Abstract
To design high-temperature materials with suitable ductility and high strength at high temperatures, Ir-Pt-Al alloys were investigated. It is expected that precipitation hardening by the B2 phase and solid-solution hardening of Ir by Pt and Al occur in the Ir-Pt-Al alloys. The phase constitution and microstructure were investigated by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) and electron probe microscopy analysis (EPMA). Compression creep tests were then carried out with some of these alloys at 1773 K under 30 MPa. The creep mechanism is discussed in terms of the microstructure and phase constituents. Finally, the potential of Ir-Pt-Al alloys as high-temperature materials is discussed.
Original language | English |
---|---|
Pages (from-to) | 143-152 |
Number of pages | 10 |
Journal | Journal of Alloys and Compounds |
Volume | 359 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2003 Sep 22 |
Externally published | Yes |
Keywords
- High temperature alloys
- Metals
- SEM
- TEM
- X-ray diffraction
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry