Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Fabrication and Properties of High Strength Hypereutectic Al-Si Powder by Gas Atomization Process I. Powder Production and Compressibility

가스분무 공정에 의한 고강도 과공정 Al-Si 합금 분말의 제조 및 특성 연구 I. 분말 제조 및 성형성

  • Kim Yong-Jin (Korea Institute of Machinery and Materials, Powder Materials Research Center) ;
  • Kim Jin-Chun (Korea Institute of Machinery and Materials, Powder Materials Research Center)
  • 김용진 (한국기계연구원 분말재료연구센터) ;
  • 김진천 (한국기계연구원 분말재료연구센터)
  • Published : 2005.08.01
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Abstract

In order to improve mechanical properties, the hypereutectic Al-20 wt%Si based prealloy powder was prepared by gas atomization process. Microstructure and compressibility of the atomized Al-Si powder were investigated. The average powder size was decreased with increasing the atomization gas pressure. Size of primary Si particles of the as-atomized powder was about $5-8\;\mu{m}$. The as-atomized Al-Si powder such as AMB 2712 and AMB 7775 to increase compressibility and sinterability. Relative density of the mixed powder samples sintered at $600^{\circ}C$ was reached about 96% of a theoretical density.

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References

  1. Aluminum Industry Technology Roadmap, the Aluminum Association, Washington (2003)
  2. J. M. Torralba, C. E. da Costa and F. Velasco: J. Materials Processing Technology, 133 (2003) 203 https://doi.org/10.1016/S0924-0136(02)00234-0
  3. Automotive Lightweighting Materials, FY 2002 Progress Report (2002)
  4. P. Delarbre and M. Krehl: Sinterstahl GmbH Report (2001)
  5. H. Yamagata: Materials Science Forum, 797 (1999) 304
  6. T. Ohmi, M. Judo, K. Ohsasa, Y. Itoh, K, Matsuura and K. Ishii: J. Japnanes Light Metals, 44 (1994) 91 https://doi.org/10.2464/jilm.44.91
  7. T. B. Massalski: Binary Alloy Phase Diagrams, Metals Park, Ohio (1986) 106
  8. T. B. Massalski: Binary Alloy Phase Diagrams, Metals Park, Ohio (1986) 165
  9. T. B. Massalski: Binary Alloy Phase Diagrams, Metals Park, Ohio (1986) 112
  10. 민경호, 김대건, 장시영, 임태환, 김영도: 한국분말야금학회지, 10 (2003) 40
  11. 공민석, 배이대, 민경호, Panyu, 장시영, 김영도: 한국 분말야금학회지, 11 (2004) 69