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

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Microstructure and Properties of Plasma Spray Coatings Prepared from Ti-Zr-Ni Quasicrystalline Powders

  • Seok, H.K. (Advanced Metal Research Center, Korea Institute of Science & Technology) ;
  • Kim, Y.C. (Advanced Metal Research Center, Korea Institute of Science & Technology) ;
  • Prima, F. (LPCS-LMS ENSCP) ;
  • Fleury, E. (Advanced Metal Research Center, Korea Institute of Science & Technology)
  • Published : 2006.09.24
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Abstract

Ti-Zr-Ni coatings deposited by low vacuum plasma spray technique consisted of nanometer-sized $W-Ti_{50}Zr_{35}Ni_{15}$ 1/1 cubic approximant and TiZrNi Laves phases as well as a low volume fraction of $ZrO_2$ phase. The shift of composition during deposition of the quasicrystalline powders and the presence of $ZrO_2$ phases are believed to be responsible for the reduced corrosion performances evaluated by means of electrochemical tests in a Hanks' Balance Salt Solution at $37^{\circ}C$.

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