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Formation and Stability of Near Convoluted Structure Obtained in the Ti–46Al–8Ta Alloy Via Air Quenching and Ageing
Author(s) -
Imayev Valery,
Gaisin Ramil,
Wunderlich Rainer,
Valiev Ruslan,
Fecht HansJörg
Publication year - 2010
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200900220
Subject(s) - quenching (fluorescence) , alloy , ingot , microstructure , ageing , materials science , metallurgy , homogeneous , air cooling , thermodynamics , physics , biology , fluorescence , genetics , quantum mechanics
Microstructure evolution after air quenching and variable ageing treatment has been investigated in small‐sized ingot bars of the Ti–46Al–8Ta alloy. It was found that air quenching and subsequent ageing at 1200–1260 °C led to the formation of a homogeneous refined near convoluted microstructure. To increase the stability of the near convoluted structure, very slow cooling after high‐temperature ageing and final long‐term ageing at around 900 °C can be recommended.