Effect of irradiation damage defects on the impurity containing molten salt corrosion behavior in GH3535 alloy
Source abstract
Abstract
This study explores the corrosion response of irradiated nickel-based GH3535 alloy in impurity-enriched molten FLiNaK salt at 650 °C. Displacement damage resulting from Au ion irradiation formats dislocation loops, whose distribution is influenced by subsequent He ion irradiation and He bubble formation. Samples irradiated with Au ions exhibit a shallow corrosion layer with big-size and dense distributed Cr 2O 3 particles, while a contrasting trend is observed in samples irradiated with He ions. Displacement damage decelerates Cr outward diffusion by promoting protective Cr 2O 3 formation with SO 4 2- impurities, thereby inhibiting impurity-accelerated corrosion. However, the accelerating effect of He bubbles subsequently counteracts this inhibitory impact on corrosion.
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Research context
OpenAlex topics: Fusion materials and technologies · Nuclear Materials and Properties · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. The molten salt reactor (MSR) in generation IV: Overview and perspectives10.1016/j.pnucene.2014.02.014 ↗
2. Molten salt reactors: A new beginning for an old idea10.1016/j.nucengdes.2009.12.033 ↗
3. Characterization of molten 2LiF–BeF2 salt impregnated into graphite matrix of fuel elements for thorium molten salt reactor10.1007/s41365-019-0600-8 ↗
4. Structural materials challenges for advanced reactor systems10.1016/j.jnucmat.2008.11.026 ↗
5. The thorium molten salt reactor: Moving on from the MSBR10.1016/j.pnucene.2006.07.005 ↗
6. Materials corrosion in molten LiF–NaF–KF salt10.1016/j.jfluchem.2008.05.008 ↗
7. Ion irradiation-induced swelling and hardening effect of Hastelloy10.1016/j.jnucmat.2017.03.036 ↗
8. Structural materials for Gen-IV nuclear reactors: Challenges and opportunities10.1016/j.jnucmat.2008.08.044 ↗
9. Microstructural evolution and hardening of GH3535 alloy under energetic Xe ion irradiation at room temperature and 650 °C10.1016/j.jnucmat.2017.12.006 ↗
10. Mitigation of He embrittlement and swelling in nickel by dispersed SiC nanoparticles10.1016/j.matdes.2015.10.147 ↗
11. Xenon ion irradiation induced hardening in inconel 617 containing experiment and numerical calculation10.1016/j.jnucmat.2019.07.032 ↗
12. Evolution of microstructure and microchemistry in cold-worked 316 stainless steels under PWR irradiation10.1080/18811248.2006.9711078 ↗
13. Neutron irradiation induced defects and clustering in NF616 and T9110.1016/j.jnucmat.2021.153001 ↗
14. Synergistic effect of irradiation and molten salt corrosion: Acceleration or deceleration?10.1016/j.corsci.2021.109434 ↗
15. Proton irradiation-decelerated intergranular corrosion of Ni-Cr alloys in molten salt10.1038/s41467-020-17244-y ↗
16. Corrosion behavior of ion-irradiated SiC in FLiNaK molten salt10.1016/j.corsci.2019.108229 ↗
17. Corrosion-driven outward migration and growth of helium bubbles in a nickel-based alloy in high-temperature molten salt environment10.1016/j.corsci.2019.03.026 ↗
18. Effects of He ion irradiation on the corrosion performance of alloy GH3535 welded joint in molten FLiNaK10.1016/j.corsci.2018.10.038 ↗
19. Irradiation accelerated fluoride molten salt corrosion of nickel-based UNS N10003 alloy revealed by X-ray absorption fine structure10.1016/j.corsci.2019.108408 ↗
20. Effects of bubbles on high-temperature corrosion of helium ion-irradiated Ni-based alloy in fluoride molten salt10.1016/j.corsci.2017.06.027 ↗
21. In-situ TEM investigation on the evolution of He bubbles and dislocation loops in Ni-based alloy irradiated by H2+ & He+ dual-beam ions10.1016/j.jmst.2022.07.054 ↗
22. Defects evolution and hardening in the Hastelloy N alloy by subsequent Xe and He ions irradiation10.1016/j.jnucmat.2019.02.022 ↗
23. Effect of SO42- on the corrosion of 316L stainless steel in molten FLiNaK salt10.1016/j.corsci.2018.08.057 ↗
24. On the use of SRIM for computing radiation damage exposure10.1016/j.nimb.2013.05.008 ↗
25. Characterisation of microstructure and creep properties of alloy 617 for high-temperature applications10.1016/j.msea.2014.09.046 ↗
26. E.P.J. Web of ConferencesMolten salt corrosion (FLiNaK) of a Ni–Mo–Cr alloy and its welds for application in energy-generation and energy-storage systems10.1016/j.corsci.2019.108306 ↗
27. The irradiation hardening of Ni-Mo-Cr and Ni-W-Cr alloy under Xe26+ ion irradiation10.1016/j.nimb.2018.02.018 ↗
28. Corrosion behavior of GH3535 alloy in molten LiF–BeF2 salt10.1016/j.corsci.2022.110168 ↗
29. Temperature dependent surface modification of T91 steel under 3.25MeV Fe-ion implantation10.1016/j.apsusc.2014.11.029 ↗
30. Quantitative characterization of frank loops and their effects on the plastic degradation in heavy ion irradiated alloy 800H10.1016/j.msea.2021.142501 ↗
31. The evolution of dislocation loop and its interaction with pre-existing dislocation in He+-irradiated molybdenum: in-situ TEM observation and molecular dynamics simulation10.1016/j.actamat.2020.10.022 ↗
32. In-situ TEM observation of the evolution of helium bubbles & dislocation loops and their interaction in Pd during He+ irradiation10.1016/j.jmst.2021.01.069 ↗
33. Influence of dislocation and dislocation loop biases on microstructures simulated by rate equation cluster dynamics10.1016/j.jnucmat.2015.09.046 ↗
34. Effect of post-irradiation annealing on microstructure evolution and hardening in GH3535 alloy irradiated by Au ions10.1007/s40195-022-01415-5 ↗
35. Effect of SO ion impurity on stress corrosion behavior of Ni-16Mo-7Cr alloy in FLiNaK salt10.1016/j.jnucmat.2021.152809 ↗
36. ChemicaL-reactions involved in the initiation of hot corrosion10.1149/1.2115455 ↗
37. Solubility of Cr2O3 in molten fluorides with different ZrF4 contents and fluoroacidities10.1149/1945-7111/ab6984 ↗
38. Synergistic effect of multiple molten salts on hot corrosion behaviour of Ni-based single crystal superalloy10.1016/j.corsci.2022.110381 ↗
39. Diffusion of sulfur into thoriated nickel10.1007/BF02644229 ↗
40. High-temperature corrosion behavior of superalloys in molten salts – a review10.1080/10408436.2016.1243090 ↗