Experimental results of the tribology of aluminum measured with a pin-on-disk tribometer: Testing configuration and additive effects

Ahmer, S. M.H.; Jan, L. S.; Siddig, Mohamed A.; Abdullah, Siti Fazlili

doi:10.1007/s40544-016-0109-7

Cited by 20 publications

(12 citation statements)

References 33 publications

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“…However, the real contact width is unknown at the beginning, i.e., 1 a and 2 a are unknown parameters when using Eqs. (14) and (15) to compute the contact pressure distribution.…”

Section: Numerical Methods For Solving the Contact Pressurementioning

confidence: 99%

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Numerical analysis of time-varying wear with elastic deformation in line contact

Zhan

Huang

2018

Friction

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Abstract:Wear is an important factor for failures of mechanical components. Current research on wear is mainly focused on experiments while the numerical simulation of wear is hardly used owing to the complexities of the wear process. Explaining the effect of friction on the wear process is important, as it will lead to a deeper understanding of the evolution of wear. This study proposed a numerical method to expound the wear process in the contact between an elastic cylinder and a half-space simulating the ring-block tester. There are two difficulties during the calculation; one is that the contact shapes vary with time, causing the pressure distribution to change simultaneously and the other is the integral equation for calculating the contact pressure under different worn shapes. In the present study, the wear rate was computed using Archard's law and the wear process was calculated step by step until the specified total sliding distance was achieved. During each step of the calculation, the contact topography was updated. The simulation intuitively reproduced the contact state of change from line to surface contact throughout the wear process. Reasonable agreements on the changes of the wear scar, achieved from experiments and numerical simulations, were obtained.

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“…However, the real contact width is unknown at the beginning, i.e., 1 a and 2 a are unknown parameters when using Eqs. (14) and (15) to compute the contact pressure distribution.…”

Section: Numerical Methods For Solving the Contact Pressurementioning

confidence: 99%

“…Numerical methods have been used by many researchers to study wear. Ahmer et al [2], Hegadekatte et al [3], and Bortoleto et al [4] studied wear evolution during point contact based on the pin-on-disc model. Flodin and Andersson [5,6] simulated the wear evolution of spur and helical gears under dry friction conditions.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of time-varying wear with elastic deformation in line contact

Zhan

Huang

2018

Friction

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“…Chromium (Cr) ≤ 18.00-20.00% Table 1. Specification and composition of stainless steel disk (SUS304) [53][54][55]. Table 3.…”

Section: Experimental Details 21 Tribometer Machinementioning

confidence: 99%

“…Table 3. Mechanical properties of the aluminum pin and steel disc [53][54][55]. to aluminum metal, steel disk, Helix oil, and polytron are taken from the research work of Ahmer et al [53], John [54], and Ahmer et al [55].…”

Section: Experimental Details 21 Tribometer Machinementioning

confidence: 99%

Experimental Results of the Tribology of Aluminum in the Presence of Polytron Additive

Ahmer¹,

Khan²,

Shah³

et al. 2019

Friction, Lubrication and Wear

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Friction is an ever-present obstacle that causes energy loss in mechanical parts. To alleviate this nuisance, we carried out experimental studies on a brand new additive called Polytron to assess its role in the minimization of friction and wear. The wear, the volume wear rate, the wear coefficient, and the coefficient of friction of the aluminum surface were measured at room temperature with pin-on-disk tribometer without and with 10% Polytron in Helix oil. In the base oil Helix, their values were found to be 70 μm, 1.28 × 10 −3 mm 3 / min , 1.27 × 10 −10 m 2 / N , and 0.012, respectively, which with the incorporation of Polytron additive in the Helix oil correspondingly reduced to 20μm , 6.08 × 10 −5 mm 3 / min , 4.22 × 10 −11 m 2 ___ N , and 0.004. The experimental verdict points to an ionic character of the additive in that it impregnates the crystal structure of the metal, thereby prompting a hard surface layer which subsequently curtails wear and friction.

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“…This was because the nanoparticles go in to the friction zone with the flow of lubricant, and then sliding friction changed to rolling friction with a result of the reduction of friction co. efficient [20]. (2) aluminium pin vs. 10% Polytron plus 90% helix oil-on-steel disk (APS) It can be asserted that Polytron is an effective antiwear additive in the Helix base oil and can intrinsically reduce friction and wear by orders of magnitude [21]. P. N. L. Pavani et.al (2013) worked on graphite flakes acts as solid lubricant& when load is applied, these layers slide over another &provide lubrication.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Lubrication on Tribological Properties of Bearing Materials Using Pin on Disc: A Review

Kumar¹

2017

IJRASET

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A bearing is interposed between two surfaces in relative motion to minimize the friction. In generally used bearing materials like steels or its alloys depends on the continuous presence of a very thin -millionths of an inch-film of lubricant. Due to restricted lubricant flow or long run increase excessive temperature etc. These are the several reasons of failure of the bearing and this rate of failure of the bearing can be avoided by proper selection of bearing materials and lubricating system. The materials are processed to achieve desirable properties to maximize bearing performance and life. Wet condition lubricants are oils, which produce an oil film between two mating parts i.e. reduce wear and friction. Dry lubricants are materials which, despite being in a solid phase are able to reduce friction between two surfaces against each other without need a liquid oil medium. Over the years, the author has evaluated an P1n-on-d1sk tribometer will be described and discussed as will experimental methods for evaluating Wet conditions and Dry conditions. When evaluating what solid lubrication and hydrodynamic lubrication should be used for a specific application, the only sure way to determine how well it will perform.

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Experimental results of the tribology of aluminum measured with a pin-on-disk tribometer: Testing configuration and additive effects

Cited by 20 publications

References 33 publications

Numerical analysis of time-varying wear with elastic deformation in line contact

Numerical analysis of time-varying wear with elastic deformation in line contact

Experimental Results of the Tribology of Aluminum in the Presence of Polytron Additive

The Effect of Lubrication on Tribological Properties of Bearing Materials Using Pin on Disc: A Review

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