Název: Properties of bulk nanostructured Al-based alloy at cyclic loading
Autoři: Chlupová, Alice ; Chlup, Zdeněk
Typ dokumentu: Příspěvky z konference
Konference/Akce: NANOCON 2010. International Conference /2./, Olomouc (CZ), 2010-10-12 / 2010-10-14
Rok: 2011
Jazyk: eng
Abstrakt: 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.
Klíčová slova: Fatigue; Mechanical properties; Nanostructured materials
Číslo projektu: CEZ:AV0Z20410507 (CEP)
Zdrojový dokument: NANOCON 2010. 2nd International Conference, ISBN 978-80-87294-19-2

Instituce: Ústav fyziky materiálů AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0190033

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-42061


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav fyziky materiálů
Konferenční materiály > Příspěvky z konference