Abstract
Ir-base quaternary alloy 76.5Ir-13.5Nb-8.1Ni-1.9Al (in atomic percent) with an fcc/L12 two-phase structure showed an excellent balance of high-temperature strength and ductility in the previous study. In the present work, the compressive creep behavior of the alloy was characterized within a temperature range of 1500 to 1800 °C and a stress range of 50 to 200 MPa. The microstructure before and after the creep test was investigated. Depending on the steady-state creep rate, the creep stress exponent was calculated.
Original language | English |
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Pages (from-to) | 3371-3376 |
Number of pages | 6 |
Journal | Materials Letters |
Volume | 57 |
Issue number | 22-23 |
DOIs | |
Publication status | Published - 2003 Jul 1 |
Externally published | Yes |
Keywords
- Compressive creep
- Intermetallic alloys and compounds
- Ir-base quaternary alloy
- Mechanical properties
- Microstructure
- Stress exponent
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering