Influences of impurity chloride ion on corrosion of new quaternary nitrate

被引：0
作者：
Gao Q. [1 ]
Lu Y. [1 ]
Yu Q. [1 ]
Song W. [1 ]
Wu Y. [1 ]
机构：
[1] Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education and Key Laboratory of Heat Transfer and Energy Conversion of Beijing, Beijing University of Technology, Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2022年 / 43卷 / 12期
关键词：
Chloride ion; Corrosion; Nitrates; Solar thermal power generation; Stainless steel; X ray diffraction spectrum;
D O I：
10.19912/j.0254-0096.tynxb.2021-0754
中图分类号：
学科分类号：
摘要：
In order to explore the influence of molten salt with low chloride ion content (0.01%-0.05%,mass fraction) on the corrosion process of metal materials. By means of weight loss method, the corrosion behavior of 316L stainless steel in mixed molten salts with chloride ion mass fraction of 0.01%, 0.03% and 0.05% was studied. The results show that the minimum weight loss of 316L stainless steel in molten salt with chloride ion mass fraction of 0.03% is 0.4381 mg/cm2 after 360 h of corrosion test. The surface morphology analysis by SEM, EDS and XRD test showed that Ca(OH)2 appears in the corrosion products of stainless steel after adding chloride ions.During the formation of Ca(OH)2 mayhydroxyl ion are consumed, thus reducing the weight loss of stainless steel. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：119 / 123
页数：4
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  • [1] GROSU Y, BONDARCHUK O, FAIK A., The effect of humidity, impurities and initial state on the corrosion of carbon and stainless steels in molten HitecXL salt for CSP application, Solar energy materials and solar cells, 174, pp. 34-41, (2018)
  • [2] WU Y T, REN N, MA C F., Research and application of molten salts for sensible heat storage, Energy storage science and technology, 2, 6, pp. 589-591, (2013)
  • [3] NISSEN D A, MEEKER D E., Nitrate/nitrite chemistry in NaNO<sub>3</sub>-KNO<sub>3</sub> melts, Inorganic chemistry, 22, 5, pp. 716-721, (1983)
  • [4] XIAO Y, DING L L, LIAO W J, Et al., Corrosion resistances of 304, 316L and 321 Austenite stainless steel in nitrate molten salt, Materials review, 1, pp. 217-219, (2016)
  • [5] GOMESA A, NAVAS M, URANGA N, Et al., High-temperature corrosion performance of austenitic stainless steels type AISI 316L and AISI 321H, in molten Solar Salt, Solar energy, 177, pp. 408-419, (2019)
  • [6] KRUIZENGA A, GILL D., Corrosion of iron stainless steels in molten nitrate salt, Energy procedia, 49, pp. 878-887, (2014)
  • [7] JAVIER F R C, PRIETO C, MADINA V, Et al., Materials selection for thermal energy storage systems in parabolic trough collector solar facilities using high chloride content nitrate salts, Solarenergy materials & solarcells, 163, pp. 134-147, (2017)
  • [8] FEDERSEL K, WORTMANN J, LADENBERGER M., High-temperature and corrosion behavior of nitrate nitrite molten salt mixtures regarding their application inconcentrating solar power plants, Energy procedia, 69, pp. 618-625, (2015)
  • [9] ZOU L L., Formulation optimization of quaternary mixed molten salt and economic analysis of thermal storage system, (2018)
  • [10] SUN Z, SU L, GAO X Y, Et al., Influences of impurity Cl on the thermal performance of solar salt for thermal energy storage, Solar energy, 216, pp. 90-95, (2021)
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