Please use this identifier to cite or link to this item: doi:10.22028/D291-23794
Title: High temperature strength of ODS superalloys due to dispersoid-dislocation interaction
Author(s): Arzt, Eduard
Schröder, J. H.
Language: English
Year of Publication: 1986
OPUS Source: High temperature alloys for gas turbines and other applications : proceedings of a conference held in Liège, Belgium, 6 - 9 October 1986 / Betz, W. et al. (eds.). - Dordrecht [u.a.] : Reidel, 1986, S. 1037-1048
SWD key words: ODS-Superlegierung
Inconel MA 6000
DDC notations: 620 Engineering and machine engineering
Publikation type: Conference Paper
Abstract: The microstructure of the oxide-dispersion strengthened (ODS) superalloy Inconel MA 6000 was studied by TEM after creep and high-temperature low-cycle fatigue. The micrographs suggest that an attractive interaction between dislocations and dispersoid particles exists at high temperatures, which makes the detachment of the dislocations from the dispersoids the strength-determining process. These observations are shown to be compatible with a newly developed theory incorporating an attractive interaction in the treatment of particle bypass by dislocation climb. Preliminary comparison between theoretical predictions and experimentally measured "threshold stresses" for creep exhibits promising agreement.
Link to this record: urn:nbn:de:bsz:291-scidok-17304
ISBN: 90-277-2304-4
Date of registration: 29-Oct-2008
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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