In situ production of bulk intermetallic-based nanocomposites and nanostructured intermetallics by high-pressure torsion

Kaveh Edalati, Shoichi Toh, Masashi Watanabe, Zenji Horita

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

Micropowder mixtures of Al-50 mol.% Ni were severely deformed by high-pressure torsion and Al 3Ni 2/Ni nanocomposites were produced. The hardness increased with straining, as a consequence of nanograin formation and high-strain-induced solid-state reactions, and saturated to a steady-state level, 920 Hv. The reactions were completed and nanostructured AlNi intermetallics were produced by subsequent annealing. The formation of nanostructured intermetallics was feasible in this process at significantly low temperatures because of the rapid diffusion and short diffusion paths resulting from intense shearing.

Original languageEnglish
Pages (from-to)386-389
Number of pages4
JournalScripta Materialia
Volume66
Issue number6
DOIs
Publication statusPublished - Mar 2012

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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