Beta Phase Decomposition in a TiAl Alloy during Continuous Cooling

Abstract:

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Beta phase decomposition in Ti-44Al-4Nb-4Hf-0.1Si during continuous cooling from β phase field has been investigated. A wide cooling rate range (0.3-1000°Cs-1) was provided by mainly using Jominy end quenching, which has been introduced into TiAl research recently, together with iced brine quench (IBQ) and furnace cooling (FC). At different cooling rates beta phase decomposes via different paths through diffusion or diffusionless mechanisms and lamellar transformation may occur after β decomposition at certain cooling rates.

Info:

Periodical:

Materials Science Forum (Volumes 539-543)

Main Theme:

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran

Pages:

3625-3630

DOI:

10.4028/www.scientific.net/MSF.539-543.3625

Citation:

D. Hu et al., "Beta Phase Decomposition in a TiAl Alloy during Continuous Cooling", Materials Science Forum, Vols. 539-543, pp. 3625-3630, 2007

Online since:

March 2007

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Price:

$35.00

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