PHASE-TRANSFORMATIONS IN HIPPED TI-48AL-2MN-2NB POWDER DURING HEAT-TREATMENTS

Authors
ZHANG G BLENKINSOP PA WISE MLH
Citation
G. Zhang et al., PHASE-TRANSFORMATIONS IN HIPPED TI-48AL-2MN-2NB POWDER DURING HEAT-TREATMENTS, Intermetallics, 4(6), 1996, pp. 447-455
Citations number
23
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Chemistry Physical","Material Science
Journal title
Intermetallics → ACNP
ISSN journal
09669795
Volume
4
Issue
6
Year of publication
1996
Pages
447 - 455
Database
ISI
SICI code
0966-9795(1996)4:6<447:PIHTPD>2.0.ZU;2-P
Abstract
The phase transformations between gamma and alpha(2) in PM Ti-48Al-2Nb -2Mn alloy during heat-treatment, particularly in the alpha + gamma ph ase field, were studied and the microstructural development was assess ed. Carbon and oxygen were found to increase the alpha transus tempera ture and to affect the phase relations. A dual-phase structure and a d uplex structure were formed and their formation mechanisms during heat -treatment are discussed on the basis of the microstructural observati ons. Copyright (C) 1996 Elsevier Science Ltd