| DOI | Resolve DOI: https://doi.org/10.1016/j.intermet.2014.02.005 |
|---|
| Author | Search for: Zhu, H.; Search for: Wei, T.; Search for: Blackford, M.; Search for: Short, K.; Search for: Carr, D.; Search for: Harrison, R.; Search for: Edwards, L.; Search for: Seo, D.1; Search for: Maruyama, K. |
|---|
| Affiliation | - National Research Council of Canada. Aerospace
|
|---|
| Format | Text, Article |
|---|
| Subject | 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 |
|---|
| Abstract | 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. |
|---|
| Publication date | 2014 |
|---|
| In | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| NPARC number | 21272145 |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | f379eba5-70f7-429b-becc-21372b1bc43b |
|---|
| Record created | 2014-07-23 |
|---|
| Record modified | 2020-04-22 |
|---|
