Assessment of influence of structural parameters on mechanical characteristics of directional hypo-stoichiometric Ni3Al based alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F09%3A00022091" target="_blank" >RIV/61989100:27360/09:00022091 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of influence of structural parameters on mechanical characteristics of directional hypo-stoichiometric Ni3Al based alloys

Popis výsledku v původním jazyce

Samples of Ni3Al based alloys with hypo-stoichiometric composition, i.e. 23 and 22 at.% of aluminium were used for testing of selected mechanical properties. The samples were not alloyed by any impure elements. They were first cast into the shape of bars, which were then crystallised by Bridgman?s method. The samples were inserted into corundum tubes with a specified apex angle. Short tensile bars were prepared by lathe-turning with length of 55 mm and diameter of central part of the bar 5 mm. These samples show unusually high conventional values of ductility till ultimate strength, while values of strength limit were partly reduced in the samples with 22 at. % of aluminium. All the samples prepared in this manner had orientated structure, which was formed by the phase Ni3Al, but they contain also two-phase areas formed by solidified solution of nickel (?) and Ni3Al (??), so called network structure ?/??.

Název v anglickém jazyce

Assessment of influence of structural parameters on mechanical characteristics of directional hypo-stoichiometric Ni3Al based alloys

Popis výsledku anglicky

Samples of Ni3Al based alloys with hypo-stoichiometric composition, i.e. 23 and 22 at.% of aluminium were used for testing of selected mechanical properties. The samples were not alloyed by any impure elements. They were first cast into the shape of bars, which were then crystallised by Bridgman?s method. The samples were inserted into corundum tubes with a specified apex angle. Short tensile bars were prepared by lathe-turning with length of 55 mm and diameter of central part of the bar 5 mm. These samples show unusually high conventional values of ductility till ultimate strength, while values of strength limit were partly reduced in the samples with 22 at. % of aluminium. All the samples prepared in this manner had orientated structure, which was formed by the phase Ni3Al, but they contain also two-phase areas formed by solidified solution of nickel (?) and Ni3Al (??), so called network structure ?/??.

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

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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

Hutnické listy

ISSN

0018-8069

e-ISSN

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Svazek periodika

62

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

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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