On the orientation relationship between alpha(2) precipitates and the B2 phase in a Ti-47 at. % Al-2 at. % W-0.5 at.% Si alloy

Authors
Yu, R He, LL Ye, HQ Guo, JT
Citation
R. Yu et al., On the orientation relationship between alpha(2) precipitates and the B2 phase in a Ti-47 at. % Al-2 at. % W-0.5 at.% Si alloy, PHIL MAG L, 81(2), 2001, pp. 71-76
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHILOSOPHICAL MAGAZINE LETTERS
ISSN journal
09500839 → ACNP
Volume
81
Issue
2
Year of publication
2001
Pages
71 - 76
Database
ISI
SICI code
0950-0839(200102)81:2<71:OTORBA>2.0.ZU;2-D
Abstract
The orientation relationship (OR) between alpha (2)-Ti3Al precipitates in t he B2 phase in a Ti-47 at.% Al-2 at.% W-0.5 at.% Si alloy was determined by transmission electron microscopy. The OR is [2(11) over bar0](alpha2)//[(1 ) over bar 11](B2) and (0(2) over bar 21)(alpha2)//(110)(B2), in which the close-packed planes of the alpha (2) and B-2 phases are not exactly paralle l to each other. This OR is precisely predicted from the invariant line the ory and the reciprocal lattice overlap theory.