New mechanism for the alpha to omega martensitic transformation in pure titanium

We propose a new direct mechanism for the pressure driven alpha-->omega martensitic transformation in pure titanium. A systematic algorithm enumerates all possible pathways whose energy barriers are evaluated. A new, homogeneous pathway emerges with a barrier at least 4 times lower than other pat...

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Bibliographic Details
Published in:Physical review letters 2003-07, Vol.91 (2), p.025701-025701, Article 025701
Main Authors: Trinkle, D R, Hennig, R G, Srinivasan, S G, Hatch, D M, Jones, M D, Stokes, H T, Albers, R C, Wilkins, J W
Format: Article
Language:English
Subjects:
MATERIALS SCIENCE
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Summary:We propose a new direct mechanism for the pressure driven alpha-->omega martensitic transformation in pure titanium. A systematic algorithm enumerates all possible pathways whose energy barriers are evaluated. A new, homogeneous pathway emerges with a barrier at least 4 times lower than other pathways. The pathway is shown to be favorable in any nucleation model.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.91.025701