Mechanochemical processing of nanocrystalline Ti-6Al-4V alloy

  • Pirzada M
  • Patankar S
  • Froes F
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Abstract

Synthesis of nanocrystalline Ti-6Al-4V was explored using mechnochemical processing. The reaction mixture comprised of CaH2, Mg powder, anhydrous AlC13, anhydrous VC13 and TiC14. The milled powder(reaction product) primarily consisted of nanocrystalline alloy hydride having a composition (Ti-6Al-4V)H1.942, along with MgCl2 and CaCl2 as by-products. Aqueous solutions of nitric acid, sulfuric acid and 1% sodium sulfite were found to be very effective in leaching of the chlorides from the milled powder. The (Ti- 6Al-4V)H1.942 on dehydrogenation at 375C resulted in nanocrystalline Ti-6Al-4V alloy powder.

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Authors

  • M. D.S. Pirzada

  • S. N. Patankar

  • F. H. Froes

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