Strengthening of L12-ordered intermetallics by fine precipitation of coherent disordered phases

M. Nemoto, H. Takesue, Zenji Horita

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The minimum creep rates of polycrystalline L12-ordered intermetallics, Ni3(Al, Ti) and Co3Ti, decrease appreciably by the fine precipitation of disordered coherent phases. Transmission electron microscope observations of the interaction between dislocations and precipitates revealed that superdislocations produced by deformation tend to be strongly attracted and dissociate as they meet the disordered coherent precipitates because the anti-phase boundary energy in the matrix is high while that in the disordered precipitates is zero.

Original languageEnglish
Pages (from-to)327-330
Number of pages4
JournalMaterials Science and Engineering A
Volume234-236
Publication statusPublished - Aug 30 1997

Fingerprint

Strengthening (metal)
Intermetallics
intermetallics
Precipitates
precipitates
antiphase boundaries
Phase boundaries
Creep
Electron microscopes
electron microscopes
matrices
interactions
energy

All Science Journal Classification (ASJC) codes

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

Cite this

Strengthening of L12-ordered intermetallics by fine precipitation of coherent disordered phases. / Nemoto, M.; Takesue, H.; Horita, Zenji.

In: Materials Science and Engineering A, Vol. 234-236, 30.08.1997, p. 327-330.

Research output: Contribution to journalArticle

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