Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Sintering Behavior of 7xxx Series Al Blended Powder with Variation of Heating Rate

7xxx계 Al 혼합분말의 승온속도에 따른 소결거동

  • Kang Shin Pil (Division of Materials Science and Engineering, Hanyang University) ;
  • Min Kyung Ho (Division of Materials Science and Engineering, Hanyang University) ;
  • Park Hyun Woo (Division of Materials Science and Engineering, Hanyang University) ;
  • Chang Si-Young (Department of Materials Engineering, Hankuk Aviation University) ;
  • Kim Young Do (Division of Materials Science and Engineering, Hanyang University)
  • 강신필 (한양대학교 신소재공학과) ;
  • 민경호 (한양대학교 신소재공학과) ;
  • 박현우 (한양대학교 신소재공학과) ;
  • 장시영 (한국항공대학교 항공재료공학과) ;
  • 김영도 (한양대학교 신소재공학과)
  • Published : 2005.04.01
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Abstract

7xxx series Al alloy has the most attractive properties including its excellent high specific strength, stress corrosion cracking and corrosion-resistance. However, in case of the Al-Zn system, the liquid phase has a transient aspect because of the high solid solubility of Zn in Al. Therefore, transient liquid phase sintering behavior was observed during the sintering process. And the amount of liquid and its duration were influenced by the process variables including heating rate and final sintering temperature. At high heating rates($100^{\circ}C/min$), the liquid fraction increased during sintering because diffusion was minimized and therefore local saturation could easily occur. The sintered density increased with increasing heating rate.

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References

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