A systematic methodology to characterise the running-in and steady-state wear processes

Kumar, Rajesh; Prakash, Braham; Sethuramiah, A.

doi:10.1016/s0043-1648(01)00895-x

Cited by 85 publications

(39 citation statements)

References 8 publications

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“…In running-in of sliding contact, some parameters such as: load, sliding velocity, initial surface roughness, lubricant, and temperature have certain effects. Kumar et al (2002) explained that with the increase of load, roughness and temperature will increase the running-in wear rate on the sliding contact. However, based on the literature review, there are less publications discussed the runningin of rolling contact model, especially, dealt with the deterministic contact of rough surface.…”

Section: Running-in Of Rolling Contact Modelmentioning

confidence: 99%

Topographical Change of Engineering Surface due to Running-in of Rolling Contacts

Ismail¹,

Tauviqirrahman²,

Jamari³

et al. 2011

New Tribological Ways

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Section: Running-in Of Rolling Contact Modelmentioning

confidence: 99%

Topographical Change of Engineering Surface due to Running-in of Rolling Contacts

Ismail¹,

Tauviqirrahman²,

Jamari³

et al. 2011

New Tribological Ways

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“…At the same time, it may be difficult to judge correctly whether a steady-state wear regime has actually been attained [1,2]. Owing to the variety of physical, mechanical, and chemical processes that evolve simultaneously in the subsurface layers of contacting solids in friction as well as the complexity to describe them analytically, the underlying mechanisms of the running-in process remain obscure so far and aspects of predicting the running-in period are still under research [3,4]. This implies that the problem of predicting the running-in period represents a challenging scientific and practical concern.…”

mentioning

confidence: 99%

A Macro-scale Approximation for the Running-in Period

Argatov

Fadin

2011

Tribol Lett

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The article presents asymptotic modeling of the running-in wear process with fixed contact zone under a prescribed constant normal load or an imposed contact displacement. The wear contact problem is formulated within the framework of the two-dimensional theory of elasticity in conjunction with Archard's law of wear. The running-in process is considered at the macro-scale level, while the micro-processes associated with roughness changes, tribomaterial evolution, and microstructural alteration in the subsurface layers as a first approximation are neglected. The setting of the steady-state regime for the macro-contact pressure evolution is chosen as the criterion to characterize the completion of running-in. Simple closed-form approximations are derived for the running-in period and running-in sliding distance. The obtained results can be used for estimating the running-in period in wear processes where the evolution of the macro-shape deviations at the contact interface plays a dominant role.

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“…These expressions are developed such that the running-in length, steady-state friction coefficient, and the weight loss are related to the running-in load, running-in speed, and initial surface roughness. Similar to the work of Hamrock [29] and Kumar et al [14], a linear logarithmic equation in the following format is assumed.…”

Section: Discussionmentioning

confidence: 99%

“…The presence of a lubricant may delay the onset and the duration of the running-in due to the lubricant's ability to moderate the severity of the friction and the wear rate [13]. One notable publication is due to the work of Kumar et al [14] who conducted experiments on the running-in process in the lubricated contact of a ball and a disk. Their studies provide useful information on the effect of load, surface roughness, and temperature on the duration of the running-in period as well as the wear rate during the running-in and steady state.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Effect of Operating Conditions on the Running-in Behavior of Lubricated Elliptical Contacts

et al. 2015

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During running-in period, the friction coefficient and roughness profile of contacting elements experience drastic changes as a result of asperities deformation and wear. These transient changes affect the steady-state performance of mechanical elements such as gears, cam followers, and bearings. An experimental study on the effect of running-in operating conditions on the properties of a tribosystem is conducted using a pin-on-disk test rig. Curve-fit relationships are developed based on the experimental data to relate running-in duration, friction coefficient, and running-in weight loss to load, speed, and surface roughness. A model to predict the steady-state friction coefficient in the lubricated contact of pin and disk is developed based on the load-sharing concept.

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A systematic methodology to characterise the running-in and steady-state wear processes

Cited by 85 publications

References 8 publications

Topographical Change of Engineering Surface due to Running-in of Rolling Contacts

Topographical Change of Engineering Surface due to Running-in of Rolling Contacts

A Macro-scale Approximation for the Running-in Period

Experimental Investigation on the Effect of Operating Conditions on the Running-in Behavior of Lubricated Elliptical Contacts

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