of Industrial Technology) ;
  • Chae, H.J. (Division for Advanced Materials, Korea Institute of Industrial Technology) ;
  • Lee, J.K. (Division for Advanced Materials, Korea Institute of Industrial Technology) ;
  • Jung, H.G. (Division for Advanced Materials, Korea Institute of Industrial Technology) ;
  • Kim, Y.D. (Division of Materials Science & Engineering, Hanyang Univ.) ;
  • Bae, J.C. (Division for Advanced Materials, Korea Institute of Industrial Technology)
  • Published : 2006.09.24
Download PDF
⟨ Previous Next ⟩

Abstract

[ $MgZn_{4.3}Y_{0.7}$ ] alloy powders were prepared using an industrial scale gas atomizer, followed by warm extrusion. The powders were almost spherical in shape. The microstructure of powders as atomized and bars as extruded was examined as a function of initial powder size distribution using Scanning Electron Microscope (SEM), Energy Dispersive X-ray Spectroscope (EDS) and X-ray Diffractometer (XRD). The grain sizes were decreased with extruding as well as decreasing the initial powder sizes. Both the ultimate strength and elongation were enhanced as the initial powder sizes were decreased.

Keywords