Fatigue Behavior of Ferritic-Pearlitic-Bainitic Steel – Effect of Positive Mean Stress

Jaroslav Polák; Martin Petrenec

doi:10.4028/www.scientific.net/KEM.417-418.577

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 417-418Fatigue Behavior of Ferritic-Pearlitic-Bainitic...

Fatigue Behavior of Ferritic-Pearlitic-Bainitic Steel – Effect of Positive Mean Stress

Abstract:

The fatigue properties of ferritic-pearlitic-bainitic steel using specimens produced from massive forging were measured in stress controlled regime with positive mean stress. The cyclic creep curves and cyclic hardening/softening curves were evaluated. The fatigue life was plotted in dependence on the mean stress and on the plastic strain amplitude. The principal contribution to the drop of the fatigue life with the mean stress is due to the increase of the plastic strain amplitude in cycling with mean stress.

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Periodical:

Key Engineering Materials (Volumes 417-418)

Pages:

577-580

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.417-418.577

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Online since:

October 2009

Authors:

Jaroslav Polák, Martin Petrenec

Keywords:

Cyclic Creep, Fatigue, Fatigue Life, Mean Stress, Plastic Strain

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References

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