Rolling contact deformation, etching effects, and failure of high-strength bearing steel

Bhargava, Vasishta; Hahn, G. T.; Rubin, Carol

doi:10.1007/bf02647240

Cited by 47 publications

(18 citation statements)

References 17 publications

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“…Despite the different acquisition methods of previous studies [3][4][5], all data showed ∆γ C in the order of 10 −4 , supporting the results obtained in this study. Only the value used by Bhargava et al [6] and Hahn et al [12] for their calculations is significantly higher (Fig. 14b).…”

Section: Materials Response (∆γ C and Pmax )mentioning

confidence: 75%

“…∆γ C was acquired from the resulting stabilised loop. Both Bhargava et al [6] and Hahn et al [12] employed the same material properties of normal stressstrain hysteresis loop in Fig. 1b In addition to ∆γ C , the maximum plastic strain ( p,max ) has been acquired for each cycle during the testing.…”

Section: Plastic Strain Data Acquisitionmentioning

confidence: 99%

“…However, not enough data were obtained for stress-controlled tests, and the stress-strain responses used for calculations vary. For example, Warhadpande et al simulated subsurface spalling during bearing operation [5] and Bhargava et al calculated material deformation during rolling contact to predict the white-etching band morphology [6]. Although they both incorporated elastic linear kinematic plasticity, the material parametres were significantly different, especially for the yield limit (2.30 GPa versus 1.05 GPa) and the strain hardening slope (10 GPa versus 188 GPa) as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue in martensitic 100Cr6: Relationship between rolling contact fatigue microstructural transitions and repetitive push testing

Kang

Rivera-Dı́az-del-Castillo

2014

Materials Science and Engineering: A

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Repetitive uniaxial fatigue testing is introduced to reproduce a similar magnitude of compressive stress to rolling contact during bearing operation, and to investigate the associated microstructural transitions. During the test, the strain per cycle responsible for fatigue damage can be measured. The observed hardness increase suggests that the developed residual stress level is similar to that formed on ball-on-rod bearing testing. The suggested methodology would be helpful in determining the strain responsible for plastic deformation in rolling contact fatigue, as well as for appraising the quality of bearing materials employed for bearing elements.

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Section: Materials Response (∆γ C and Pmax )mentioning

confidence: 75%

Section: Plastic Strain Data Acquisitionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fatigue in martensitic 100Cr6: Relationship between rolling contact fatigue microstructural transitions and repetitive push testing

Kang

Rivera-Dı́az-del-Castillo

2014

Materials Science and Engineering: A

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“…The probabilistic engineering models include the formulas to predict RCF life, and the formula parameters were obtained from extensive experimental testing. Lundberg and Palmgren [19,20] [27] based on plastic strain accumulation under the cyclic contact stress. Other similar prediction models can be found in [28][29][30].…”

Section: Multiscale Modeling and Simulation Of Rolling Contact Fatiguementioning

confidence: 99%

Multiscale modeling and simulation of rolling contact fatigue

Gharehbagh

Ali

2018

International Journal of Fatigue

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iii ABSTRACT In this thesis, a hierarchical multiscale method was developed to predict rolling contact fatigue lives of mechanical systems. In the proposed multiscale method, the molecular modeling and simulation of lubricant was conducted to investigate the friction between rolling contact surfaces. The calculated friction coefficient was passed to the continuum model of rolling contact components to predict fatigue lives.Molecular dynamics modeling and simulation of thin film lubrication and lubricated contact surfaces were carried out to investigate mechanisms of hydrodynamic lubrication at nano-scale first. Although various lubricant alkane chains were considered in the molecular model, the chain length of eight united molecules were mainly employed in this thesis. In addition, the effects of temperature and nano-particles (debris) on the friction forces were discussed. It was found that the existing of nano-particles (debris) could increase the friction force between contact surfaces with hydrodynamic lubrication.In the continuum model of the developed multiscale method, finite element analysis was employed to predict rolling contact fatigue life of rolling contact components, including bearing and gear-tooth. Specifically, the fatigue crack initiation of bearing was studied, and then the fatigue crack initiation and propagation in gear-tooth. In addition, the enhancement of gear-tooth fatigue life by using composite patches was discussed as well. It should be noted that the friction coefficient used in the continuum model was calculated in the molecular model. It is one-way message passing in iv the developed multiscale method.Another continuum method was studied and developed in this thesis to provide alternate methods for the continuum model in the proposed multiscale framework.Peridynamics method has advantages in modeling and simulation of discontinuities, including cracks, over the conventional finite element methods. The applications of Peridynamics in predicting fatigue crack initiation and propagation lives were discussed in this thesis. v PUBLIC ABSTRACTThis research aims to develop a hierarchical multiscale method to predict rolling contact fatigue lives of mechanical systems. In the proposed multiscale method, the molecular modeling and simulation of lubricant was conducted to investigate the friction between rolling contact surfaces. The calculated friction coefficient was passed to the continuum model of rolling contact components to predict fatigue lives.Molecular dynamics modeling and simulation of thin film lubrication and lubricated contact surfaces were carried out to investigate mechanisms of hydrodynamic lubrication at nano-scale first. In addition, the effects of temperature and nano-particles (debris) on the friction forces were discussed. It was found that the existing of nanoparticles (debris) could increase the friction force between contact surfaces with hydrodynamic lubrication.In the continuum model of the developed multiscale method, finite element analysis was employed to pred...

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“…Tunnel boring machines (TBM) are the main engineering machinery in shield tunnel construction as a large excavation equipment . The quality of the bearing ring, which is the key part of TBM, can directly determine the service life and reliability of the whole machinery . Considering the large size of the bearing ring, a medium carbon–chromium steel with additions of alloying elements is chosen to achieve the superior combination of strength, wear resistance, and toughness .…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbide Distribution on the Grain Refinement in the Steel for Large‐Size Bearing Ring

Dong

Jiang

Mei

et al. 2015

steel research int.

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The effect of carbide distribution on the grain refinement in the steel for large-size bearing ring is investigated. It is observed that Ni-containing steel has an obvious grain refinement below 1050 8C, whereas its grain growth trend is steeper than that of Ni-free steel above 1050 8C. No evident segregation of Ni is observed, whereas the pinning effect of carbides distributed along grain boundaries is advantageous for the grain refinement. It is found that Ni addition could affect the type of carbides and contribute to decreasing the size of carbides via accelerating the diffusion of carbon. A stronger pinning effect with smaller carbides distributed along grain boundaries could be obtained, which is beneficial to grain refinement with Ni addition in small amounts.

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Rolling contact deformation, etching effects, and failure of high-strength bearing steel

Cited by 47 publications

References 17 publications

Fatigue in martensitic 100Cr6: Relationship between rolling contact fatigue microstructural transitions and repetitive push testing

Fatigue in martensitic 100Cr6: Relationship between rolling contact fatigue microstructural transitions and repetitive push testing

Multiscale modeling and simulation of rolling contact fatigue

Effect of Carbide Distribution on the Grain Refinement in the Steel for Large‐Size Bearing Ring

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