Understanding the factors controlling rolling contact fatigue damage in VIM-VAR M50 steel

Rydel, Jakub Jelita; Toda‐Caraballo, Isaac; Guétard, Gaël; Rivera-Dı́az-del-Castillo, P.E.J.

doi:10.1016/j.ijfatigue.2017.10.018

Cited by 51 publications

(9 citation statements)

References 37 publications

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“…The rolling contact fatigue (RCF) failure of the bearing exists in many practical engineering fields, such as wind turbines, 1 railways, 2 and aerospace 3 . Thus, the evaluation of the bearing RCF performance is a critical process to assess the reliability of the machinery.…”

Section: Introductionmentioning

confidence: 99%

“…The rolling contact fatigue (RCF) failure of the bearing exists in many practical engineering fields, such as wind turbines, 1 railways, 2 and aerospace. 3 Thus, the evaluation of the bearing RCF performance is a critical process to assess the reliability of the machinery. The subsurface material of the bearing outer ring is subject to triaxial stress state, which consists of alternating three normal stresses and one shear stress with high compressive stress during the service period.…”

Section: Introductionmentioning

confidence: 99%

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A life prediction model for rolling contact fatigue based on the improved moment of load path method

Zhao,

Wang,

Sun

2023

Fatigue Fract Eng Mat Struct

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An improved moment of load path model for rolling contact fatigue life prediction is proposed in this paper. First, the complex multiaxial stress variation of the subsurface materials under rolling contact conditions was analyzed by the finite element method. Next, the equivalent stress parameter was presented to characterize the complex stress state based on the improved moment of load path method. The key concept of the proposed method is building a new coordinate system for analyzing the load path of the complex multiaxial stress state. The efficiency of the proposed model was validated with different kinds of fatigue test results in the existing literature. The model results show a good agreement with the test data. Finally, the model was used to obtain the relationship of the Hertz stress versus fatigue life under rolling contact conditions according to the fatigue life data.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A life prediction model for rolling contact fatigue based on the improved moment of load path method

Zhao,

Wang,

Sun

2023

Fatigue Fract Eng Mat Struct

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“…Second is in order to meet the requirement of aircrafts with better fatigue properties, the vacuum induction melting (VIM) plus vacuum arc remelting (VAR) processes, which are usually shortly named as the VIM + VAR smelting process. The VIM + VAR process gives much more refined and evenly distributed inclusions, but with a high production cost and a relative low production rate, resulting from its expensive raw materials 17 . The SAE 52100 steel fabricated by the VIM + VAR exhibits the ultimate tensile strength around2500 MPa, and its rolling contact fatigue life of L 10 ≥ 3.0 × 10 7 cycles under a Hertz stress of 4.5 GPa, which is three times longer than that of the traditional CSR steel 10,18 .…”

Section: Introductionmentioning

confidence: 99%

Improve fatigue and mechanical properties of high carbon bearing steel by a new double vacuum melting route

Shi

Wang

Gao

et al. 2022

Fatigue Fract Eng Mat Struct

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A new double vacuum melting route (conventional second refining + vacuum arc refining [CSR + VAR]) with 33% lower production cost than the traditional VIM + VAR route has been tried. Compared with the CSR route, the CSR + VAR route reduces the average inclusion size from 27.1 ± 12.3 μm to 13.7 ± 2.4 μm, and the CSR + VAR steel processes a 13.1% higher rotatory bending fatigue (RBF) fatigue strength (σ À1 ) and a 3-timeslonger RCF L 10 life.The crescent-shaped granular bright facet (GBF) zone, normally found in high-strength steels' very high cycle fatigue regimes beyond 10 7 cycles normally under a much lower stress amplitude, appears around inner inclusions on the CSR + VAR steel RBF fracture surfaces in high cycle fatigue regimes beyond 3 Â 10 5 cycles. The development of GBF zones is estimated to account for 79%-90% of the RBF fatigue life. The average crack propagation rate (da/dN) for GBF zones varies from 1.3 Â 10 À12 m/cycle to 24 Â 10 À12 m/cycle and increases with the stress amplitude.

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“…DER and WEBs are ferrite-carbide intergrowth microstructures produced by stress-induced carbon migration assisted with dislocation movement [6][7][8][9][10]. No matter which feature microstructure it is, it is the result of stress-induced phase transition, which has been recognised and accepted by many scholars [4,5,11,12]. The reason is that the service condition of the bearing is generally below 70 • C, which belongs to the normal temperature range for steel materials.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Research on Response of GCr15 Bearing Steel under Cyclic Compression

Xiulin

Zhang

2020

Materials

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During the bearing service, a series of microstructural evolutions will arise inside the material, such as the appearance of feature microstructures. The essential reason for the microstructural evolution is the cumulative effect of cyclic stress. The Hertz Contact formula is usually adopted to calculate the internal stress, and there is a correlation between the shape and distribution of the feature microstructure and the stress distribution. But it is insufficient to explain the relationship between the morphology of feature microstructures and the rolling direction, such as specific angles in butterfly and white etching bands. The rolling phenomenon will cause the asymmetry of stress distribution in the material, which is the source of the rolling friction coefficient. Moreover, slipping or microslip will produce additional stress components, which also cause the asymmetry of the stress field. However, there is no experimental or theoretical explanation for the relationship between the asymmetry of the stress field and the feature microstructure. According to the current theory, the appearance of feature microstructures is caused by stress with or without rolling. Therefore, it is of great significance to study the formation mechanism: whether feature microstructures will appear in the uniaxial cyclic compression stress field without rolling. In this paper, uniaxial cyclic compressive stress was loaded into a plate-ball system and a cylinder system. The characteristics of microstructural change of bearing steel (GCr15) were studied. It was found that the hardness of the material increased after the cyclic compressive load, and the inclusions interacted with the matrix material. In the local microregion a white etching area was found, although the scale is very small. No large-scale feature microstructures appeared. Other phenomena in the experiment are also described and analyzed. For example, the production of oil film in the contact area and the changing law of alternating load.

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Understanding the factors controlling rolling contact fatigue damage in VIM-VAR M50 steel

Cited by 51 publications

References 37 publications

A life prediction model for rolling contact fatigue based on the improved moment of load path method

A life prediction model for rolling contact fatigue based on the improved moment of load path method

Improve fatigue and mechanical properties of high carbon bearing steel by a new double vacuum melting route

Preliminary Research on Response of GCr15 Bearing Steel under Cyclic Compression

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