Vliv křemíku na strukturu slitin typu Fe-40 at.% Al s vysokým obsahem uhlíku (1.9-3.8 at.%)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F09%3A00325368" target="_blank" >RIV/68081723:_____/09:00325368 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/09:00207066

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The effect of silicon on the structure of Fe-40 at.% Al type alloys with high contents of carbon (1.9-3.8 at.%)

Popis výsledku v původním jazyce

The phase compositions of alloys based on Fe-40 at.% A] with additions of carbon ranging from 1.9 to 3.8 at.% and with and without the addition of 1.2 at.% Si were studied by light optical and transmission electron microscopies, X-ray diffraction and electron probe microanalysis. The structure of the matrix of all alloys is a B2 lattice, inherent to the intermetallic compound FeAl. Two main precipitating phases are observed: graphite and aluminium carbide Al4C3. The quantity of the phases depends in detail on the chemical composition and the heat treatment. The presence of Al4C3 in the alloys with the highest carbon content is in agreement with the recent theoretical prediction of a Fe-Al-C ternary phase diagram by Ohtani et al., as well as with olderexperiments of Vyklicky and Tuma. The occurrence of Al4C3 is supported by the addition of silicon. Small traces of carbide kappa of perovskite-type Fe3AlC are observed only in the alloys with the lowest aluminium and carbon contents.

Název v anglickém jazyce

The effect of silicon on the structure of Fe-40 at.% Al type alloys with high contents of carbon (1.9-3.8 at.%)

Popis výsledku anglicky

The phase compositions of alloys based on Fe-40 at.% A] with additions of carbon ranging from 1.9 to 3.8 at.% and with and without the addition of 1.2 at.% Si were studied by light optical and transmission electron microscopies, X-ray diffraction and electron probe microanalysis. The structure of the matrix of all alloys is a B2 lattice, inherent to the intermetallic compound FeAl. Two main precipitating phases are observed: graphite and aluminium carbide Al4C3. The quantity of the phases depends in detail on the chemical composition and the heat treatment. The presence of Al4C3 in the alloys with the highest carbon content is in agreement with the recent theoretical prediction of a Fe-Al-C ternary phase diagram by Ohtani et al., as well as with olderexperiments of Vyklicky and Tuma. The occurrence of Al4C3 is supported by the addition of silicon. Small traces of carbide kappa of perovskite-type Fe3AlC are observed only in the alloys with the lowest aluminium and carbon contents.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

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

17

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000261920200007

EID výsledku v databázi Scopus

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