Počet záznamů: 1
Creep in directionally solidified NiAl-Mo eutectics
- 1.0375996 - ÚFM 2012 RIV US eng J - Článek v odborném periodiku
Dudová, Marie - Kuchařová, Květa - Barták, Tomáš - Bei, H. - George, E.P. - Somsen, Ch. - Dlouhý, Antonín
Creep in directionally solidified NiAl-Mo eutectics.
Scripta Materialia. Roč. 65, č. 8 (2011), s. 699-702. ISSN 1359-6462. E-ISSN 1872-8456
Grant CEP: GA ČR GA202/09/2073
Výzkumný záměr: CEZ:AV0Z20410507
Klíčová slova: high - temperature creep * NiAl - Mo eutectic * Mo fibres
Kód oboru RIV: JG - Hutnictví, kovové materiály
Impakt faktor: 2.699, rok: 2011
A directionally solidified NiAl–Mo eutectic and an NiAl intermetallic, having respective nominal compositions Ni–45.5Al–9Mo and Ni–45.2Al (at.%), were loaded in compression at 1073 and 1173 K. Formidable strengthening by regularly distributed Mo fibres (average diameter 600 nm, volume fraction 14%) was observed. The fibres can support compression stresses transferred from the plastically deforming matrix up to a critical stress of the order of 2.5 GPa, at which point they yield. Microstructural evidence is provided for the dislocation-mediated stress transfer from the NiAl to the Mo phase.
Trvalý link: http://hdl.handle.net/11104/0208517
Počet záznamů: 1