Abstract
Mechanical properties of L12-Co3(Al,W) polycrystalline sample are investigated by compression testing at various temperature ranging from room temperature to 1193 K. It was found that at room temperature the 0.2% flow stress is 410MPa and the compressive ductility is higher than 10%, whereas at 1193 K the 0.2% flow stress is 382 MPa and the compressive ductility is about 10%. Two candidates for the reaction scheme of the Co-rich region of the Co-Al-W ternary phase diagram are proposed by combining the results of microstructure observation, X-ray diffractometry and the previous report.
Original language | English |
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Pages (from-to) | 2403-2408 |
Number of pages | 6 |
Journal | Materials Transactions |
Volume | 48 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2007 Sep |
Keywords
- Cobalt alloys
- High temperature deformation
- Intermetallic compounds
- Phase diagram
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering