Orthorhombic martensite formed in L12-type Fe3Pt Invar alloy

Masataka Yamamoto, Takashi Fukuda, Tomoyuki Kakeshita, Kohki Takahashi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The tetragonality c/a of FCT martensite phase in an Fe3Pt depends on the degree of order S of the L12-type parent phase. As the degree of order increases, the tetragonality c/a changes from being less than 1 (S = 0.75) to being larger than 1 (S = 0.88). In this study, we have investigated a martensitic transformation behavior in a single-crystalline Fe3Pt with a degree of order which is in between 0.75 and 0.88, and have found the existence of orthorohombic martensite phase in the Fe 3Pt.

Original languageEnglish
Pages (from-to)S503-S506
JournalJournal of Alloys and Compounds
Issue numberSUPPL. 1
Publication statusPublished - 2013 Nov 15


  • Invar alloys
  • Magnetic susceptibility
  • Phase transitions
  • Tetragonality
  • X-ray diffraction

ASJC Scopus subject areas

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


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