Low-cycle fatigue of a VZh175 high-temperature alloy under elastoplastic deformation conditions

The low-cycle fatigue of a VZh175 nickel superalloy is studied under conditions of complete deformation per loading cycle at an initial cycle asymmetry R = 0, a deformation amplitude ɛ a = 0.4–0.6%, and a temperature of 20 and 650°C. The specific features of cyclic hardening/softening of the alloy u...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Russian metallurgy Metally 2015-04, Vol.2015 (4), p.317-323
Hauptverfasser:	Belyaev, M. S., Terent’ev, V. F., Bakradze, M. M., Gorbovets, M. A., Gol’dberg, M. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplitudes Applied Problems of Strength and Plasticity Asymmetry Chemistry and Materials Science Crack propagation Deformation Elastoplasticity Low cycle fatigue Materials Science Metallic Materials Nickel base alloys Nucleation
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The low-cycle fatigue of a VZh175 nickel superalloy is studied under conditions of complete deformation per loading cycle at an initial cycle asymmetry R = 0, a deformation amplitude ɛ a = 0.4–0.6%, and a temperature of 20 and 650°C. The specific features of cyclic hardening/softening of the alloy under these conditions are detected. The mechanisms of fatigue crack nucleation and growth are analyzed as functions of the deformation amplitude and the test temperature.
ISSN:	0036-0295 1555-6255 1531-8648
DOI:	10.1134/S0036029515040023