The effect of the microstructure on the corrosion behavior of N5 superalloy in a molten (Li,Na,K)F eutectic salt

Wang, Yan Li; Wang, Qian; Liu, Hui Jun; Zeng, Chao

doi:10.1039/c5ra04755b

Cited by 9 publications

(1 citation statement)

References 18 publications

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“…Yttria-stabilized zirconia is one of the kinds of TBC applied in Inconel 625 and Incoloy 800H with the aid of bond coat material of NiCoAlY. All these TBC can be coated with the bond coat with the different substrates using the plasma spray coating process [6][7][8]. The molten salts are available in solid form in general, and their solid form changes to liquid phase when exposed to high temperature.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Hot Corrosion Behaviour of Inconel 625 and Incoloy 800H Superalloys with YSZ‐Thermal Barrier Coating Under High‐Temperature Environment for Bioreactor Applications

Hariharan

Anderson

Praveenkumar

et al. 2022

Journal of Nanomaterials

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Thermal energy storage is one of the promising technologies in the modern era for balancing the peak power demand without emitting much emission. Molten-salt technology plays a dominant role among the varieties of thermal energy storage systems. The difficulty in storing the molten-salt technology requires a storage material with high temperature, corrosion, and oxidation resistance properties. The nickel-based superalloys such as Inconel 625 and Incoloy 800H possess the desired properties to be used as a storage material for the molten salts. In this present work, the Incoloy 800H and Inconel 625 superalloy specimens were taken up for investigation. The specimens were coated with yttria-stabilized zirconia as a thermal barrier coating using a plasma spray process. The sodium chloride and potassium chloride molten salts with a weight fraction of 7 : 3 have been taken with both uncoated and YSZ-coated specimens, and specimens were heated up to 1000°C approximately. The specimens were heated for different hours such as 8, 12, and 16 hours, respectively. The increase in heating time also results in the increase in the tensile property of the specimens. The mechanical testing, such as tensile test and hardness test, was performed to comprehend the mechanical properties. Scanning electron microscope images and X-ray diffraction analysis were made to study the microstructural properties and the corrosion resistance property. From the test results, YSZ-coated specimens possess high corrosion resistance and high mechanical strength compared to the uncoated specimens.

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Section: Introductionmentioning

confidence: 99%

Investigation on Hot Corrosion Behaviour of Inconel 625 and Incoloy 800H Superalloys with YSZ‐Thermal Barrier Coating Under High‐Temperature Environment for Bioreactor Applications

Hariharan

Anderson

Praveenkumar

et al. 2022

Journal of Nanomaterials

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Hot corrosion behaviour of Hastelloy X and Inconel 625 in an aggressive environment for superalloys for high-temperature energy applications

et al. 2022

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Materials compatibility for the next generation of Concentrated Solar Power plants

Sarvghad

Maher

Collard

et al. 2018

Energy Storage Materials

127

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The effect of the microstructure on the corrosion behavior of N5 superalloy in a molten (Li,Na,K)F eutectic salt

Abstract: The corrosion of structural materials in molten fluorides, influenced by the microstructure of the structural materials, is considered to be a great challenge for the development of molten salt reactors using fluorides as fuel carriers or coolants.

Cited by 9 publications

References 18 publications

Investigation on Hot Corrosion Behaviour of Inconel 625 and Incoloy 800H Superalloys with YSZ‐Thermal Barrier Coating Under High‐Temperature Environment for Bioreactor Applications

Investigation on Hot Corrosion Behaviour of Inconel 625 and Incoloy 800H Superalloys with YSZ‐Thermal Barrier Coating Under High‐Temperature Environment for Bioreactor Applications

Hot corrosion behaviour of Hastelloy X and Inconel 625 in an aggressive environment for superalloys for high-temperature energy applications

Materials compatibility for the next generation of Concentrated Solar Power plants

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