Properties of bulk nanostructured Al-based alloy at cyclic loading

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Properties of bulk nanostructured Al-based alloy at cyclic loading

Popis výsledku v původním jazyce

Al-based alloy having a nominal chemical composition of Al93Fe3Cr2Ti2 (at.%) is highly promising structural material due to advantageous weight-strength ratio and in comparison with commercially used Al alloys also good thermal stability because of presence of reinforcing icosahedral quaiscrystals in the structure. In the present work the mechanical properties and especially fatigue behaviour of this type of nanoquazicrystalline material obtained in bulk form are described. For cyclic loading the cylindrical specimens were machined from two types of extrudates with different powder particle size (PPS). Fatigue properties were studied using servohydraulic MTS machine and cyclic loading was performed at constant stress amplitude with positive mean stress. Measured stress-strain data were evaluated and fatigue life in form of S-N curves was obtained. Fracture surface of broken testpieces was observed, fractographic analysis was performed and fracture mechanism was evaluated.

Název v anglickém jazyce

Properties of bulk nanostructured Al-based alloy at cyclic loading

Popis výsledku anglicky

Al-based alloy having a nominal chemical composition of Al93Fe3Cr2Ti2 (at.%) is highly promising structural material due to advantageous weight-strength ratio and in comparison with commercially used Al alloys also good thermal stability because of presence of reinforcing icosahedral quaiscrystals in the structure. In the present work the mechanical properties and especially fatigue behaviour of this type of nanoquazicrystalline material obtained in bulk form are described. For cyclic loading the cylindrical specimens were machined from two types of extrudates with different powder particle size (PPS). Fatigue properties were studied using servohydraulic MTS machine and cyclic loading was performed at constant stress amplitude with positive mean stress. Measured stress-strain data were evaluated and fatigue life in form of S-N curves was obtained. Fracture surface of broken testpieces was observed, fractographic analysis was performed and fracture mechanism was evaluated.

Druh

D - Stať ve sborníku

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

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2010. 2nd International Conference

ISBN

978-80-87294-19-2

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Olomouc

Datum konání akce

12. 10. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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