Features of a eutectoid reaction in a Ti-40 at.% Al alloy: Evidence for an amorphous-state formation from a crystal

M. Tanimura, Y. Inoue, Y. Koyama

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In an initial stage of a eutectoid reaction of a Ti-40 at.% Al alloy, hcp→D019+L10, an amorphous state was found to form around an intermediate precipitate with the B19 structure, together with a change in crystal structure of the matrix from the hcp structure to the D019 one. Characteristic features of the amorphous state are that the destruction of the crystal lattice mainly takes place in the (001) plane of the D019 structure but is very slightly extended along the [001] direction. The shape of the amorphous region is just like a thin film. On the basis of the present data, the origin of the two-dimensional-like character of the lattice destruction is simply discussed.

Original languageEnglish
Pages (from-to)15239-15243
Number of pages5
JournalPhysical Review B
Issue number21
Publication statusPublished - 1995 Jan 1


ASJC Scopus subject areas

  • Condensed Matter Physics

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