Corrosion performance of slurry aluminide coatings in molten NaCl–KCl

Grégoire, Benjamin; Oskay, Ceyhun; Meißner, T.M.; Galetz, Mathias C.

doi:10.1016/j.solmat.2021.110974

Cited by 20 publications

(5 citation statements)

References 60 publications

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“…A similar tendency was found for the slurry-aluminizing [25,26,[29][30][31][32] and CVD technologies [1][2][3]5,[37][38][39][40][41][42][43]47,51,55], for which the deposition of NiAl coatings is still the main area of interest. Interestingly, the most frequently modified nickel-based alloys are those with the highest oxidation resistance, possessing high mechanical strength.…”

Section: Summary and Future Perspectivessupporting

confidence: 69%

“…Li et al [25] confirmed that smooth coating with a surface roughness Ra < 4.5 µm could be obtained on a nickel-based substrate by using slurry aluminizing. Besides the precise and uniform nature of these coatings, they are characterized by excellent high-temperature corrosion resistance either in molten NaCl-KCl at 700 • C [26], air [27,28] and in the absence of salt [29]. Slurry-aluminized coatings are also effective under extreme service conditions.…”

Section: Slurry Aluminizingmentioning

confidence: 99%

“…A summary of the slurry-aluminizing research concerning the coating, deposition method and main advantages is presented in Table 2. It could be observed that most studies aimed to increase the operating temperature [28,[30][31][32][33] and improve the high-temperature corrosion resistance in either air [28,30], molten salts [26,29] or water vapor [33].…”

Section: Slurry Aluminizingmentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in the Deposition of Aluminide Coatings on Nickel-Based Superalloys: A Synthetic Review (2019–2023)

Kopec

2024

Coatings

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Thermal barrier coatings (TBCs) are widely used to improve the oxidation resistance and high-temperature performance of nickel-based superalloys operating in aggressive environments. Among the TBCs, aluminide coatings (ACs) are commonly utilized to protect the structural parts of jet engines against high-temperature oxidation and corrosion. They can be deposited by different techniques, including pack cementation (PC), slurry aluminizing or chemical vapor deposition (CVD). Although the mentioned deposition techniques have been known for years, the constant developments in materials sciences and processing stimulates progress in terms of ACs. Therefore, this review paper aims to summarize recent advances in the AC field that have been reported between 2019 and 2023. The review focuses on recent advances involving improved corrosion resistance in salty environments as well as against high temperatures ranging between 1000 °C and 1200 °C under both continuous isothermal high-temperature exposure for up to 1000 h and cyclic oxidation resulting from AC application. Additionally, the beneficial effects of enhanced mechanical properties, including hardness, fatigue performance and wear, are discussed.

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Section: Summary and Future Perspectivessupporting

confidence: 69%

Section: Slurry Aluminizingmentioning

confidence: 99%

Section: Slurry Aluminizingmentioning

confidence: 99%

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Recent Advances in the Deposition of Aluminide Coatings on Nickel-Based Superalloys: A Synthetic Review (2019–2023)

Kopec

2024

Coatings

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“…This allows to obtain coatings of the lowest cost and slurry method is one of the cheapest available methods of manufacture of aluminide coatings. Because of the environmental constraints of pack cementation and of out-of-pack processes related to the use of halides and other hazardous chemicals, significant efforts led to the use of water-based technologies [50,51]. The suspension designed for deposition process can be easily modified and may be stored for a long time.…”

Section: Slurry Processmentioning

confidence: 99%

Cyclic Oxidation of Diffusion Aluminide Coatings

Kianicová¹

2023

Hypersonic and Supersonic Flight - Advances in Aerodynamics, Materials, and Vehicle Design

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The diffusion aluminide coatings are used for high-temperature applications. Structural materials of particular components degrade during service due to fatigue, creep, oxidation, corrosion and erosion. The requirements of higher efficiency of modern industrial applications increase the development of new structural materials, technologies and protective coatings. Properties of many structural materials such ultimate tensile strength, creep strength and fatigue are generally optimized for maximum high-carrying loading with less emphasis on environmental resistance. For these applications, the performance characteristics are limited by the operating conditions, which can be tolerated by the used materials. The main structural materials for high mechanical and thermal loading are superalloys protected against aggressive environment by coatings. Cyclic oxidation is the superposition of thermal cycles in an oxidation environment. The main goal of the experimental work was to compare the cyclic oxidation of protective Al and AlSi coatings deposited on both Inconel 713 LC and MAR-M247 superalloys. The resulting graph revealed that samples from IN 713 LC without coating show good resistance and their mass change is maintained above zero limit. Samples from MAR 247 LC with both Al and AlSi coatings appear to be the most acceptable selection of combination relating to superalloys/coating.

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“…Aluminide-based coatings have also been investigated [98][99][100]. In these works, the authors deposited the aluminides by slurry spray process.…”

Section: Corrosion Resistant Coatings In Tes Systemmentioning

confidence: 99%

Thermal Spray Processes in Concentrating Solar Power Technology

Rubino

Poza

Pasquino

et al. 2021

Metals

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Solar power is a sustainable and affordable source of energy, and has gained interest from academies, companies, and government institutions as a potential and efficient alternative for next-generation energy production. To promote the penetration of solar power in the energy market, solar-generated electricity needs to be cost-competitive with fossil fuels and other renewables. Development of new materials for solar absorbers able to collect a higher fraction of solar radiation and work at higher temperatures, together with improved design of thermal energy storage systems and components, have been addressed as strategies for increasing the efficiency of solar power plants, offering dispatchable energy and adapting the electricity production to the curve demand. Manufacturing of concentrating solar power components greatly affects their performance and durability and, thus, the global efficiency of solar power plants. The development of viable, sustainable, and efficient manufacturing procedures and processes became key aspects within the breakthrough strategies of solar power technologies. This paper provides an outlook on the application of thermal spray processes to produce selective solar absorbing coatings in solar tower receivers and high-temperature protective barriers as strategies to mitigate the corrosion of concentrating solar power and thermal energy storage components when exposed to aggressive media during service life.

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Corrosion performance of slurry aluminide coatings in molten NaCl–KCl

Cited by 20 publications

References 60 publications

Recent Advances in the Deposition of Aluminide Coatings on Nickel-Based Superalloys: A Synthetic Review (2019–2023)

Recent Advances in the Deposition of Aluminide Coatings on Nickel-Based Superalloys: A Synthetic Review (2019–2023)

Cyclic Oxidation of Diffusion Aluminide Coatings

Thermal Spray Processes in Concentrating Solar Power Technology

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