한국분말재료학회지 (Journal of Powder Materials)

  • 제10권3호
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  • Pages.172-175
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  • 2003
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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Densification Behavior of Mechanically Alloyed NiAl Powder Compact during Spark-plasma Sintering and its Mechanical Property

  • Kim, Ji-Soon (School of Materials Science and Engineering, University of Ulsan) ;
  • Jung, Soon-Ho (School of Materials Science and Engineering, University of Ulsan) ;
  • Jang, Young-Il (School of Materials Science and Engineering, University of Ulsan) ;
  • Kwon, Young-Soon (School of Materials Science and Engineering, University of Ulsan)
  • 발행 : 2003.06.01
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초록

Mechanically-alloyed NiAl powder was sintered by Spark-Plasma Sintering (SPS) process. Densification and behavior mechanical property were determined from the experimental results and analysis ,such as changes in linear shrinkage, shrinkage rate, microstructure, and phase during sintering process, Victors hardness, and transver.ie-rupture-strength (TRS). Above 97% relative density was obtained after sintering at 115$0^{\circ}C$ for 5 min. Crystallite size determined by the Scherrer method was approximately 50 nm. From the X-ray diffraction analysis it was confirmed that the sintered bodies were composed mainly of NiAl phase together with Ni$_3$Al phase. Measured Vickers hardness and TRS value were 555$\pm$10 $H_v$ and 1393$\pm$75 MPa , respectively.

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참고문헌

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피인용 문헌

  1. Densification and Mechanical Property of Nanostructured NiAl Produced by Mechanical-Alloying and Spark-Plasma Sintering vol.449-452, pp.1662-9752, 2004, https://doi.org/10.4028/www.scientific.net/MSF.449-452.1101