The influence of texture on the creep behaviour of the ods nickel-base alloy pm 1000

A significant contribution of texture to the creep strength of ODS PM 1000 has been observed, while the influence of GAR has been shown to be negligible. Despite identical Schmid factors the < 110 > -oriented samples reveal a higher Taylor factor M compared to the < 100 > orientation whi...

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Veröffentlicht in:	Scripta materialia 1998-10, Vol.39 (10), p.1365-1370
Hauptverfasser:	Heilmaier, M., Müller, F.E.H., Eisenmeier, G., Reppich, B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: structure, mechanical and thermal properties CORRELATIONS CREEP DEFORMATION Exact sciences and technology FLOW STRESS GRAIN ORIENTATION MATERIALS SCIENCE Mechanical and acoustical properties of condensed matter Mechanical properties of solids Metals. Metallurgy NICKEL BASE ALLOYS Physics TEXTURE
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Zusammenfassung:	A significant contribution of texture to the creep strength of ODS PM 1000 has been observed, while the influence of GAR has been shown to be negligible. Despite identical Schmid factors the < 110 > -oriented samples reveal a higher Taylor factor M compared to the < 100 > orientation which is explained by the deviation from homogeneous shape change of the specimen's cross-section during plastic deformation. With the different M values obtained the temperature-normalised Norton-plot shows a good correspondence of all creep data. Future work on < 111 > -oriented samples (hard orientation) is in progress and may support our conclusions.
ISSN:	1359-6462 1872-8456
DOI:	10.1016/S1359-6462(98)00322-4