Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
 Lokale TagsFreigabegeschichteDetailsÜbersicht
  Creep strength of centrifugally cast Al-rich TiAl alloys

Sturm, D., Heilmaier, M., Saage, H., Paninski, M., Schmitz, G. J., Drevermann, A., et al. (2009). Creep strength of centrifugally cast Al-rich TiAl alloys. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 510-11, 373-376.

Item is

 

einblenden: alle ausblenden: alle

Basisdaten

einblenden: ausblenden:
Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0028-60FA-D Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0028-60FB-B
Genre: Zeitschriftenartikel

Dateien

einblenden: Dateien
ausblenden: Dateien
:
Sturm_Creep.pdf (beliebiger Volltext), 887KB
 
Datei-Permalink:
-
Name:
Sturm_Creep.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Privat
MIME-Typ / Prüfsumme:
application/pdf
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Sturm, D., Autor
Heilmaier, M., Autor
Saage, H., Autor
Paninski, M., Autor
Schmitz, G. J., Autor
Drevermann, A., Autor
Palm, M., Autor
Stein, F., Autor
Engberding, N., Autor
Kelm, K.1, 2, Autor           
Irsen, S.2, Autor           
Affiliations:
1Center for Materials Analysis, Technische Fakultät, Christian-Albrechts-Universität Kiel, Kaiserstraße 2, D-24143 Kiel, Germany , ou_persistent22              
2Electron Microscopy and Analytics, Center of Advanced European Studies and Research (caesar), Max Planck Society, ou_2173680              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: High-temperature creep of a binary Al60Ti40 (at.%) alloy in the as-cast state and after annealing at 1223 K for 200 h which produced nearly lamellar gamma-TiAl + r-Al2Ti microstructure was studied utilizing creep compression tests in a temperature range between 1173 and 1323 K in air. The material was manufactured by centrifugal casting. Microstructural characterization was carried out employing light-optical scanning (SEM) and transmission electron microscopy (TEM) as well as X-ray diffraction (XRD) analyses. It is shown that the alloy exhibits reasonable creep resistance at 1173 K, especially in relation to its low density of around 3.8 g/cm(3). Stress exponents calculated as n = Delta log (strain rate)/Delta log (stress) = 4 were found to be relatively constant for the temperature and stress regime investigated. This indicates that dislocation climb may be the rate controlling creep mechanism. The assessment of creep tests conducted at identical stress levels and varying temperatures yielded activation energies for creep of around Q = 457 kJ/mol in the as-cast condition. This value is significantly higher than those found in literature for interdiffusion of Al or Ti in gamma-TiAl. It is concluded that the difference is a due to the instability of the microstructure of the as-cast multi-phase alloy. (C) 2009 Published by Elsevier B.V

Details

einblenden:
ausblenden:
Sprache(n):
 Datum: 2009
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: ISI:000266397800069
ISSN: 0921-5093
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
  Alternativer Titel : Mater. Sci. Eng. A Struct. Mater.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 510-11 Artikelnummer: - Start- / Endseite: 373 - 376 Identifikator: -