Fatigue and ratcheting experimental responses of alloy 617 under high temperature multiaxial loading

Shahriar Quayyum, Mainak Sengupta, Gloria Choi, Clifford Jesse Lissenden, III, Tasnim Hassan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Nickel based Alloy 617 is one of the leading candidate materials for intermediate heat exchanger (IHX) of the next generation nuclear plant (NGNP). The IHX is anticipated to operate at temperatures between 800-950°C, which is in the creep regime. In addition, system start-ups and shut-downs will induce low cycle fatigue (LCF) damages in the IHX components. Hence, designing IHX using Alloy 617 for NGNP construction will require a detailed understanding of the creep-fatigue and ratcheting responses. In this study, a broad set of multiaxial creep-fatigue and ratcheting experiments are performed and the results are critically evaluated. Experiments are conducted by prescribing multiaxial loading histories in axial and shear directions at 850°C and 950°C with different strain rates and strain amplitudes. Experimental results revealed that the axial strain ratcheting and cyclic hardening/softening responses of Alloy 617 vary significantly with temperature levels, strain rates and strain amplitudes indicating the dependence of creep-fatigue and ratcheting responses on these parameters. This necessitates the incorporation of strain rate and strain amplitude dependence and effect of loading non-proportionality and temperature in the unified constitutive modeling (UCM) for a better prediction of the material behavior. Development of a UCM is underway based on the experimental results developed.

Original languageEnglish (US)
Title of host publicationASME 2013 Pressure Vessels and Piping Conference, PVP 2013
DOIs
StatePublished - Dec 1 2013
EventASME 2013 Pressure Vessels and Piping Conference, PVP 2013 - Paris, France
Duration: Jul 14 2013Jul 18 2013

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume3
ISSN (Print)0277-027X

Other

OtherASME 2013 Pressure Vessels and Piping Conference, PVP 2013
CountryFrance
CityParis
Period7/14/137/18/13

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All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Quayyum, S., Sengupta, M., Choi, G., Lissenden, III, C. J., & Hassan, T. (2013). Fatigue and ratcheting experimental responses of alloy 617 under high temperature multiaxial loading. In ASME 2013 Pressure Vessels and Piping Conference, PVP 2013 (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 3). https://doi.org/10.1115/PVP2013-97252