Validation of a Phenomenological Lifetime Estimation Method with Biaxial Experiments at High Temperature

Lu Cui; Peng Wang

doi:10.4028/www.scientific.net/AMR.602-604.2251

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Validation of a Phenomenological Lifetime...

Validation of a Phenomenological Lifetime Estimation Method with Biaxial Experiments at High Temperature

Abstract:

Modern 9-12%Cr steels are widely used for steam turbine components. For the design optimization and lifetime estimation of steam turbines, it is very important to investigate and describe the deformation as well as crack initiation behavior at critical location of steam turbine components under multiaxial service-type loading conditions. In this paper a phenomenological lifetime estimation method was validated by multiaxial loading. The applicability and reliability of this lifetime estimation model was confirmed by a recalculation of biaxial creep fatigue tests performed on cruciform specimens of rotor steel X12CrMoWVNbN10-1-1 successfully.

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Periodical:

Advanced Materials Research (Volumes 602-604)

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2251-2254

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.2251

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Online since:

December 2012

Authors:

Lu Cui, Peng Wang

Keywords:

9-12%Cr, Bi-Axial, Creep Fatigue, Cruciform Specimen, Lifetime, Service-Type

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