Abstract
The compression creep properties for the nickel (Ni) added iridium-based two-phase refractory superalloys were investigated at 1800°centigrade under 137 MPa. Samples were examined using scanning electron microscope and transmission electron microscope. Creep strain was determined by a CCD camera and by measuring the load-strain displacement. Results indicated that creep resistance improved due to addition of 1 at.% Ni due to lattice misfit decrease and change in crack behavior.
Original language | English |
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Pages (from-to) | 137-142 |
Number of pages | 6 |
Journal | Scripta Materialia |
Volume | 46 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2002 Jan |
Externally published | Yes |
Keywords
- Creep
- IrNb
- Refractory superalloy
- Ultra-high temperature
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys