In‐situ transmission electron microscopy of the α ⟷ γ allotropic transformation in thin foil of iron

Akito Takasaki, Kozo Ojima, Youji Taneda

Research output: Contribution to journalArticle

1 Citation (Scopus)


The α ⟷ γ allotropic transformation in vapor deposited thin foil of pure iron is investigated by in‐situ transmission electron microscopy. The α ⟷ γ transformation proceeds by following Bain's orientation relationship, which is {001} γ ∥ {001} α and 〈001〉 γ ∥ 〈011〉 α, indicating that the α ⟷ γ transformation is martensitic in nature. No eminent dislocation is introduced within the newly transformed α‐ or γ‐iron grains. The grain size of the re‐transformed α‐iron from the γ‐iron becomes extremely larger than that before α ⟷ γ transformation.

Original languageEnglish
Pages (from-to)159-165
Number of pages7
Journalphysica status solidi (a)
Issue number1
Publication statusPublished - 1995 Mar 16


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this