Fatigue of carburised CrNiMo steel: Testing and modelling concept
In this study, a testing and modelling concept is presented, aimed at estimating the local fatigue properties of carburised CrNiMo steel, covering the fatigue limit under axial and torsional loading at various mean stresses. Aimed at predicting the bulk material properties, all specimens were ultras...
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| Veröffentlicht in: | Fatigue & fracture of engineering materials & structures 2021-03, Vol.44 (3), p.788-804 |
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| container_title | Fatigue & fracture of engineering materials & structures |
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| creator | Böhme, Stephan André Vinogradov, Alexei Biermann, Horst Weidner, Anja Schmiedel, Alexander Henkel, Sebastian |
| description | In this study, a testing and modelling concept is presented, aimed at estimating the local fatigue properties of carburised CrNiMo steel, covering the fatigue limit under axial and torsional loading at various mean stresses. Aimed at predicting the bulk material properties, all specimens were ultrasonic shot‐peened prior to testing. Fractographic analyses were conducted on all specimens using scanning electron microscopy to define the type, size and chemical composition of crack initiation‐related discontinuities. An iteration of the FKM guideline is presented, relying on the external notch concept to explain the effect of large internal notches on the mean stress sensitivity. |
| doi_str_mv | 10.1111/ffe.13394 |
| format | Article |
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| identifier | ISSN: 8756-758X |
| ispartof | Fatigue & fracture of engineering materials & structures, 2021-03, Vol.44 (3), p.788-804 |
| issn | 8756-758X 1460-2695 |
| language | eng |
| recordid | cdi_wiley_primary_10_1111_ffe_13394_FFE13394 |
| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Axial stress Carburizing case hardening Chemical composition Crack initiation Fatigue limit Fatigue tests Iterative methods Material properties materials testing Metal fatigue Modelling multiaxial fatigue Notches subsurface crack initiation Ultrasonic testing very high‐cycle fatigue |
| title | Fatigue of carburised CrNiMo steel: Testing and modelling concept |
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