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Author |
Klimenkov, M.; Bonnekoh, C.; Jaentsch, U.; Rieth, M.; Schneider, H.-C.; Terentyev, D.; Iroç, K.; Van Renterghem, W. |
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Title |
Microstructure of CuCrZrV and ODS(Y₂O₃)-Cu alloys after neutron irradiation at 150, 350, and 450 °C to 2.5 dpa |
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A1 Journal article |
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Year  |
2025 |
Publication |
Materials |
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Volume |
18 |
Issue |
7 |
Pages |
1401-1416 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
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Abstract |
In this study, the results of transmission electron microscopy (TEM) examinations of neutron-irradiated (2.5 dpa at 150 degrees C, 350 degrees C, and 450 degrees 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 a0 1/2 < 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. |
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Wos |
WOS:001463958300001 |
Publication Date |
2025-03-21 |
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ISSN |
1996-1944 |
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Additional Links |
UA library record; WoS full record |
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Open Access |
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Call Number |
UA @ admin @ c:irua:213845 |
Serial |
9450 |
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