Comparison of descaling methods to study the corrosion kinetics of ferritic steels after dynamic exposure to molten carbonates
Source abstract
Abstract
T91 ferritic-martensitic steel was exposed to Li, Na and K molten carbonates at 650ºC under dynamic conditions up to 1000 h. After testing, three descaling methods, two from the ISO8407 and one from the ISO17245 standards were applied to remove the corrosion products and determine the corrosion rates. The two ISO8407 methods were more appropriate although the procedure required several steps to fully remove the corrosion products. The ISO17245 method led to a higher mass loss affecting probably the base material. Oxides identification was performed by XRD following step by step layers removal. Li-, Na-, K-containing oxides and chromates/chromites were detected.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Non-Destructive Testing Techniques · Metallurgical Processes and Thermodynamics · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
Show source-provided references
1. Corrosion testing device for in-situ corrosion characterization in operational molten salts storage tanks: A516 Gr70 carbon steel performance under molten salts exposure10.1016/j.solmat.2016.06.005 ↗
2. Materials selection of steam-phase change material (PCM) heat exchanger for thermal energy storage systems in direct steam generation facilities10.1016/j.solmat.2016.10.010 ↗
3. Failure analysis of AISI 321 stainless steel welded pipes in solar thermal power plants10.1016/j.engfailanal.2017.12.020 ↗
4. High temperature corrosion beneath carbonate melts of aluminide coatings for CSP application10.1016/j.solmat.2020.110514 ↗
5. Corrosion resistance of stainless steels during thermal cycling in alkali nitrate molten salts
6. Corrosion of stainless steels and carbon steel by molten mixtures of commercial nitrate salts10.1361/10599490417542 ↗
7. Materials corrosion of high temperature alloys immersed in 600°C binary nitrate salt
8. High-temperature corrosion behaviour of metal alloys in commercial molten salts10.1016/j.solener.2020.03.010 ↗
9. Estudio de la resistencia frente a la corrosión por nitratos fundidos de recubrimientos basados en aluminuros en condiciónes dinamicas
10. Oxidation-lithiation of nickel, iron and cobalt in contact with molten carbonate10.1016/S0167-2738(99)00130-7 ↗
11. Perspectives on selected alloys in contact with eutectic melts for thermal storage: nitrates, carbonates and chlorides10.1016/j.solener.2021.06.069 ↗
12. International Organization for Standardization. (2021). Corrosion of metals and alloys — Removal of corrosion products from corrosion test specimens (ISO/DIS Standard No. 8407). Retrieved from 〈https://www.iso.org/standard/71866.html〉.
13. International Organization for Standardization. (2015). Corrosion of metals and alloys — Test method for high temperature corrosion testing of metallic materials by immersing in molten salt or other liquids under static conditions (ISO/DIS Standard No. 17245). Retrieved from 〈https://www.iso.org/standard/59473.html〉.
14. Cation distribution in lithium ferrite (LiFe5O8) prepared via aerosol route
15. The corrosion behaviour of iron and chromium in molten (Li0.62K0.38)2CO310.1016/S0013-4686(97)10191-8 ↗
16. Corrosion of iron base alloys and high alloy steels in the Li2CO3-K2CO3 eutectic mixture10.1016/S0010-938X(97)00020-6 ↗
17. Corrosion resistance of Cr/Ni alloy to a molten carbonate salt at various temperatures for the next generation high-temperature CSP plants10.1016/j.solener.2018.06.091 ↗
18. Solubilities of LiFeO2 and (Li, K)2CrO4 in molten alkali carbonates at 650°C10.1149/1.2100840 ↗
19. High temperature corrosion of low and high alloy steels under molten carbonate fuel cell conditions10.1002/maco.19970480803 ↗
20. Corrosion resistance of HR3C to a carbonate molten salt for energy storage applications in CSP plants10.1016/j.solmat.2016.08.014 ↗