Microstructure refinement of cast TiAl alloys by β solidification

Microstructure refinement of TiAl alloys is realized by introducing β solidification in this paper. The obtained fine-grained cast microstructures can be optimized to be fine-grained fully lamellar structures merely by a one-step heat treatment. The present study may provide an alternative and cost-...

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Bibliographic Details
Published in:Scripta materialia 2004-07, Vol.51 (2), p.113-117
Main Authors: Jin, Yonggang, Wang, J.N., Yang, Jie, Wang, Yong
Format: Article
Language:English
Subjects:
Casting
Fine-grained fully lamellar structure
Solidification
Titanium aluminides
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Summary:Microstructure refinement of TiAl alloys is realized by introducing β solidification in this paper. The obtained fine-grained cast microstructures can be optimized to be fine-grained fully lamellar structures merely by a one-step heat treatment. The present study may provide an alternative and cost-effective approach for microstructure refinement of TiAl alloys.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2004.03.044