Oxidation resistance of Fe-25Al-2Ta (at.%) in air

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F10%3A%230001613" target="_blank" >RIV/46747885:24210/10:#0001613 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Oxidation resistance of Fe-25Al-2Ta (at.%) in air

Popis výsledku v původním jazyce

The high-temperature oxidation behaviour of Fe?25Al?2Ta (in at.%) has been investigated between 600 and 1000 °C using thermogravimetric analysis (TGA) in synthetic air. After oxidation for 1000 h the scales were analysed by light optical microscopy (LOM), grazing incidents X-ray diffraction (GI-XRD), scanning electron microscopy (SEM), and electron probe microanalysis (EPMA). Between 600 and 800 °C thin adherent oxide scales grew according to a parabolic rate law. At 900 °C parabolic growth was observedfor several hundred hours, interrupted by sudden mass gains which are probably caused by cracking of the scales, while at 1000 °C no protective scales formed. The scales are predominantly formed by Al2O3 and minor amounts of Fe2O3. While scales formed between 600 and 800 °C are still adherent after cooling to room temperature, scales formed at higher temperatures spalled during/after cooling, possibly because the Laves phase Fe2Ta formed on the sample surfaces underneath the oxide scale

Název v anglickém jazyce

Oxidation resistance of Fe-25Al-2Ta (at.%) in air

Popis výsledku anglicky

The high-temperature oxidation behaviour of Fe?25Al?2Ta (in at.%) has been investigated between 600 and 1000 °C using thermogravimetric analysis (TGA) in synthetic air. After oxidation for 1000 h the scales were analysed by light optical microscopy (LOM), grazing incidents X-ray diffraction (GI-XRD), scanning electron microscopy (SEM), and electron probe microanalysis (EPMA). Between 600 and 800 °C thin adherent oxide scales grew according to a parabolic rate law. At 900 °C parabolic growth was observedfor several hundred hours, interrupted by sudden mass gains which are probably caused by cracking of the scales, while at 1000 °C no protective scales formed. The scales are predominantly formed by Al2O3 and minor amounts of Fe2O3. While scales formed between 600 and 800 °C are still adherent after cooling to room temperature, scales formed at higher temperatures spalled during/after cooling, possibly because the Laves phase Fe2Ta formed on the sample surfaces underneath the oxide scale

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Intermetallics

ISSN

0966-9795

e-ISSN

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Svazek periodika

18

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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