Study of the nanostructure of Gum Metal using energy-filtered transmission electron microscopy

T. Yano, Y. Murakami, D. Shindo, S. Kuramoto

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

The nanostructure of Gum Metal, which has many anomalous mechanical properties, was investigated using transmission electron microscopy with energy filtering. A precise analysis of the weak diffuse electron scattering that was observed in the electron diffraction patterns of the Gum Metal specimen revealed that Gum Metal contains a substantial amount of the nanometer-sized ω phase. The morphology of the ω phase appeared to have a correlation with the faulting in the {2 1 1} planes, which are one of the characteristic lattice imperfections of the Gum Metal specimen. It is likely that the nanometer-sized ω phase may be a type of obstacle related to the restriction of the dislocation movement, which has been a significant problem in research on Gum Metal.

Original languageEnglish
Pages (from-to)628-633
Number of pages6
JournalActa Materialia
Volume57
Issue number2
DOIs
Publication statusPublished - 2009 Jan 1

Keywords

  • Energy filtering transmission electron microscopy
  • Lattice defects
  • Nanostructures
  • Omega phase
  • Titanium alloys

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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