Influence of laser dispersed treatment on rolling contact wear and fatigue behavior of railway wheel steel

Zeng, Dongfang; Lu, Liantao; Li, Zhengyang; Zhang, Jiwang; Jin, Xuesong; Zhu, Minhao

doi:10.1016/j.matdes.2013.08.041

Cited by 42 publications

(10 citation statements)

References 27 publications

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“…Up to date, researches on the tribological performance of wheel/rail materials mainly focus on the laser-related treatment of wheel/rail materials [9][10][11][12][13][14][15], the wheel/rail hardness matching [16,17], the selection and matching of wheel/rail materials [18] and various wheel/rail creep ratios [19]. As a potential and promising technique to extend the railway component service life, laser cladding technology performed on rail steels can improve and enhance their microstructural and mechanical properties [9,10,13], increase the hardness and enhance the wear resistant performances [9,14,15] and affect the residual stress distribution of laser-cladded rails [20].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Wear and Damage Characteristics of Machined Wheel/Rail Materials under Dry Rolling-Sliding Condition

Liu

Quan

Wan

et al. 2020

Metals

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To guarantee the smooth operation of trains, rail grinding and wheel turning are necessary practices to remove surface defects. Surface integrity of machined wheel/rail materials is significant to affect their tribological performance. In this paper, firstly, the wheel specimens were turned by a CNC lathe and the rail specimens were ground by a cylindrical grinding machine with various machining parameters. Then, the wear and damage behavior of the machined wheel/rail discs was systematically investigated via a twin-disc wear testing apparatus under dry rolling-sliding condition. The experimental results show that the surface hardness of rail discs after machining is slightly higher than that of wheel discs, while the surface roughness and plastic deformation layer of wheel discs are much larger than those of rail discs. The surface hardness increase degree of rail discs and their thickness of plastic deformation layer are greater than those of wheel discs after the rolling-sliding test. The wear loss of wheel discs is much larger than that of rail discs. Surface roughness, hardness and plastic deformation layer of wheel/rail discs after machining exert a comprehensive effect on the wear behavior, and friction pair with appropriate original surface hardness and roughness generates the smallest amount of wear loss.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Wear and Damage Characteristics of Machined Wheel/Rail Materials under Dry Rolling-Sliding Condition

Liu

Quan

Wan

et al. 2020

Metals

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“…The surfaces of many key components are suffering from a permanent damage process under long-term pure rolling or rolling/ sliding contact, which may lead to rolling contact fatigue (RCF) or wear failure [1][2][3][4][5]. Undoubtedly, the RCF would reduce the life and reliability of many useful components, such as gears, rolling bearings, and railways [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Investigation on influence of WC–Ni addition on rolling contact fatigue behavior of plasma sprayed Ni-based alloy coating

Zhang

Wang²,

Xu³

et al. 2015

Tribology International

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“…As a result of fatigue, those cracked zones led to serious spalling of damaged specimens and usually there was visible fatigue cracking in the sub-surface. As the wear became severe at a high contact pressure, the fatigue damage transformed from slight damage to oxidation to spalling and fatigue cracks [ 11 ], where the cracks caused by RCF have their origins beneath the surface and may be attributed to the superposition of the maximum sub-surface shear stress over local defects and damages. The induced high compressive residual stress by the UNSM treatment process in the surface layer may withstand the sub-surface shear stress, resulting in extending the fatigue life of rails.…”

Section: Resultsmentioning

confidence: 99%

“…They found that the bainitic steels exhibited a better wear resistance compared to the existing pearlitic and ferritic-pearlitic steels due to the presence of a typical bainitic morphology. Also, the influence of laser dispersed treatment (LDT) on RCW and RCF behaviors of railway wheel steel was investigated by Zeng et al [ 11 ]. It was found that the LDT effectively improved both the wear resistance and RCF behavior of the railway wheel steel due to the formed fine martensite and retained austenite.…”

Section: Introductionmentioning

confidence: 99%

Wear Enhancement of Wheel-Rail Interaction by Ultrasonic Nanocrystalline Surface Modification Technique

2017

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In this study, an ultrasonic nanocrystalline surface modification (UNSM) technique was applied to normal and heat-treated rails made of 60 kgK steel to enhance the wear resistance of the wheel-rail interaction. The hardness and compressive residual stress values of the untreated and UNSM-treated rails were measured by the Brinell hardness tester and X-ray diffraction technique, respectively. It was found, according to the measurement results, that the hardness was increased by about 20% and 8%, whereas the compressive residual stress was induced by about 52% and 62% for the UNSM-treated normal and heat-treated rails, respectively. The UNSM-treated normal rail showed a slightly higher hardness than the heat-treated rail. The wear resistance of rails with respect to rotating speed and rolling time was assessed using a rolling contact wear (RCW) tester under dry conditions. The RCW test results revealed that the wear of the UNSM-treated rails was enhanced in comparison with those of the untreated rails. Also, the wear amount of the rails was increased with increasing the rotation speed. The UNSM-treated normal rail exhibited the highest wear resistance with respect to the rotation speed. The wear mechanisms of the rails are also discussed based on microscopic images of the worn out surfaces.

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Influence of laser dispersed treatment on rolling contact wear and fatigue behavior of railway wheel steel

Cited by 42 publications

References 27 publications

Experimental Investigation on the Wear and Damage Characteristics of Machined Wheel/Rail Materials under Dry Rolling-Sliding Condition

Experimental Investigation on the Wear and Damage Characteristics of Machined Wheel/Rail Materials under Dry Rolling-Sliding Condition

Investigation on influence of WC–Ni addition on rolling contact fatigue behavior of plasma sprayed Ni-based alloy coating

Wear Enhancement of Wheel-Rail Interaction by Ultrasonic Nanocrystalline Surface Modification Technique

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