| DOI | Trouver le DOI : https://doi.org/10.1016/j.intermet.2014.02.005 |
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| Auteur | Rechercher : Zhu, H.; Rechercher : Wei, T.; Rechercher : Blackford, M.; Rechercher : Short, K.; Rechercher : Carr, D.; Rechercher : Harrison, R.; Rechercher : Edwards, L.; Rechercher : Seo, D.1; Rechercher : Maruyama, K. |
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| Affiliation | - Conseil national de recherches du Canada. Aérospatiale
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| Format | Texte, Article |
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| Sujet | Defects: constitutional vacancies; F. Electron microscopy , transmission; Hexagonal close packed; Interstitial migration; Irradiation effect; Microstructural examination; Titanium aluminide alloy; Titanium aluminides , based on TiAl; Helium; Ions; Irradiation; Niobium; Radiation damage; Titanium; Titanium alloys |
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| Résumé | A Ti-45Al-2Nb-2Mn + 0.8 vol.% TiB2 (at.%) alloy with fully lamellar microstructure consisting of hexagonal-close-packed (hcp) α2 and face-centred-tetragonal (fct) γ phases was irradiated by implanting helium ions to different fluences. Microstructural examination showed that helium cavities are formed in both the α2 and γ phases after He-ion irradiation. However, the helium cavities and their size change with fluence are much larger in the α2 phase than those in the γ phase, indicating that the γ phase exhibits better tolerance to the He-ion irradiation than the α2 phase. Since α2 and γ phases have different crystal structures, they possess differences in helium solubility and interstitial migration. These differences are responsible for the variation in radiation damage behaviour between the two phases. © 2014 Elsevier Ltd. All rights reserved. |
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| Date de publication | 2014 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21272145 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | f379eba5-70f7-429b-becc-21372b1bc43b |
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| Enregistrement créé | 2014-07-23 |
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| Enregistrement modifié | 2020-04-22 |
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