Název: Effect of alloying and thermal processing on mechanical properties of tial alloys
Autoři: Chlupová, Alice ; Heczko, Milan ; Obrtlík, Karel ; Beran, Přemysl ; Kruml, Tomáš
Typ dokumentu: Příspěvky z konference
Konference/Akce: MSMF8. International Conference on Materials Structure and Micromechanics of Fracture /8./, Brno (CZ), 20160627
Rok: 2017
Jazyk: eng
Abstrakt: Two -based TiAl alloys with 7 at.% of Nb, alloyed with 2 at.% Mo and 0.5 at.% C, were studied. A heat treatment leading to very fine lamellar microstructure was applied on both alloys. Microstructure after the heat treatment was described and mechanical properties including fatigue behaviour were measured. The as-received material alloyed with C possesses high strength and very limited ductility, especially at RT. After application of selected heat treatment it becomes even more brittle; therefore, this process could be considered as not appropriate for this alloy. On the contrary, in the case of Mo alloyed material, both strength and ductility are improved by the heat treatment at RT and usual working temperature (~750 °C). Presence of the phase is responsible for this effect. The selected heat treatment thus can be an alternative for this alloy to other thermomechanical treatments as high temperature forging.
Klíčová slova: Fatigue; Heat treatment; Lamellar microstructure; Mechanical properties; TiAl alloys
Číslo projektu: GAP107/11/0704 (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Materials Structure & Micromechanics of Fracture VIII, ISBN 978-3-03835-626-4, ISSN 1662-9779

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/11104/0276855

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-373284


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