Abstract
The principles of multi-component alloying and saturated solid-solution hardening were combined for the design and development of Ir-based alloys for ultra-high temperature applications. It is found that as a solute, the transition metal Hf combined with Nb exerts its full potential for solid-solution hardening on the solvent Ir at room temperature and higher. With a monolithic saturated face-centered cubic structure, the Ir-3Hf-5Nb alloy has a 0.2% yield strength of as high as 140 MPa even at 1950°C.
Original language | English |
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Pages (from-to) | 115-119 |
Number of pages | 5 |
Journal | Scripta Materialia |
Volume | 54 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2006 Jan |
Externally published | Yes |
Keywords
- Compression test
- High-temperature strength
- Iridium alloys
- Solid-solution hardening
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys