Abstract
The effects of alloying elements on crystal structure, microstructure and properties of TiAl alloys were analyzed. β phase was introduced at elevated temperature to improve the hot-workability by adding high alloying element (like high Nb, V, Cr, Mn). A small amount of additions (like C, B, rare earth) improved the properties of TiAl alloys through the effects of refinement and precipitations. Favorite microstructures could be obtained by various new approaches of heat treatment and thermo-mechanical treatment. Forming technologies and applications of TiAl alloys in recent years were summed up. And the development tendency was prospected.
| Original language | English |
|---|---|
| Pages (from-to) | 72-78 |
| Number of pages | 7 |
| Journal | Journal of Aeronautical Materials |
| Volume | 26 |
| Issue number | 2 |
| State | Published - Apr 2006 |
| Externally published | Yes |
Keywords
- Alloying design
- Forming technology
- Microstructure and property
- TiAl alloy
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