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Alloying design of titanium aluminum intermetallics and research progress

  • Bao Hui Li*
  • , Fan Tao Kong
  • , Yu Yong Chen
  • , Zi Yong Chen
  • , Jun Wei Zhang
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalReview articlepeer-review

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 languageEnglish
Pages (from-to)72-78
Number of pages7
JournalJournal of Aeronautical Materials
Volume26
Issue number2
StatePublished - Apr 2006
Externally publishedYes

Keywords

  • Alloying design
  • Forming technology
  • Microstructure and property
  • TiAl alloy

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