On dual-slope linear cyclic hardening of Hastelloy X

In low cycle fatigue deformation of Hastelloy X, a unique dual-slope linear cyclic hardening is observed, with transition region in between, followed by non-linear hardening till failure. Though both temperature and accumulated strain can enhance the carbide precipitation, interestingly it is observ...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2010-06, Vol.527 (16), p.3848-3851
Hauptverfasser:	Reddy, G.V. Prasad, Harini, P., Sandhya, R., Rao, K. Bhanu Sankara, Paretkar, R.K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplitudes Applied sciences Carbides Cyclic hardening Exact sciences and technology Fatigue Fatigue failure Hardening Low cycle Fatigue Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Microstructure Ni-based superalloy Nonlinearity Precipitation Strain
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Beschreibung
Zusammenfassung:	In low cycle fatigue deformation of Hastelloy X, a unique dual-slope linear cyclic hardening is observed, with transition region in between, followed by non-linear hardening till failure. Though both temperature and accumulated strain can enhance the carbide precipitation, interestingly it is observed that transition region is found to be more sensitive to change in applied strain amplitude rather than changes in temperature.
ISSN:	0921-5093 1873-4936
DOI:	10.1016/j.msea.2010.02.062