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Oxidation behaviour...
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Sadeghimeresht, Esmaeil,1985-Högskolan Väst,Avdelningen för avverkande och additativa tillverkningsprocesser (AAT),PTW,University West
(author)
Oxidation behaviour of HVAF-sprayed NiCr coating in moisture-laden environment
- Article/chapterEnglish2017
Publisher, publication year, extent ...
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New York :Curran Associates, Inc.2017
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:hv-13053
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https://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-13053URI
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https://research.chalmers.se/publication/506617URI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:kon swepub-publicationtype
Notes
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Reducing CO2 emissions from power generation plants is intimately related to enhancing their thermal efficiency, which can be achieved by increasing the temperature/pressure of steam. However, any increase in steam temperature is inevitably accompanied by accelerated oxidation of boiler components. The use of renewable fuels such as biomass increases the problem by introducing a number of corrosive compounds into the boiler environment, resulting in more rapid degradation of components. Although thermal sprayed coatings are techno-commercially attractive solutions for augmenting the durability of degradation-prone boiler components and are already used, further improvements in their performance are continuously sought. High-velocity air fuel (HVAF) coatings are promising in this context. In the present work, isothermal oxidation behavior of a candidate HVAF-sprayed Ni21Cr was studied in N2 + 5% O2 + 20% H2O at 600°C for 168h. The oxide scale growth mechanisms were studied by BIB/SEM/EDX to evaluate the effectiveness of the coatings. It was found that the water vapor effect is insignificant due to the Cr reservoir in the Ni21Cr coating, which yielded enhanced oxidation protection by forming nano-scale Cr2O3.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Eklund, Johan,1991Chalmers University of Technology, Department of Environmental Inorganic Chemistry, Gothenburg, 412 96, Sweden,Chalmers tekniska högskola(Swepub:cth)johekl
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Phother Simon, Julien,1991Chalmers University of Technology, Department of Environmental Inorganic Chemistry, Gothenburg, 412 96, Sweden,Chalmers tekniska högskola(Swepub:cth)photer
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Lyske, J.Chalmers University of Technology, Department of Environmental Inorganic Chemistry, Gothenburg, 412 96, Sweden,Chalmers tekniska högskola
(author)
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Markocsan, Nicolaie,1967-Högskolan Väst,Avdelningen för avverkande och additativa tillverkningsprocesser (AAT),PTW,University West(Swepub:hv)tnm
(author)
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Joshi, Shrikant V.,1960-Högskolan Väst,Forskningsmiljön produktionsteknik(PTW),PTW,University West(Swepub:hv)shrjos
(author)
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Högskolan VästAvdelningen för avverkande och additativa tillverkningsprocesser (AAT)
(creator_code:org_t)
Related titles
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In:Proceedings of the International Thermal Spray Conference & Exposition (ITSC 2017)New York : Curran Associates, Inc.2, s. 644-6469781510858220
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In:Proceedings of the International Thermal Spray ConferenceNew York : Curran Associates, Inc.2, s. 644-646
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