Protection of Nichrome-Alloy Articles from High-Temperature Corrosion (Review)

Min'ko, N. I.; Lazareva, E. A.

doi:10.1007/s10717-018-0060-3

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…The glass-forming composition (STK) was chosen on the basis of a modified MgO -Al2O3 -SiO2 -TiO2 -RxOy system with a SiO2 content not exceeding 50 wt. % (by weight), to prevent unwanted structural changes in the main crystalline phases of the stack of lomatic and coatings [1][2][3]. Chemical compositions of stalowych stillmatic with the use of technogenic raw materials: slag Novocherkasskaya GRES and a secondary product of aluminum production(ITAP) are presented in table.1.…”

Section: Develop Heat-resistant Stalowych In Indoormentioning

confidence: 99%

“…It is known that many alloys, including nichrome alloys, undergo surface oxidation at high temperatures [1][2]. In this regard, the problem of protection of nichrome alloys from hightemperature gas corrosion is extremely important.…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, the problem of protection of nichrome alloys from hightemperature gas corrosion is extremely important. One of the effective ways to protect nichrome alloys from high-temperature corrosion is heat-resistant glass-and-steel coatings with a Sitall structure [1][2][3][4][5]. The creation of such coatings is a problem of great practical importance, the solution of which is necessary, along with establishing optimal composition, structure and technological properties of MS-rostosky stalowych coatings to study the phase composition and to investigate the mechanism of formation of a contact layer in the "nichrome-sitelove coverage".…”

Section: Introductionmentioning

confidence: 99%

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Heat-Resistant Sitall Coatings for High-Temperature Corrosion Protection of Nichrome Alloys

Lazareva¹

2020

MSF

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The bases of physical and chemical processes of technology of heat-resistant Sitall coatings are considered. Presents the results of investigations of phase composition and nanostructure of the contact layer system "nichrome - sitelove coverage" depending on the chemical composition of stellamaris coatings and their mode of microcrystallization. Identified and established the theoretical and technological special-news stalowych formation of coatings on the surface Narumov.

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Section: Develop Heat-resistant Stalowych In Indoormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Heat-Resistant Sitall Coatings for High-Temperature Corrosion Protection of Nichrome Alloys

Lazareva¹

2020

MSF

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“…Many domestic [1][2][3][4] and foreign [5][6][7][8][9][10][11] authors considered the problems of corrosion protection. Corrosion processes can occur during storage and transportation of water with different applications [12,13], oil transportation processes [14], technological processes in hightemperature conditions (heat exchangers, boilers etc.)…”

Section: Introductionmentioning

confidence: 99%

“…There are many researches [1][2][3][4][5][6][7][8][9][10][11] devoted to corrosion protection, but essentially less attention was paid to the problems of minimization of corrosion activity during material manufacture or studying corrosion safety aspects of chemical and physical properties of materials.…”

Section: Introductionmentioning

confidence: 99%

Study of electrochemical properties of austenitic chromium-nickel steel 12Kh18N10T in concentrated sulfuric acid

Zolotukhin,

Kurbatov,

Grunskiy

et al. 2023

cisisr

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Considerable attention has always been paid to the issues of protection against chemical corrosion of technological equipment operating in aggressive environments, and even now this issue does not lose its relevance. Recovery of absorption heat is an integral part of the process of minimizing energy costs, and that is why special requirements are imposed on the quality and service life of heat exchange units. Within the framework of the work done, the electrochemical behavior of austenitic nickel-containing steel grade 12Kh18N10T (equivalent of AISI 304), used for the manufacture of process equipment for sulfuric acid production processes by the double contact -double absorption method, was studied. For the studied sample of austenitic nickel-containing steel, anodic potentiodynamic polarization curves were obtained, on which two weakly manifested passivation regions were noted. It has been established that the predominant contribution to metal losses is made by chemical corrosion, while during the operation of steel structures, iron is leached from the surface layer with formation of a protective nanofilm. Thickness of the resulting protective film is 35 nm or more, with the exposure time of steel in hot sulfuric acid for 200 hours. Increasing of the exposure time does not significantly affect the thickness or composition of the protective coating. Using X-ray phase analysis, it was established that the protective film is based on nickel and chromium compounds. The corrosion rate of equipment in the presence of a protective film does not exceed 0.1 mm/year, there are no pitting and intergranular corrosion. The data obtained will allow not only predicting and planning repair and maintenance work, but also organizing a corrosion prevention system without introducing additional reagents into the system.

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Micro Heat Exchanger: Design, Operation and Economics

Sohrabi,

Hajshahvaladi,

Ahmadzadeh

et al. 2024

Chem Eng & Technol

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Where precision is paramount in managing temperature and fluid dynamics, micro heat exchangers (MHXs) emerge as indispensable tools. This review investigates the significance of MHX technology, offering readers a comprehensive roapmap from conceptualization to market application. We dissect the nuances of material selection, shedding light on cutting‐edge advancements poised to revolutionize MHX efficiency. Furthermore, we explore how the geometry of MHX influences heat transfer dynamics and pressure drop, providing insights into enhancing the overall effectiveness. We delve into the various types of control instrumentation, offering a detailed analysis of their applicability. Beyond the technical prowess, the economic landscape plays a pivotal role in the adoption of MHX technology.

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Protection of Nichrome-Alloy Articles from High-Temperature Corrosion (Review)

Cited by 6 publications

References 6 publications

Heat-Resistant Sitall Coatings for High-Temperature Corrosion Protection of Nichrome Alloys

Heat-Resistant Sitall Coatings for High-Temperature Corrosion Protection of Nichrome Alloys

Study of electrochemical properties of austenitic chromium-nickel steel 12Kh18N10T in concentrated sulfuric acid

Micro Heat Exchanger: Design, Operation and Economics

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