Investigation of Nano-Scale Segregation in Nanostructured Ferritic Alloy 14YWT after Heavy Ion Irradiation
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Characterization of the Grain Boundary in the ODS Steels Using APT
Chemical Composition (at%) | |||||||
---|---|---|---|---|---|---|---|
Fe | Cr | W | O | Ti | Y | C | |
Unirradiated | |||||||
Bulk | 83.93 ± 1.35 | 14.71 ± 0.20 | 0.58 | 0.37 | 0.19 | 0.09 | 0.06 |
GB (Δ) | 72.35 ± 2.93 (−11.58) | 22.80 ± 1.45 (8.09) | 1.02 ± 0.45 (0.44) | 1.99 ± 1.12 (1.62) | 1.23 ± 0.83 (1.04) | 0.46 ± 0.33 (0.37) | 0.14 ± 0.11 (0.08) |
P1 (Δ) | 75.40 ± 5.99 (−8.53) | 17.56 ± 1.23 (2.85) | 0.95 ± 0.01 (0.37) | 2.40 ± 0.07 (2.03) | 1.81 ± 0.04 (1.62) | 0.82 ± 0.0 (0.73) | 0.10 (0.04) |
P2 (Δ) | 69.21 ± 5.44 (−14.72) | 23.53 ± 1.70 (8.82) | 1.13 ± 0.02 (0.55) | 2.56 ± 0.07 (2.19) | 1.83 ± 0.04 (1.64) | 0.70 ± 0.01 (0.61) | 0.13 (0.07) |
P3 (Δ) | 77.41 ± 6.76 (−6.52) | 19.89 ± 1.66 (5.18) | 1.22 ± 0.03 (0.64) | 0.42 ± 0.01 (0.05) | 0.14 (-0.05) | 0.16 (0.07) | 0.22 (0.16) |
After irradiation | |||||||
Bulk | 83.36 ± 1.35 | 15.1 ± 0.23 | 0.58 | 0.39 | 0.13 | 0.07 | 0.06 |
GB (Δ) | 76.13 ± 1.76 (−7.23) | 20.01 ± 1.03 (4.91) | 1.42 ± 0.54 (0.84) | 0.58 ± 0.22 (0.19) | 0.47 ± 0.15 (0.34) | 0.13 ± 0.11 (0.06) | 1.22 ± 0.39 (1.16) |
P1 (Δ) | 74.90 ± 5.80 (−8.46) | 19.27 ± 1.36 (4.17) | 0.64 ± 0.01 (0.06) | 2.66 ± 0.08 (2.27) | 1.74 ± 0.04 (1.61) | 0.69 ± 0.01 (0.62) | 0.09 (0.03) |
P2 (Δ) | 69.50 ± 5.02 (−13.86) | 21.96 ± 1.42 (6.86) | 0.67 ± 0.01 (0.09) | 3.63 ± 0.10 (3.24) | 2.73 ± 0.07 (2.6) | 1.07 ± 0.02 (1.00) | 0.43 (0.37) |
P3 (Δ) | 79.13 ± 6.78 (−4.23) | 17.86 ± 1.44 (2.76) | 1.63 ± 0.04 (1.05) | 0.16 (-0.23) | 0.19 (0.06) | 0.16 (0.09) | 0.86 (0.8) |
3.2. The Relationship of Nano Oxide Particles and Cr Segregation in the ODS Steel
3.3. Irradiation Induced Segregation in the 14YWT
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Cai, J.; Han, W.; Wan, F.; He, J. Investigation of Nano-Scale Segregation in Nanostructured Ferritic Alloy 14YWT after Heavy Ion Irradiation. Materials 2022, 15, 7257. https://doi.org/10.3390/ma15207257
Cai J, Han W, Wan F, He J. Investigation of Nano-Scale Segregation in Nanostructured Ferritic Alloy 14YWT after Heavy Ion Irradiation. Materials. 2022; 15(20):7257. https://doi.org/10.3390/ma15207257
Chicago/Turabian StyleCai, Junfeng, Wentuo Han, Farong Wan, and Jianchao He. 2022. "Investigation of Nano-Scale Segregation in Nanostructured Ferritic Alloy 14YWT after Heavy Ion Irradiation" Materials 15, no. 20: 7257. https://doi.org/10.3390/ma15207257