High-temperature oxidation behaviour of Zr alloyed Fe3Al-type iron aluminide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10126547" target="_blank" >RIV/00216208:11320/12:10126547 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24210/12:#0002780

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.corsci.2012.05.027" target="_blank" >http://dx.doi.org/10.1016/j.corsci.2012.05.027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.corsci.2012.05.027" target="_blank" >10.1016/j.corsci.2012.05.027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-temperature oxidation behaviour of Zr alloyed Fe3Al-type iron aluminide

Popis výsledku v původním jazyce

The oxidation behaviour of two Fe3Al-based Fe-Al-Cr-Zr-C alloys has been evaluated between 900 and 1200 degrees C. The alloys contained either (Fe,Al)(2)Zr Laves phase or ZrC carbide. The alloys were oxidised for up to 1000 h in synthetic air using thermogravimetric analysis (TGA). Scales that formed on the surfaces of the sample as well as cross sections were analysed by light optical microscopy (LOM), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectrometry(EDS). At 900 degrees C parabolic growth and low weight gains for both tested alloys were observed. The scales are predominantly formed by Al2O3 with minor amounts of ZrO2. Some Fe2O3 was observed after oxidation at 900 degrees C. At 1000 degrees C oxidation ingresses into the samples along grain boundaries due to preferential oxidation of the Zr-rich precipitates, becoming more severe at higher temperatures. Ingress of oxidation into the sample is more pronounced for the alloy containi

Název v anglickém jazyce

High-temperature oxidation behaviour of Zr alloyed Fe3Al-type iron aluminide

Popis výsledku anglicky

The oxidation behaviour of two Fe3Al-based Fe-Al-Cr-Zr-C alloys has been evaluated between 900 and 1200 degrees C. The alloys contained either (Fe,Al)(2)Zr Laves phase or ZrC carbide. The alloys were oxidised for up to 1000 h in synthetic air using thermogravimetric analysis (TGA). Scales that formed on the surfaces of the sample as well as cross sections were analysed by light optical microscopy (LOM), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectrometry(EDS). At 900 degrees C parabolic growth and low weight gains for both tested alloys were observed. The scales are predominantly formed by Al2O3 with minor amounts of ZrO2. Some Fe2O3 was observed after oxidation at 900 degrees C. At 1000 degrees C oxidation ingresses into the samples along grain boundaries due to preferential oxidation of the Zr-rich precipitates, becoming more severe at higher temperatures. Ingress of oxidation into the sample is more pronounced for the alloy containi

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F12%2F1452" target="_blank" >GAP108/12/1452: Optimalizace vysokoteplotních mechanických vlastností aluminidů železa typu Fe3Al s karbidotvornými prvky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Corrosion Science

ISSN

0010-938X

e-ISSN

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Svazek periodika

63

Číslo periodika v rámci svazku

říjen

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

71-81

Kód UT WoS článku

000307616100009

EID výsledku v databázi Scopus

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