Crystallography and morphology of antiphase boundary-like structure induced by martensitic transformation in Ti-Pd-Fe alloy

M. Matsuda, S. Nishimura, S. Tsurekawa, K. Takashima, Masatoshi Mitsuhara, Minoru Nishida

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Abstract

The antiphase boundary (APB)-like structure of both 9R and B19 martensites in the Ti-Pd-Fe alloy was investigated by means of transmission electron microscopy. Some APB-like structures with curved and wide contrasts along the (0 0 1)9Rbasal plane are observed in 9R martensitic plates. The atomic displacement on the APB-like structure reflects the atomic movement stemming from the microdomains formed as a pre-martensitic transformation. The displacement vector of the APB-like structure in the B19 martensite can be expressed as R = 〈1/3 0 -1/2〉B19. The density of APB-like contrasts increases by the substitution of Fe for Pd in Ti-Pd-Fe alloy.

Original languageEnglish
Pages (from-to)527-532
Number of pages6
JournalJournal of Alloys and Compounds
Volume618
DOIs
Publication statusPublished - Jan 5 2015

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All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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