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

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Aging Characteristics of Al P/M Composites with Variation of Ceramic Contents

  • Min, Kyung-Ho (Division of Materials Science and Engineering, Hanyang University) ;
  • Chang, Si-Young (Department of Materials Engineering, Hankuk Aviation University) ;
  • Kim, Deok-Soo (Department of Industrial Engineering, Hanyang University) ;
  • Kim, Ji-Soon (School of Materials and Metallurgical Engineering, University of Ulsan) ;
  • Kim, Young-Do (Division of Materials Science and Engineering, Hanyang University)
  • Published : 2006.09.24
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Abstract

The aging behavior of sintered Al composites with various ceramic contents was investigated. 2xxx series blended powder was used as the starting powder. Ceramic contents were 0wt.% and 5wt.%. The blended powders were compacted at 250MPa. The sintering process was performed at $620^{\circ}C$ for 60min in a $N_2$ atmosphere. Each part was solution-treated at $518^{\circ}C$ for 60min and aged at $180^{\circ}C$. The Rockwell hardness at the peak aging time increased with ceramic contents. However, the peak aging time at maximum hardness was reduced with increased ceramic contents.

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