Low Cycle Fatigue of GX12CrMoVNbN9 -1 Cast Steel at 600°C Temperature

Grzegorz Golański; Krzysztof Werner; Stanisław Mroziński

doi:10.4028/www.scientific.net/AMR.396-398.326

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 396-398Low Cycle Fatigue of GX12CrMoVNbN9 -1 Cast Steel...

Low Cycle Fatigue of GX12CrMoVNbN9 -1 Cast Steel at 600°C Temperature

Abstract:

The paper treats of the low cycle fatigue (LCF) behaviour of GX12CrMoVNbN9-1 (GP91) cast steel after heat treatment. Fatigue tests at the temperature of 600oC within the scope of small amount of cycles to failure were carried out for five levels of controlled amplitude of total strain εac = 0.25, 0.30, 0.35, 0.50 and 0.60 %. The investigated cast steel within the scope of low cycle fatigue life reveals a three-stage course of changes in strength and strain. In the given scope of low cycle fatigue for GP91 cast steel, cyclic weakening was observed without the occurrence of stabilization period of its properties.

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Advanced Materials Research (Volumes 396-398)

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326-329

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.396-398.326

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Online since:

November 2011

Authors:

Grzegorz Golański, Krzysztof Werner, Stanisław Mroziński

Keywords:

Cyclic Weakening, Low Cycle Fatigue Life, Martensite Cast Steel

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