Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-465 - C7-468
DOI http://dx.doi.org/10.1051/jp4:1993774
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-465-C7-468

DOI: 10.1051/jp4:1993774

TEM investigation of rapidly quenched metastable γ TiAl phases

G. SHAO, T. GROSDIDIER and P. TSAKIROPOULOS

Department of Materials Science and Engineering, University of Surrey, Guildford Surrey GU2 5XH, U.K.


Abstract
The microstructural characteristics of rapidly solidified Ti-48.8at%Al-2.2at%V thin ribbons have been studied. Different forms of the γ phase were observed and disordered γ is reported for the first time. Thermal APBs associated with the ordering process were observed. α2-free domains consisting of Ll0 γ laths were also investigated. Within the domains, the parallel γ laths are at 90° to one another around <1 0 0>.



© EDP Sciences 1993