Platinum group metals base refractory superalloys

Conference · Tue Dec 30 23:00:00 EST 1997

OSTI ID:571908

Yamabe-Mitarai, Y; Koizumi, Y; Murakami, H; Harada, H ^[1]; Maruko, T ^[2]

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1. National Research Inst. for Metals, Tsukuba, Ibaraki (Japan)
2. Furuya Metals Co. Ltd., Simodate, Ibaraki (Japan)

Ir- and Rh-base refractory superalloys wit h an fcc and L1{sub 2} two phase structure similar to Ni-base superalloys, yet with considerably higher melting temperatures have been proposed. Fcc and L1{sub 2} 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 1,800 C and these alloys have potential to become ultra-high temperature materials for use in power engineering field.

• OSTI ID: 571908
• Report Number(s): CONF-961202--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HAFNIUM ALLOYS
HEAT RESISTING ALLOYS
IRIDIUM BASE ALLOYS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NIOBIUM ALLOYS
RHODIUM BASE ALLOYS
TANTALUM ALLOYS
ZIRCONIUM ALLOYS