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|Title:||High temperature strength of ODS superalloys due to dispersoid-dislocation interaction|
Schröder, J. H.
|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:||Part of Conference Proceedings|
|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|
|Date of registration:||29-Oct-2008|
|Faculty:||SE - Sonstige Einrichtungen|
|Department:||SE - INM Leibniz-Institut für Neue Materialien|
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