The Effect of Niobium and Carbon on the Oxidation Resistance of Alloys Based on Fe3Al at 900°C
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10448373" target="_blank" >RIV/00216208:11320/22:10448373 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vVr5zW-5K6" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vVr5zW-5K6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11085-022-10111-9" target="_blank" >10.1007/s11085-022-10111-9</a>
Alternative languages
Result language
angličtina
Original language name
The Effect of Niobium and Carbon on the Oxidation Resistance of Alloys Based on Fe3Al at 900°C
Original language description
Abstract: The cyclic oxidation behaviour of Fe-26Al-3Nb, Fe-27Al-5Nb and Fe-26Al-5Nb-1.4C (in at%) was investigated at 900°C. Chemical and phase analyses of the scale and oxide protrusions were conducted using light optical microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray diffraction. The oxidation resistance of the tested alloys was determined using fractal dimension, and the results were compared with Fe-26Al-0.3Zr, Fe-26Al-1Zr (at%) and EN X5CrNi18-10 steel. The oxidation kinetics of Fe-26Al-3Nb and Fe-27Al-5Nb follow the parabolic rate law. Oxidation ingress into the alloys was observed due to the preferential oxidation of niobium-rich precipitates. Therefore, the oxidation rate of tested alloys increased with increasing amounts of particles of Laves phase (Fe, Al)2Nb and NbC. The niobium carbides oxidised more readily than the particles of Laves phase (Fe, Al)2Nb. The cyclic oxidation of Fe-Al-Nb and Fe-Al-Nb-C alloys at 900°C led to the formation of oxide scales composed of Al2O3, Fe2O3 and AlNbO4 (or non-stoichiometric AlNbO4). Graphical Abstract: [Figure not available: see fulltext.]
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Oxidation of Metals [online]
ISSN
1573-4889
e-ISSN
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Volume of the periodical
98
Issue of the periodical within the volume
Duben
Country of publishing house
JP - JAPAN
Number of pages
31
Pages from-to
77-107
UT code for WoS article
000782874200001
EID of the result in the Scopus database
2-s2.0-85128202226