Probabilistic fatigue S–N curves including the super-long life regime of a railway axle steel

Zhao, Yongxiang; Yang, Bing; Feng, Ming Fei; Wang, H.

doi:10.1016/j.ijfatigue.2009.04.016

Cited by 46 publications

(44 citation statements)

References 14 publications

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“…In particular, 25CrMo steel has been used for high-speed axles because low-alloy chromium steels have the high strength and good ductility suitable for the high speed gears and axle components in engineering or transport applications. The mechanical requirements for components such as railway speeds axles are stricter because of their high-speed rotations and long service lives [1][2][3][4]. The literature has reported on the corrosion-fatigue [2], super-long life regime of railway axle steel [3,4] and fatigue properties of railway axles so far in the context of results of full-scale specimens [5].…”

Section: Introductionmentioning

confidence: 99%

“…The mechanical requirements for components such as railway speeds axles are stricter because of their high-speed rotations and long service lives [1][2][3][4]. The literature has reported on the corrosion-fatigue [2], super-long life regime of railway axle steel [3,4] and fatigue properties of railway axles so far in the context of results of full-scale specimens [5]. The traditional fatigue strength design is based on a fatigue limit of materials of approximately 10 7 cycles or more for samples that do not fracture [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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High-Cycle Microscopic Severe Corrosion Fatigue Behavior and Life Prediction of 25CrMo Steel Used in Railway Axles

Wang

et al. 2017

Metals

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Abstract:The effects of environmental media on the corrosion fatigue fracture behavior of 25CrMo steel were investigated. The media include air, and 3.5 wt % and 5.0 wt % NaCl solutions. Experimental results indicate that the media induces the initiation of corrosion fatigue cracks at multiple sites. The multi-cracking sites cause changes in the crack growth directions, the crack growth rate during the coupling action of the media, and the stress amplitude. The coupling effects are important for engineering applications and research. The probability and predictions of the corrosion fatigue characteristic life can be estimated using the three-parameter Weibull distribution function.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-Cycle Microscopic Severe Corrosion Fatigue Behavior and Life Prediction of 25CrMo Steel Used in Railway Axles

Wang

et al. 2017

Metals

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“…Such actions require review and extending of existing approaches in particular justification of fatigue life and crack growth resistance of railway axle steel [3][4][5]. The solution to this problem is impossible without obtaining experimental data about influence of exploitation and temperature factors on fracture mechanisms of railway axle steel [6].…”

Section: Introductionmentioning

confidence: 99%

Micromechanisms of Ferrite-Pearlite Steels Fracture Under Cyclic and Impact Loading

Maruschak

Sorochak

Brezinov

et al. 2017

Acta Metall Slovaca

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During operation, the railway axle is exposed to static, cyclic and dynamic loading that is accompanied by influence of corrosive environments. This causes the accumulation of structural and mechanical damages in the material, formation of corrosion and mechanical micro-defects that are potential sites of fatigue crack nucleation and growth. This requires the development of failure analysis methods that allow determining main mechanisms of ferrite-pearlite steels fracture on the micro scale level. The railway axle's material -the OSL steel -main regularities of temperature influence on fracture mechanisms in ferrite-pearlite steel type are shown. Qualitative and quantitative analysis of fracture surface of Charpy specimens tested at 20°C and -40°C was performed on micro scale level using SEM investigation.

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“…Some methods are also proposed to predict the fatigue life or fatigue strength containing VHCF regime [16][17][18][19]. Murakami et al [9,20] combined the parameters of fatigue strength r (MPa), Vickers hardness Hv (kgf/mm 2 ) and the square root of inclusion or defect projection area ffiffiffiffiffiffiffiffiffi ffi area p (lm) to give an equation for predicting the fatigue strength of high-strength steels:…”

Section: Introductionmentioning

confidence: 99%

Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure

Sun

Lei

Xie

et al. 2013

International Journal of Fatigue

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a b s t r a c tExperimental results indicate that the fatigue life reduces by about two orders of magnitude when inclusion size doubles. Then, a model is proposed for predicting the fatigue strength of high-strength steels with fish-eye mode failure based on the experimental results for the effect of inclusion size and stress ratio. In the model, the effect of inclusion size a 0 and stress ratio R on fatigue strength r a is expressed as r a / a 0, where m and a are material parameters. The predicted results are in good agreement with our experimental results and the ones reported in literature.

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Probabilistic fatigue S–N curves including the super-long life regime of a railway axle steel

Cited by 46 publications

References 14 publications

High-Cycle Microscopic Severe Corrosion Fatigue Behavior and Life Prediction of 25CrMo Steel Used in Railway Axles

High-Cycle Microscopic Severe Corrosion Fatigue Behavior and Life Prediction of 25CrMo Steel Used in Railway Axles

Micromechanisms of Ferrite-Pearlite Steels Fracture Under Cyclic and Impact Loading

Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure

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