Aging of alpha '(a) martensite in U-0.77Ti

Citation
Jg. Speer et Dv. Edmonds, Aging of alpha '(a) martensite in U-0.77Ti, ACT MATER, 47(7), 1999, pp. 2197-2205
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science",Metallurgy
Journal title
ACTA MATERIALIA
ISSN journal
13596454 → ACNP
Volume
47
Issue
7
Year of publication
1999
Pages
2197 - 2205
Database
ISI
SICI code
1359-6454(19990528)47:7<2197:AOA'MI>2.0.ZU;2-9
Abstract
A detailed examination of the aging response in a quenched U-0.77 wt% Ti al loy using transmission electron microscopy is presented. The acicular marte nsite in this alloy is supersaturated with Ti after quenching, and decompos es via coherent precipitation of U2Ti which grows as rods parallel to [100] (alpha), followed by coarsening via a cellular discontinuous mechanism. The alpha/U2Ti orientation relationship for both the continuous and discontinu ous precipitates may be described as: (001)(U2Ti)\\(100)(alpha) (01 (1) over bar 0)(U2Ti)\\(010)(alpha) (2<(11)over bar>0)(U2Ti)\\(001)(alpha) (C) 1999 Acta Metallugica Inc. Publi shed by Elsevier Science Ltd. All rights reserved.