High-temperature corrosion behavior of selected thermally sprayed coatings in corrosive aggressive environment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00511598" target="_blank" >RIV/61389021:_____/19:00511598 - isvavai.cz</a>
Alternative codes found
RIV/49777513:23640/19:43953246
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/2053-1591/aae956" target="_blank" >https://iopscience.iop.org/article/10.1088/2053-1591/aae956</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2053-1591/aae956" target="_blank" >10.1088/2053-1591/aae956</a>
Alternative languages
Result language
angličtina
Original language name
High-temperature corrosion behavior of selected thermally sprayed coatings in corrosive aggressive environment
Original language description
The aim of this paper is to evaluate and compare the corrosion resistance of Hastelloy C-276 coating with Stellite 6 and Cr3C2%25% NiCr coatings. The coatings were deposited using HP/HVOF (High Pressure/High Velocity Oxygen Fuel) thermal spraying technology. The corrosion test was conducted in the corrosive-aggressive environment of molten salts mixture in the composition of 40% Na2SO4-60% V2O5, simulating the corrosion environment of boilers for residual fuel oils. The corrosion test under cyclic conditions included 50 cycles at the temperature of 750 degrees C and subsequent cooling at the room temperature for 20 min. The corroded specimens were analyzed using scanning electron microscope (SEM) and elemental analysis (EDS). In comparison with Cr3C225% NiCr coating, both Stellite 6 and Hastelloy C-276 coatings provided the substrate material with sufficient protection against high-temperature corrosion. The corrosion mechanism of Hastelloy C-276 coating was based on the formation of protective oxide layer which prevented further penetration of corrosive media. Stellite 6 coating exhibited the corrosion attack along splat boundaries resulting in spat delaminating into the build-up. The corrosion mechanism of Cr3C2-25% NiCr coating included the attack on NiCr matrix resulting in gradual separation of carbide phases into the corrosive environment.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/LO1402" target="_blank" >LO1402: CENTEM+</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Research Express
ISSN
2053-1591
e-ISSN
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Volume of the periodical
6
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
016426
UT code for WoS article
000448882200003
EID of the result in the Scopus database
2-s2.0-85056095632