Platinum group metals base refractory superalloys

Y. Yamabe-Mitarai*, Y. Koizumi, H. Murakami, Y. Ro, T. Maruko, H. Harada

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

18 Citations (Scopus)


Ir- and Rh-base refractory superalloys with an fcc and Ll2 two phase structure similar to Ni-base superalloys, yet with considerably higher melting temperatures have been proposed. Fcc and Ll2 two phases were observed in these alloys by transmission electron microscopy and X-ray powder diffractometry. The compression tests of these alloys showed that the strengths of several alloys were about 200 MPa at 1800°C and these alloys have potential to become ultra-high temperature materials for use in power engineering field.

Original languageEnglish
Pages (from-to)701-706
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1996 MRS Fall Meeting - Boston, MA, USA
Duration: 1996 Dec 21996 Dec 5

ASJC Scopus subject areas

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


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