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Erschienen in: Metallurgist 7-8/2013

01.11.2013

Effect of Single-Crystal Billet Macro- and Microstructure on Intermetallic Alloy Static and Dynamic Strength

verfasst von: O. A. Bazyleva, E. G. Arginbaeva, S. A. Golynets, A. B. Echin

Erschienen in: Metallurgist | Ausgabe 7-8/2013

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Abstract

Research is presented for the effect of macro- and microstructure of single-crystal billets of intermetallic alloy VKNA-25 with different crystallographic orientations <001>, <011>, and <111>, prepared by directional crystallization using a seed, on material static an dynamic strength. The effect of microstructure on short- and long-term strength at 900, 1000, 1100, 1200°C on bases of 10, 100, 500, and 1000 h, and low-cycle fatigue (LCF) resistance by a “stiff” cycle, is studied. LCF tests are performed under cyclic tension conditions with a cycle asymmetry coefficient R = 0 at 850 and 1000°C. The dependence of stress rupture strength and LCF on single-crystal billet macro- and microstructure and test temperature is established.

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Metadaten
Titel
Effect of Single-Crystal Billet Macro- and Microstructure on Intermetallic Alloy Static and Dynamic Strength
verfasst von
O. A. Bazyleva
E. G. Arginbaeva
S. A. Golynets
A. B. Echin
Publikationsdatum
01.11.2013
Verlag
Springer US
Erschienen in
Metallurgist / Ausgabe 7-8/2013
Print ISSN: 0026-0894
Elektronische ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-013-9795-9

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