The Influence of Heat-Treatment on the Phase Composition and Coefficient of Thermal Expansion of Fe3Al-Type Alloy with Niobium Addition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F15%3A00001963" target="_blank" >RIV/46747885:24210/15:00001963 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24620/15:00001963

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Influence of Heat-Treatment on the Phase Composition and Coefficient of Thermal Expansion of Fe3Al-Type Alloy with Niobium Addition

Popis výsledku v původním jazyce

Iron aluminides belong to a group of intermetallic materials. Atoms of intermetallics are long-distance arranged that's why these alloys show some interesting properties as high temperature strength or corrosion resistance. Besides of beneficial properties iron aluminides have some disadvantages as e.g. brittleness at room temperature or a sharp drop in strength above 600 °C. It has been shown that the high temperature mechanical properties can be enhanced through third element addition. The structure of Fe3Al alloy with addition of niobium was studied in two states - as cast state and in state after stabilization annealing at 1000 °C for 50 hours. Phase composition was investigated for these samples, because it can affect the alloy properties. The phase composition was determined using scanning electron microscopy (SEM) equipped by energy dispersive analysis (EDX) and electron backscattered diffraction detector (EBSD). The influence of heat-treatment on coefficient of thermal expansion (CTE) was also studied. The CTE's were measured by means of horizontal dilatometer.

Název v anglickém jazyce

The Influence of Heat-Treatment on the Phase Composition and Coefficient of Thermal Expansion of Fe3Al-Type Alloy with Niobium Addition

Popis výsledku anglicky

Iron aluminides belong to a group of intermetallic materials. Atoms of intermetallics are long-distance arranged that's why these alloys show some interesting properties as high temperature strength or corrosion resistance. Besides of beneficial properties iron aluminides have some disadvantages as e.g. brittleness at room temperature or a sharp drop in strength above 600 °C. It has been shown that the high temperature mechanical properties can be enhanced through third element addition. The structure of Fe3Al alloy with addition of niobium was studied in two states - as cast state and in state after stabilization annealing at 1000 °C for 50 hours. Phase composition was investigated for these samples, because it can affect the alloy properties. The phase composition was determined using scanning electron microscopy (SEM) equipped by energy dispersive analysis (EDX) and electron backscattered diffraction detector (EBSD). The influence of heat-treatment on coefficient of thermal expansion (CTE) was also studied. The CTE's were measured by means of horizontal dilatometer.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

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)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Manufacturing Technology

ISSN

1213-2489

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

705-710

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-84949221336