High Temperature Corrosion On Inconel and Carbon Steel Filler of Weldment in Liquid Pb at 800 ̊C
DOI:
https://doi.org/10.55981/jsmi.2026.11718Keywords:
Lead-cooled Fast Reactor (LFR), Welded SS316, Inconel and 70S filler, High-temperature corrosion, Oxide scaleAbstract
This study evaluates the corrosion behavior of SS316 material welded using Inconel and 70S fillers in a static liquid lead (Pb) environment saturated with oxygen at 800 °C for 36 hours, simulating accident conditions in a lead-cooled fast reactor (LFR). Welding was carried out using laser welding (Inconel filler) and metal inert gas (MIG) (70S filler) methods, representing structural joints in the reactor. The results of scanning electron microscope (SEM) and energy dispersive X-ray (EDX) analysis showed the formation of a spinel-type oxide layer (Fe-Cr-O) in both weld areas, with the laser welding sample showing deeper Pb penetration due to the porosity of the oxide layer. In contrast, in MIG welding, the oxide layer was denser with limited Pb penetration at the spinel-matrix interface. The base metal (BM) only formed a thin layer without significant oxide, but showed lower Pb penetration. These results provide critical insights into filler metal performance under extreme conditions, supporting material selection and weld design strategies for enhanced safety and longevity in next-generation lead-cooled fast reactors.
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[1] L. Cinotti, C. F. Smith, H. Sekimoto, L. Mansani, M. Reale, and J. J. Sienicki, “Lead-cooled system design and challenges in the frame of Generation IV International Forum,” J. Nucl. Mater., vol. 415, no. 3, pp. 245–253, 2011, doi: 10.1016/j.jnucmat.2011.04.042.
[2] C. Zhang, L. Chen, Y. Zhang, and S. Li, “Advancements and Development Trends in Lead-Cooled Fast Reactor Core Design,” 2025.
[3] MIT open course, “Under, Over and Critical Damping 1. Response to Damping,” pp. 2–7, 2011, [Online]. Available: https://ocw.mit.edu/courses/mathematics/18-03sc-differential-equations-fall-2011/unit-ii-second-order-constant-coefficient-linear-equations/damped-harmonic-oscillators/MIT18_03SCF11_s13_2text.pdf.
[4] L. Martinelli, T. Dufrenoy, K. Jaakou, A. Rusanov, and F. Balbaud-Célérier, “High temperature oxidation of Fe-9Cr-1Mo steel in stagnant liquid lead-bismuth at several temperatures and for different lead contents in the liquid alloy,” J. Nucl. Mater., vol. 376, no. 3, pp. 282–288, 2008, doi: 10.1016/j.jnucmat.2008.02.006.
[5] A. P. A. Mustari and M. Takahashi, “Study on corrosion of welded steel for LBE-cooled fast reactors,” in Progress in Nuclear Energy, 2011, vol. 53, no. 7, pp. 1073–1077.
[6] Q. Peng et al., “Role of water chemistry and microstructure in stress corrosion cracking in the fusion boundary region of an Alloy 182-A533B low alloy steel dissimilar weld joint in high temperature water,” Corros. Sci., vol. 53, no. 12, pp. 4309–4317, 2011, doi: 10.1016/j.corsci.2011.08.046.
[7] P. B. Srinivasan, S. Riekehr, C. Blawert, W. Dietzel, and M. Koçak, “Slow strain rate stress corrosion cracking behaviour of as-welded and plasma electrolytic oxidation treated AZ31HP magnesium alloy autogenous laser beam weldment,” Mater. Sci. Eng. A, vol. 517, no. 1–2, pp. 197–203, 2009, doi: 10.1016/j.msea.2009.03.069.
[8] Z. Lu, T. Shoji, Y. Takeda, Y. Ito, A. Kai, and N. Tsuchiya, “Effects of loading mode and water chemistry on stress corrosion crack growth behavior of 316L HAZ and weld metal materials in high temperature pure water,” Corros. Sci., vol. 50, no. 3, pp. 625–638, 2008, doi: 10.1016/j.corsci.2007.08.021.
[9] S. Edition, Metallurgy Second Edition Welding Metallurgy, vol. 822, no. 1–3. 2003.
[10] X. Yang, Q. Guo, S. Tang, L. Zhang, X. Chen, and X. Shi, “Welding Numerical Simulation Analysis of AP 1000 Insert Plate and Penetration Sleeves Based on ABAQUS,” J. Phys. Conf. Ser., vol. 2383, no. 1, 2022, doi: 10.1088/1742-6596/2383/1/012100.
[11] B. Bezensek and J. W. Hancock, “The toughness of laser welded joints in the ductile-brittle transition,” Eng. Fract. Mech., vol. 74, no. 15, pp. 2395–2419, 2007, doi: 10.1016/j.engfracmech.2006.11.011.
[12] E. Charalampopoulou et al., “Early stages of dissolution corrosion in 316L and DIN 1.4970 austenitic stainless steels with and without anticorrosion coatings in static liquid lead-bismuth eutectic (LBE) at 500 C,” Mater. Charact., vol. 178, p. 111234, 2021.
[13] J. Kalivodová, D. Baxter, M. Schütze, and V. Rohr, “Corrosion behaviour of boiler steels, coatings and welds in flue gas environments,” Mater. Corros., vol. 59, no. 5, pp. 367–373, 2008, doi: 10.1002/maco.200804117.
[14] S. H. Cho, J. S. Cha, S. H. Kim, E. Y. Choi, J. H. Lee, and J. M. Hur, “Hot corrosion behaviour of Inconel 625 weldments in molten lithium salt,” Corros. Eng. Sci. Technol., vol. 50, no. 8, pp. 606–617, 2015, doi: 10.1179/1743278215Y.0000000015.
[15] L. C. Olson, J. W. Ambrosek, K. Sridharan, M. H. Anderson, and T. R. Allen, “Materials corrosion in molten LiF–NaF–KF salt,” J. Fluor. Chem., vol. 130, no. 1, pp. 67–73, Jan. 2009, doi: 10.1016/j.jfluchem.2008.05.008.
[16] G. Le Petit et al., “Analysis of Radionuclide Releases from the Fukushima Dai-Ichi Nuclear Power Plant Accident Part I,” Pure Appl. Geophys., vol. 171, no. 3–5, pp. 629–644, Mar. 2014, doi: 10.1007/s00024-012-0581-6.
[17] S. Lee and Y. Son, “A Study on Weld Residual Stress Relaxation by Local Post Weld Heat Treatment for Circumferential Weld,” in Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Plant Systems, Structures and Components; Codes, Standards, Licensing and Regulatory Issues, Jul. 2014, pp. 1–7, doi: 10.1115/ICONE22-31083.
[18] G. A. S. Metal, A. R. C. Welding, and H. T. Steel, “SM-70 GAS METAL ARC WELDING CONSUMABLES FOR WELDING OF Mild & 490Mpa CLASS HIGH TENSILE STEEL,” 2021. [Online]. Available: https://www.hyundaiwelding.com/data/file/consumables/ttr/SM-70.pdf?utm_source=chatgpt.com.
[19] J. Schroer, C.;Konys, FZKA 7364, Physical Chemistry of Corrosion and Oxygen Control in Liquid Lead and Lead-Bismuth Eutectic. 2007.
[20] C. Fazio, G. Benamati, C. Martini, and G. Palombarini, “Compatibility tests on steels in molten lead and lead-bismuth,” J. Nucl. Mater., vol. 296, no. 1–3, pp. 243–248, 2001, doi: 10.1016/S0022-3115(01)00538-4.
[21] K. Lambrinou, E. Charalampopoulou, T. Van der Donck, R. Delville, and D. Schryvers, “Dissolution corrosion of 316L austenitic stainless steels in contact with static liquid lead-bismuth eutectic (LBE) at 500 °C,” J. Nucl. Mater., vol. 490, no. 2017, pp. 9–27, 2017, doi: 10.1016/j.jnucmat.2017.04.004.
[22] J. Jiang, Y. Wang, and H. V. Atkinson, “Microstructural coarsening of 7005 aluminum alloy semisolid billets with high solid fraction,” Mater. Charact., vol. 90, pp. 52–61, Apr. 2014, doi: 10.1016/j.matchar.2014.01.017.
[23] R. S. Coelho, A. Kostka, H. Pinto, S. Riekehr, M. Koçak, and A. R. Pyzalla, “Microstructure and mechanical properties of magnesium alloy AZ31B laser beam welds,” Mater. Sci. Eng. A, vol. 485, no. 1–2, pp. 20–30, 2008, doi: 10.1016/j.msea.2007.07.073.
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