Vysokoteplotní mechanické vlastnosti intermetalické slitiny na bázi Fe-40%at Al s C nebo Ti přísadami

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25797000%3A_____%2F09%3A%230000129" target="_blank" >RIV/25797000:_____/09:#0000129 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/09:00157716 RIV/00216208:11320/09:00206381

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

High-temperature mechanical properties of Fe-40at.% Al based intermetallic alloys with C or Ti addition

Popis výsledku v původním jazyce

Tensile and creep properties of vacuum-induction-melted and cast Fe-40Al-1C and Fe-40Al-1Ti (at.%) were studied. The ingots were hot-rolled at 1200°C to plates of 12.5 mm thickness using a stainless steel sheath and cooled in air. The alloys showed microstructures with coarse elongated grains having diameters up to 500 and 300 ?m in the direction of rolling, respectively. Tensile tests were carried out at temperatures 20, 400, 600, 700, and 800°C. The creep tests were performed under constant load of 100 MPa and 150 MPa at temperatures 550, 600, 650, and 670°C. Fracture surfaces of tensile specimens tested up to 700°C exhibited mainly intergranular decohesion. With increasing temperature, the proportion of ductile dimpled fracture increased, and at 800°C the fracture surfaces of both alloys were practically completely covered by ductile dimples. In comparison to tensile test specimens, fracture surfaces of creep specimens showed an increased fraction of intergranular ductile fracture.

Název v anglickém jazyce

High-temperature mechanical properties of Fe-40at.% Al based intermetallic alloys with C or Ti addition

Popis výsledku anglicky

Tensile and creep properties of vacuum-induction-melted and cast Fe-40Al-1C and Fe-40Al-1Ti (at.%) were studied. The ingots were hot-rolled at 1200°C to plates of 12.5 mm thickness using a stainless steel sheath and cooled in air. The alloys showed microstructures with coarse elongated grains having diameters up to 500 and 300 ?m in the direction of rolling, respectively. Tensile tests were carried out at temperatures 20, 400, 600, 700, and 800°C. The creep tests were performed under constant load of 100 MPa and 150 MPa at temperatures 550, 600, 650, and 670°C. Fracture surfaces of tensile specimens tested up to 700°C exhibited mainly intergranular decohesion. With increasing temperature, the proportion of ductile dimpled fracture increased, and at 800°C the fracture surfaces of both alloys were practically completely covered by ductile dimples. In comparison to tensile test specimens, fracture surfaces of creep specimens showed an increased fraction of intergranular ductile fracture.

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

<a href="/cs/project/GA106%2F06%2F0019" target="_blank" >GA106/06/0019: Slitiny na bázi Fe - 40 at.% Al jako základ pro aplikace za vysokých teplot</a><br>

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

International Journal of materials research

ISSN

1862-5282

e-ISSN

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Svazek periodika

100

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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