Site preference in NiAl-determination by thermal conductivity measurement

Yoshihiro Terada, Kenji Ohkubo, Tetsuo Mohri, Tomoo Suzuki

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

A contour map of thermal conductivity in a ternary intermetallic phase characterizes the direction of the contour ridge, and the ridge direction has been demonstrated to be a reliable indication of site preference of ternary elements in an intermetallic compound. Site preferences of fifteen kinds of ternary elements in NiAl are determined from the ridge direction of thermal conductivity contours in ternary β phase. It is found that V, Nb, Ta, Mo, Fe, Ru, Co and Pt substitute preferentially for nickel, while Ti, Mn, Ga, Si and Ge for aluminum, and Cr and Cu occupy both nickel and aluminum sites.

Original languageEnglish
Pages (from-to)468-473
Number of pages6
JournalMaterials Science and Engineering A
Volume329-331
DOIs
Publication statusPublished - 2002 Jun

Keywords

  • Based on NiAl
  • Microalloying
  • Nickel aluminides
  • Site occupancy
  • Thermal properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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