Sökning: id:"swepub:oai:research.chalmers.se:1d400901-4889-4349-8e1d-a8a3564ad676" >
High-Temperature Co...
High-Temperature Corrosion of HVAF-Sprayed Ni-Based Coatings for Boiler Applications
-
- Eklund, Johan, 1991 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Energy and Materials, Department of Chemistry and Chemical Engineering, Göteborg, 412 96, Sweden
-
- Phother Simon, Julien, 1991 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Energy and Materials, Department of Chemistry and Chemical Engineering, Göteborg, 412 96, Sweden
-
- Sadeghi, Esmaeil, 1985- (författare)
- Högskolan Väst,Avdelningen för avverkande och additativa tillverkningsprocesser (AAT)
-
visa fler...
-
- Joshi, Shrikant V., 1960- (författare)
- Högskolan Väst,Forskningsmiljön produktionsteknik(PTW),PTW
-
- Liske, Jesper, 1978 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Energy and Materials, Department of Chemistry and Chemical Engineering, Göteborg, 412 96, Sweden
-
visa färre...
-
(creator_code:org_t)
- 2019-03-14
- 2019
- Engelska.
-
Ingår i: Oxidation of Metals. - : Springer Science and Business Media LLC. - 1573-4889 .- 0030-770X. ; 91:5-6, s. 729-747
- Relaterad länk:
-
https://research.cha... (primary) (free)
-
visa fler...
-
https://link.springe...
-
https://doi.org/10.1...
-
https://hv.diva-port... (primary) (Raw object)
-
https://doi.org/10.1...
-
https://research.cha...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- The present study investigates the initial corrosion behaviour of HVAF-sprayed NiCr, NiAl and NiCrAlY coatings in two different environments, O 2 + H 2 O and O 2 + H 2 O + KCl at 600 °C for up to 168 h in order to evaluate the possibility of utilizing such coatings in biomass- and waste-fired boilers. SEM/EDX analysis showed that all coatings displayed a protective behaviour in O 2 + H 2 O. Upon addition of KCl (O 2 + H 2 O + KCl), the corrosion behaviour of the NiCr coating drastically changed as it formed a thick oxide layer and displayed major chlorine diffusion down to the substrate. The NiCrAlY coating displayed a significantly better corrosion resistance with only minor oxide formation. The NiAl coating exhibited a protective behaviour similar to when exposed in the absence of KCl indicating that a thin protective oxide has formed on the coating surface. The performance of the NiAl and NiCrAlY coatings is promising for future studies with long-term exposures in more corrosive environments such as in a biomass- and waste-fired boiler.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk material- och protesteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Materials (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Korrosionsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Corrosion Engineering (hsv//eng)
Nyckelord
- HVAF
- KCl-induced corrosion
- Ni-based coatings
- Waste
- Biomass
- Manufacturing and materials engineering
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas