Phase equilibria in the Ni-Mn-Sb alloy system

T. Miyamoto, M. Nagasako, R. Kainuma

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5 Citations (Scopus)


Phase equilibria and ordered phase regions in the Ni-Mn-Sb system at 700 and 900 °C and the martensite phase region at room temperature were determined mainly by the diffusion triple method. It was confirmed that single-phase region of the ordered bcc phases exists in a wide composition range of a central part at both 700 and 900 °C and that the region is divided into two regions of half-Heusler C1b and full-Heusler L21 at 700 °C, while the C1b phase is missing at 900 °C. The B2 + L21 phase separation was also confirmed in a certain composition range near Ni-50%Mn, and the iso-Ms (= RT) line in the L21 phase region was also estimated to be located from 12 to 16 at.% Sb.

Original languageEnglish
Pages (from-to)64-71
Number of pages8
JournalJournal of Alloys and Compounds
Publication statusPublished - 2019 Jan 25


  • Heusler alloy
  • Magnetic shape memory
  • Martensitic transformation
  • Ni–Mn–Sb
  • Order–disorder transition
  • Phase diagram


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