http://dspace.bsuedu.ru/handle/123456789/20439
Название: | Ab initio-based prediction and TEM study of silicide precipitation in titanium |
Авторы: | Poletaev, D. O. Lipnitskii, A. G. Kartamyshev, A. I. Aksyonov, D. A. Tkachev, E. S. |
Ключевые слова: | technique metal science titanium silicides alloys titanium alloys precipitation density functional theory transmission electron microscopy |
Дата публикации: | 2014 |
Библиографическое описание: | Ab initio-based prediction and TEM study of silicide precipitation in titanium / D. O. Poletaev [et al.] // Computational Materials Science. - 2014. - №95.-P. 456-463. - Doi:10.1016/j.commatsci.2014.08.010. - Refer.: p. 462-463. |
Краткий осмотр (реферат): | In this work we applied our recently developed thermodynamic model to predict the structure of Ti-Si precipitates in α-Ti matrix of the Ti-Si alloy with total Si concentration of 0.7 wt.%. We considered all prominent Ti-Si phases such as Ti₃Si; Ti₅Si₃; Ti₅Si₄; TiSi and two TiSi₂ phases and discovered that formation of the Ti₅Si₃ phase is more favorable than that of the Ti₃Si in contradiction with the known phase diagrams. Theoretical result was confirmed by experimental investigation of microstructure and phase composition of the model Ti-0.7Si alloy annealed at 873 K for 10 h. Indeed, the only observed phase has hexagonal Ti₅Si₃ structure. To ensure the completeness of the results we calculated ab initio elastic constants for all considered Ti-Si phases |
URI (Унифицированный идентификатор ресурса): | http://dspace.bsu.edu.ru/handle/123456789/20439 |
Располагается в коллекциях: | Статьи из периодических изданий и сборников (на иностранных языках) = Articles from periodicals and collections (in foreign languages) |
Файл | Описание | Размер | Формат | |
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Poletaev_Ab_initio_14.pdf | 1.44 MB | Adobe PDF | Просмотреть/Открыть |
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