Concentration dependence of FCC to FCT martensitic transformation in Fe-Pd alloys

F. Xiao, T. Fukuda, T. Kakeshita, K. Takahashi

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14 Citations (Scopus)

Abstract

An Fe-Pd alloy exhibits a weakly first order FCC-FCT martensitic transformation. In the present study, we have examined the composition dependence of its transformation temperature by magnetic susceptibility, DSC and X-ray measurements. The susceptibility measured in the cooling process exhibits a sudden decrease in alloys with Pd content of 33.0 at.% and less, which is attributed to the FCC-FCT martensitic transformation. However, the transformation is suppressed in alloys with Pd content of 33.1 at.% and more. The latent heat of the FCC-FCT transformation is about 70 J mol-1 for an Fe-30.0 at.%Pd alloy, and it decreases with increasing Pd content.

Original languageEnglish
Pages (from-to)S323-S326
JournalJournal of Alloys and Compounds
Volume577
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2013 Nov 15

Keywords

  • DSC
  • Fe-Pd alloys
  • Magnetic susceptibility
  • Martensitic transformation
  • X-ray diffraction

ASJC Scopus subject areas

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

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