The origin of a new phase observed during quenching of a TiAl-2Fe alloy

Authors
Tokar, A Berner, A Levin, L
Citation
A. Tokar et al., The origin of a new phase observed during quenching of a TiAl-2Fe alloy, MAT SCI E A, 308(1-2), 2001, pp. 13-18
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
308
Issue
1-2
Year of publication
2001
Pages
13 - 18
Database
ISI
SICI code
0921-5093(20010630)308:1-2<13:TOOANP>2.0.ZU;2-S
Abstract
Microstructure formation in the Ti-49.6at.% Al-1.9at.% Fe alloy after fast and slow cooling from 1200 degreesC was examined and analyzed by X-ray diff raction, scanning and transmission electron microscopy combined with electr on probe microanalysis. Formation of a previously unidentified si phase is reported and discussed. It has a tetragonal lattice with lattice parameters a = 11.5 Angstrom, c = 13.8 Angstrom. Possible orientation relationships b etween the tau ' (2) phase and the parent FeTi(Al) are [010](tau '2) parall el to [001](FeTi(Al)) [100](tau '2) parallel to [110](FeTi(Al)) and [001](t au '2) parallel to [(1) over bar 10](FeTi(Al).) (C) 2001 Elsevier Science B .V. Ah rights reserved.