THE STRUCTURE OF THE ALLOY TI-50AL-15MO BETWEEN 800-DEGREES-C AND 1400-DEGREES-C

Authors
CHEN Z JONES IP SMALL CJ
Citation
Z. Chen et al., THE STRUCTURE OF THE ALLOY TI-50AL-15MO BETWEEN 800-DEGREES-C AND 1400-DEGREES-C, Acta materialia, 45(9), 1997, pp. 3801-3815
Citations number
19
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Acta materialia → ACNP
ISSN journal
13596454
Volume
45
Issue
9
Year of publication
1997
Pages
3801 - 3815
Database
ISI
SICI code
1359-6454(1997)45:9<3801:TSOTAT>2.0.ZU;2-B
Abstract
The alloy Ti-50Al-15Mo (at.%) has been annealed at 1400 degrees C, 135 0 degrees C, 1200 degrees C, 1000 degrees C and 800 degrees C and subs equently quenched. The resulting phases have been identified and their compositions measured. The structures of the equilibrium phases al th e various temperatures have thus been inferred, along with their compo sitions. Of particular interest are a diffusionless transformation of gamma-TiAl to a D0(22) structure similar to that of TiAl3 and a furthe r ordering of the D0(22) compound to a new phase which we have termed gamma ''. (C) 1997 Acta Metallurgica Inc.