Wear of driving versus driven discs in a twin disc rolling-sliding test

Hu, Yue; Wang, W.J.; Watson, Michael; Six, Klaus; Al-Maliki, Hayder; Meierhofer, Alexander; Lewis, Roger

doi:10.1016/j.wear.2022.204528

Cited by 9 publications

(2 citation statements)

References 27 publications

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“…Figure 10(c) presents the worn surfaces of a polybutadiene disc after the twin-disc tests for the commercial lubricant. In this figure, ratcheting is observed on the surface (D), which is evidence of surface fatigue caused by cyclic stresses (Hu et al , 2023). Small detachments are also found, as indicated by the arrow (E).…”

Section: Wear Mechanismsmentioning

confidence: 87%

Laboratory evaluation of a nanostructured lubricating grease for tram runflat tires

Pérez Giraldo,

Vasquez,

Toro

et al. 2024

ILT

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Purpose This paper aims to develop a stable gel-type lubricant emulating commercial conditions. This encompassed rheological and tribological assessments, alongside field trials on the Medellín tram system. Design/methodology/approach The gel-type lubricant with graphite and aluminum powder is synthesized. Rheological tests, viscosity measurements and linear viscoelastic regime assessments are conducted. Subsequently, tribological analyses encompassing four-ball and twin disc methods are executed. Finally, real-world testing is performed on the Medellín tram system. Findings An achieved lubricant met the stipulated criteria, yielding innovative insights into the interaction of graphite and aluminum powder additives under varying tests. Originality/value Novel findings are unveiled regarding the interaction of graphite and aluminum powder additives in tribological, rheological and real-world trials. In addition, the wear behavior of polymers is observed, along with the potential utilization of such additives in tramway systems.

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Section: Wear Mechanismsmentioning

confidence: 87%

Laboratory evaluation of a nanostructured lubricating grease for tram runflat tires

Pérez Giraldo,

Vasquez,

Toro

et al. 2024

ILT

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“…A perda de massa do contra-disco foi maior do que a do disco. Este fenômeno é conhecido e discutido por vários autores [93,118]. Mesmo que o contra-disco seja mais duro que o disco, há uma maior tendência à trinca e perda de massa.…”

Section: Discussionunclassified

Influência da microestrutura antes e depois da soldagem de topo por centelhamento de trilhos ferroviários: uma abordagem de fadiga de contato de rolamento, transformações de fases e simulação por elementos finitos.

Pereira

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Strain‐Induced Martensitic Transformation and the Mechanism of Wear and Rolling Contact Fatigue of AISI 301LN Metastable Austenitic Stainless Steel

Leso,

Mukarati,

Mostert

et al. 2024

steel research int.

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AISI 301LN metastable austenitic stainless steels (MASSs) are known to exhibit high work‐hardening rates attributed to martensite evolution during straining which results in the second‐phase strengthening mechanism. This enhances surface hardness and potentially reduces wear and rolling contact fatigue (RCF). The aim of this study is therefore to evaluate the work hardening, wear, and RCF performance of AISI 301LN metastable austenitic stainless steel as a possible alternative material for rolling and sliding applications by varying the contact conditions such as slip ratio against the standard R350HT rail steel using a twin‐disc simulator. The results show that 301LN MASS has high surface work hardening and increased hardness because of martensitic transformation, while R350HT rail steel has only slightly changed. The formation of a hard martensitic phase is also confirmed by X‐ray diffraction analysis as well as by two other techniques, indicating a secondary hardening effect. Although it shows potential for work hardening, its susceptibility to wear‐related problems may make it less suitable for rolling and sliding applications due to a cracking and spalling mechanism induced by martensite formation. The surface strains required for the observed martensite formation are calculated and found to be very high, approaching 0.4.

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Wear of driving versus driven discs in a twin disc rolling-sliding test

Cited by 9 publications

References 27 publications

Laboratory evaluation of a nanostructured lubricating grease for tram runflat tires

Laboratory evaluation of a nanostructured lubricating grease for tram runflat tires

Influência da microestrutura antes e depois da soldagem de topo por centelhamento de trilhos ferroviários: uma abordagem de fadiga de contato de rolamento, transformações de fases e simulação por elementos finitos.

Strain‐Induced Martensitic Transformation and the Mechanism of Wear and Rolling Contact Fatigue of AISI 301LN Metastable Austenitic Stainless Steel

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