The Effect of High-temperature Deformation on the Structure of Iron Aluminides

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F17%3A00000125" target="_blank" >RIV/46747885:24210/17:00000125 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24620/17:00000125

Výsledek na webu

<a href="https://www.scientific.net/MSF.891.555" target="_blank" >https://www.scientific.net/MSF.891.555</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.891.555" target="_blank" >10.4028/www.scientific.net/MSF.891.555</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Effect of High-temperature Deformation on the Structure of Iron Aluminides

Popis výsledku v původním jazyce

The iron aluminides are very perspective materials with many advantages and of course also disadvantages. One way, how to improve mechanical properties of iron aluminides, is doping of binary alloy by alloying elements, which can form strengthening precipitates. Depending on their size the precipitates of secondary phases can block dislocation movement or act as strengthening phase as known in composite materials. One from many properties, which is important to know before a new type of materiál is used in structural applications, is its deformation behaviour. In present páper there was studied the structure of Fe-25AI-5Zr (in at. %) sample in as cast statě and in states after high-temperature deformation at 600 and 800 °C in detail. A high resolution SEM equipped with EDX and EBSD was used for the study of structure. It was measured that huge grains are presented in the structure of as cast statě. After deformation at 600 °C there were still observed huge Fe3AI-matrix grains, but strongly deformed as is visible in IPF maps. Also formation of subgrains due to deformation is obvious. Deformation at 800°C led to formation of small grains due to recrystallization. Higher deformation degree in non-eutectic areas led to preferential recrystallization while Fe3AI phase in eutectic regions remained deformed (nonrecrystalized).

Název v anglickém jazyce

The Effect of High-temperature Deformation on the Structure of Iron Aluminides

Popis výsledku anglicky

The iron aluminides are very perspective materials with many advantages and of course also disadvantages. One way, how to improve mechanical properties of iron aluminides, is doping of binary alloy by alloying elements, which can form strengthening precipitates. Depending on their size the precipitates of secondary phases can block dislocation movement or act as strengthening phase as known in composite materials. One from many properties, which is important to know before a new type of materiál is used in structural applications, is its deformation behaviour. In present páper there was studied the structure of Fe-25AI-5Zr (in at. %) sample in as cast statě and in states after high-temperature deformation at 600 and 800 °C in detail. A high resolution SEM equipped with EDX and EBSD was used for the study of structure. It was measured that huge grains are presented in the structure of as cast statě. After deformation at 600 °C there were still observed huge Fe3AI-matrix grains, but strongly deformed as is visible in IPF maps. Also formation of subgrains due to deformation is obvious. Deformation at 800°C led to formation of small grains due to recrystallization. Higher deformation degree in non-eutectic areas led to preferential recrystallization while Fe3AI phase in eutectic regions remained deformed (nonrecrystalized).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

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>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Materials Science Forum. Vol. 891(2017), Metallography XVI : Selected, peer reviewed papers from the 16th International Symposium on Metallography and Materials Science.

ISBN

978-3-0357-1018-2

ISSN

02555476

e-ISSN

—

Počet stran výsledku

5

Strana od-do

555-559

Název nakladatele

Trans Tech Publications, Inc.

Místo vydání

Churerstrasse 20, CH-8808 Pfaffikon, Switzerland

Místo konání akce

Stará Lesná, High Tatra Mountains

Datum konání akce

1. 1. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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