Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 22, Issue 11, Pages 2593-2603Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(11)61505-7
Keywords
beta-stabilizing elements; B2 phase; TiAl-based alloys; phase diagram; grain refinement; thermal processing; superplastic deformation
Categories
Funding
- National Basic Research Program of China [2011CB605505]
- Fundamental Research Funds for the Central Universities, China [2011JQ002]
Ask authors/readers for more resources
Based on the analyses of the microstructures and phase diagrams of the TiAl-based alloy, the relationship among the composition, structure and mechanical properties of the B2-containing gamma-TiAl alloys was reviewed. The refinement of microstructures and improvement of mechanical properties of TiAl alloy through stabilization of the beta/B2 phase were reviewed. The mechanism of the superplastic behavior of the B2-containing gamma-TiAl alloys was discussed. With a reasonable addition of beta-stabilizer, metastable B2 phase can be maintained, which is favorable for fine-grained structure and better high-temperature deformation behaviors. The mechanical properties of the B2-containing TiAl alloy, including the deformability and elevated temperature properties, can also be improved with doping elements and subsequent hot-working processes. The above mentioned researches discuss a new way for developing TiAl alloys with comprehensive properties, including good deformability and creep resistance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available