Comparative characterization of mixed spectra and thermal neutron shielded irradiated tungsten
Source abstract
Abstract
The effect of mixed spectra and thermal neutron shielded irradiation on tungsten was evaluated with plasma exposure in the tritium plasma experiment followed by thermal desorption spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. The two different irradiation campaigns were performed at the High Flux Isotope Reactor to 0.39–0.74 displacement per atom (dpa) in the 894–1379 K temperature range. A neutron spectrum influence on the void size and void number density was not observed. However, a strong correlation was found between void size and void number density with temperature, but not with dpa in the limited dpa range of this study. Thermal neutron shielding significantly reduced the transmutation to Re+Os. Higher irradiation temperature will lead to larger voids with lower number density, which reduces deuterium retention. Grain growth was also observed for high-temperature irradiation of over ∼1300 K within the limited grains visible in the transmission electron microscopy specimens.
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Research context
OpenAlex topics: Nuclear Physics and Applications · Fusion materials and technologies · Nuclear Materials and Properties
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References (47)
Show source-provided references
1. Response of unalloyed tungsten to mixed spectrum neutrons10.1016/j.jnucmat.2019.03.045 ↗
2. Surface chemistry of neutron irradiated tungsten in a high-temperature multi-material environment☆
3. Microstructural analysis of W irradiated at different temperatures10.1016/j.jnucmat.2022.154018 ↗
4. Microstructural evolution of pure tungsten neutron irradiated with a mixed energy spectrum10.1016/j.jnucmat.2017.04.010 ↗
5. Neutron irradiation-enhanced grain growth in tungsten and tungsten alloys10.1016/j.jallcom.2021.163419 ↗
6. Deuterium retention in tungsten irradiated by different ions10.1088/1741-4326/ab9a65 ↗
7. A critical review of experiments on deuterium retention in displacement-damaged tungsten as function of damaging dose10.1088/2053-1591/acfdf8 ↗
8. Deuterium retention in neutron-irradiated single-crystal tungsten10.1016/j.fusengdes.2018.04.094 ↗
9. Deuterium trapping at defects created with neutron and ion irradiations in tungsten10.1088/0029-5515/53/7/073006 ↗
10. Deuterium retention in W and W-Re alloy irradiated with high energy Fe and W ions: effects of irradiation temperature10.1016/j.nme.2016.06.016 ↗
11. Evaluation of irradiation facility options for fusion materials research and development10.1016/j.fusengdes.2013.02.081 ↗
12. Phenix US-Japan collaboration investigation of thermal and mechanical properties of thermal neutron–shielded irradiated tungsten10.1080/15361055.2019.1602390 ↗
13. Irradiation effects in tungsten—From surface effects to bulk mechanical properties10.1016/j.nme.2021.101093 ↗
14. Neutron irradiation hardening across ITER diverter tungsten armor10.1016/j.ijrmhm.2020.105437 ↗
15. Thermal diffusivity of irradiated tungsten and tungsten-rhenium alloys10.1016/j.jnucmat.2020.152594 ↗
16. Tensile properties of powder-metallurgical-processed tungsten alloys after neutron irradiation near recrystallization temperatures10.1016/j.jnucmat.2020.152505 ↗
17. Fracture-mechanical properties of neutron irradiated ITER specification tungsten10.1016/j.jnucmat.2020.152761 ↗
18. Irradiation hardening of pure tungsten exposed to neutron irradiation10.1016/j.jnucmat.2016.08.024 ↗
19. Neutron irradiation effects on the microstructural development of tungsten and tungsten alloys10.1016/j.jnucmat.2015.10.047 ↗
20. Effect of rhenium addition on deuterium retention in neutron-irradiated tungsten10.1016/j.jnucmat.2022.153774 ↗
21. First result of deuterium retention in neutron-irradiated tungsten exposed to high flux plasma in TPE10.1016/j.jnucmat.2010.11.050 ↗
22. Influence of dynamic annealing of irradiation defects on the deuterium retention behaviors in tungsten irradiated with neutron10.1016/j.fusengdes.2019.03.003 ↗
23. Effects of helium seeding on deuterium retention in neutron-irradiated tungsten10.1080/15361055.2020.1843314 ↗
24. Effect of neutron energy and fluence on deuterium retention behaviour in neutron irradiated tungsten
25. Deuterium retention in tungsten irradiated by high-dose neutrons at high temperature
26. D retention and depth profile behavior for single crystal tungsten with high temperature neutron irradiation10.1016/j.jnucmat.2020.152323 ↗
27. Comparison of deuterium retention for ion-irradiated and neutron-irradiated tungsten
28. Thermal desorption behavior of deuterium for 6 MeV Fe ion irradiated W with various damage concentrations10.1016/j.jnucmat.2015.03.032 ↗
29. Thermal properties of pure tungsten and its alloys for fusion applications10.1016/j.fusengdes.2018.04.117 ↗
30. Microstructure development of dispersion-strengthened tungsten due to neutron irradiation10.1016/j.jnucmat.2013.10.012 ↗
31. Strain rate dependence of tensile properties of tungsten alloys for plasma-facing components in fusion reactors10.1016/j.fusengdes.2015.10.032 ↗
32. Damage parameters of structural materials in fusion environment compared to fission reactor irradiation10.1016/j.fusengdes.2012.01.022 ↗
33. Determination of neutron irradiation temperatures of SiC using electrical resistivity method10.1016/j.jnucmat.2020.152370 ↗
34. [Accessed online September 28. 2024]; Available from: https://www.ornl.gov/division/rnsd/projects/hfir-mfe-rb-19j-materials-irradiation-experiment.
35. Greenwood, L.R., B.D. Pierson, and T. Trang-Le, HFIR-MFE-RB-19J NEUTRON FLUENCE MEASUREMENTS AND RADIATION DAMAGE CALCULATIONS (REVISED). DOE/ER-0313/67, 2020: p. 160–167.
36. Practical guide for curve fitting in x-ray photoelectron spectroscopy
37. Behaviors of deuterium retention and microstructure change of tungsten simultaneously implanted with carbon and/or helium ions10.2320/matertrans.MG201205 ↗
38. Fiji: an open-source platform for biological-image analysis10.1038/nmeth.2019 ↗
39. Moulder, J., et al., Handbook of X-ray Photoelectron Spectroscopy; Perkin-Elmer Corporation: Eden Prairie, MN, 1992. Google Scholar There is No Corresponding Record For This Reference, 1992: p. 52–53.
40. Modelling recrystallization and grain growth of tungsten induced by neutron displacement defects10.1016/j.mechmat.2018.04.008 ↗
41. Neutron irradiated tungsten bulk defect characterization by positron annihilation spectroscopy
42. Positron lifetime calculation for the elements of the periodic table
43. Positron simulations of defects in tungsten containing hydrogen and helium10.1016/j.nimb.2008.11.045 ↗
44. Accumulation of point defects and their complexes in irradiated metals as studied by the use of positron annihilation spectroscopy–a brief review10.1016/j.jnucmat.2003.08.011 ↗
45. Defect evolution in single crystalline tungsten following low temperature and low dose neutron irradiation10.1016/j.jnucmat.2015.12.040 ↗
46. Positron lifetime study of ion-irradiated tungsten: ion type and dose effects10.1016/j.nme.2024.101610 ↗
47. Deuterium retention in rhenium-doped tungsten10.1016/j.jnucmat.2007.01.110 ↗