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Powder Fabrication of Nb-Ti Alloys Using Hydrogenation Process

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  • URLhttps://db.koreascholar.com/Article/Detail/4237
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한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

Nb-Ti alloys were hydrogenated to prepare fine and contamination-free powders. Cracks were introduced in the alloys when they were annealed at 1473 K and cooled in a hydrogen atmosphere. The fragments produced by hydrogen-induced cracking are brittle and the friability enhanced with the Ti content of the alloy, which is beneficial for further refinement of particle size. We also demonstrate that Nb-Ti powders with the average particle size less than 1 m can be produced by ball milling at a temperature lower than 203 K. Furthermore, hydrogen-free powders can then be obtained by annealing above the temperature corresponding to hydrogen desorption from Nb solid solution.

저자
  • Shuji
  • Hanada
  • Toyohiko J.
  • Konno
  • Naoya
  • Masahashi
  • Satoshi
  • Semboshi