Low cycle fatigue behavior of polycrystalline NI3Al alloys at ambient and elevated temperatures

Low cycle fatigue behavior of polycrystalline NI3Al alloys at ambient and elevated temperatures

An evaluation is conducted of the low cycle fatigue (LCF) resistance of polycrystalline Ni3Al at ambient temperature, 300 C, and 600 C, for strain rates of 0.01 and 0.0001/sec. Test results were combined with electron microscope inspection in order to evaluate microstructural changes during LCF. Cra...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 1994-11, Vol.25 (11), p.2469-2476
Hauptverfasser: WEBB, G, ANTOLOVICH, S. D
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Fatigue
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
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Zusammenfassung:An evaluation is conducted of the low cycle fatigue (LCF) resistance of polycrystalline Ni3Al at ambient temperature, 300 C, and 600 C, for strain rates of 0.01 and 0.0001/sec. Test results were combined with electron microscope inspection in order to evaluate microstructural changes during LCF. Crack initiation is noted to result within persistent slip bands; Cr additions enhanced LCF performance. (AIAA)
ISSN:1073-5623
1543-1940
DOI:10.1007/BF02648865