Microstructure of CuCrZrV and ODS(Y 2 O 3)-Cu Alloys After Neutron Irradiation at 150, 350, and 450 °C to 2.5 dpa.
Saved in:
| Title: | Microstructure of CuCrZrV and ODS(Y 2 O 3)-Cu Alloys After Neutron Irradiation at 150, 350, and 450 °C to 2.5 dpa. |
|---|---|
| Authors: | Klimenkov, Michael1 (AUTHOR) michael.klimenkov@kit.edu, Bonnekoh, Carsten1,2 (AUTHOR), Jaentsch, Ute1,3 (AUTHOR), Rieth, Michael1,4 (AUTHOR), Schneider, Hans-Christian1,2 (AUTHOR), Terentyev, Dmitry2,3 (AUTHOR), Iroc, Koray3,4 (AUTHOR), Van Renterghem, Wouter3,4 (AUTHOR) |
| Source: | Materials (1996-1944). Apr2025, Vol. 18 Issue 7, p1401. 16p. |
| Subjects: | Dislocation loops, Transmission electron microscopy, Heat sinks, Image analysis, Alloys, Neutron irradiation |
| Abstract: | In this study, the results of transmission electron microscopy (TEM) examinations of neutron-irradiated (2.5 dpa at 150 °C, 350 °C, and 450 °C) CuCrZrV and ODS(Y2O3)-Cu alloys are presented. These materials were developed for application as heat sink materials in fusion technology. This study includes TEM imaging and quantitative analysis of neutron radiation-induced defects such as dislocation loops and voids as well as the determination of the conditions for their formation. It was found that dislocation loops of a0½⟨110⟩ type form in both alloys at all irradiation temperatures. The formation of voids in CuCrZrV alloy is effectively suppressed. The neutron irradiation causes a redistribution of Cr, Zr, and V in the CuCrZrV alloy. A particular focus was on the investigation of the distribution of the transmutation products Ni and Zn. Ni tends to segregate at the Cr-rich clusters and forms a shell around them, while Zn is evenly distributed. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | In this study, the results of transmission electron microscopy (TEM) examinations of neutron-irradiated (2.5 dpa at 150 °C, 350 °C, and 450 °C) CuCrZrV and ODS(Y2O3)-Cu alloys are presented. These materials were developed for application as heat sink materials in fusion technology. This study includes TEM imaging and quantitative analysis of neutron radiation-induced defects such as dislocation loops and voids as well as the determination of the conditions for their formation. It was found that dislocation loops of a0½⟨110⟩ type form in both alloys at all irradiation temperatures. The formation of voids in CuCrZrV alloy is effectively suppressed. The neutron irradiation causes a redistribution of Cr, Zr, and V in the CuCrZrV alloy. A particular focus was on the investigation of the distribution of the transmutation products Ni and Zn. Ni tends to segregate at the Cr-rich clusters and forms a shell around them, while Zn is evenly distributed. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 19961944 |
| DOI: | 10.3390/ma18071401 |
