Tribological behavior of polymethyl methacrylate against different counter-bodies induced by torsional fretting wear

Cai, Zhenbing; Gao, Shoufei; Zhu, Minhao; Lin, Xiuzhou; Liu, Juan; Yu, Haiyang

doi:10.1016/j.wear.2010.10.063

Cited by 27 publications

(12 citation statements)

References 18 publications

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“…5). A W-shaped wear scar is usually observed in fretting wear, that is, either in linear (reciprocating tangential fretting) or rotational (torsional fretting) models [18,19]. In fretting, the contact center sticks and the outside slides.…”

Section: Discussion On Wear Mechanismsmentioning

confidence: 99%

Comparison of the tribological behavior of steel–steel and Si3N4–steel contacts in lubricants with ZDDP or ionic liquid

Cai

Meyer

et al. 2014

Wear

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This study aims to determine the effects of lubricant anti-wear (AW) additive and base oil viscosity on the tribological behavior of steel-steel and ceramic-steel contacts. Two base oils with the viscosity grades of 15W40 and 0W30 were used. Moreover, two AW additives were compared: a conventional secondary zinc dialkyldithiophosphate (ZDDP) and an oil-miscible phosphonium-phosphate ionic liquid (IL) in 0W30 base oil for both material pairs. Tests were conducted by using reciprocating ball-on-flat sliding at room temperature. The flat material was AISI A2 tool steel, and the ball material was either AISI 52100 bearing steel or silicon nitride. As expected, 0W30 base oil with lower viscosity resulted in a higher wear rate than 15W40 base oil for steel-steel contact. Both ZDDP and IL substantially reduced wear, and the IL-additized 0W30 base oil performed best. For ceramic-steel contact, ZDDP provided moderate wear protection for both ball and flat. By contrast, IL reduced steel flat wear more effectively than ZDDP, but increased ceramic ball wear rate. Cross-sectional transmission electron microscopy examination and X-ray photoelectron spectroscopy chemical analysis were conducted to reveal the thickness, nanostructure, and composition of the tribofilms that were formed by ZDDP and IL on the steel and silicon nitride surfaces.

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Section: Discussion On Wear Mechanismsmentioning

confidence: 99%

Comparison of the tribological behavior of steel–steel and Si3N4–steel contacts in lubricants with ZDDP or ionic liquid

Cai

Meyer

et al. 2014

Wear

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“…The torsional fretting wear test of LZ50 samples and nitriding/DLC samples was conducted on a fretting wear test rig [10]. Test parameters are constant rotary angular velocity x = 0.8°s -1 , torsional angular displacement amplitude varied from h = 0.1°to 5°, test cycles varied from 1 to 10 4 , and a constant normal load F n = 50 N. All tests were performed at 25°C in ambient air (RH = 60 %), and every test was replaced three times.…”

Section: Torsional Fretting Wear Test and Analysis Methodsmentioning

confidence: 99%

“…However, the T-h curves of the DLC presented a parallelogram from the initial stage to the end of test. According to the variation of the T-h curves and the evolution of the damage morphologies [10], i.e., in the mixed regime, the wear zone increased. Furthermore, the sticking zone diminished gradually as a function of the number of cycles.…”

Section: Kinetic Behavior Of Torsional Frettingmentioning

confidence: 99%

“…Torsional fretting is the relative motion induced by the reciprocating torsion in an oscillatory vibratory environment [7]. Torsional fretting is common in aeronautics, rail transport, artificial implant engineering, etc., such as ball sockets in automobiles, wheel-axle fits in trains, and human joints [10][11][12][13]. Therefore, measures to reduce or eliminate torsional fretting damage are necessary.…”

Section: Introductionmentioning

confidence: 99%

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Torsional Fretting Wear Behavior of Duplex DLC Coatings Deposited on Ion Nitriding Treated LZ50 Steel

Cai

Yue

et al. 2015

J Bio Tribo Corros

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Duplex ion nitriding/DLC coatings were prepared on LZ50 steel. Characterizations were detected by scanning electron microscopy, atomic force microscope, Raman spectroscopy, dynamic ultra-micro hardness tester, and profilometer. The torsional fretting wear behaviors of DLC coatings and substrate LZ50 steel against GCr15 steel ball in dry conditions were studied under angular displacement amplitudes within a range of 0.1°-5°, constant normal load of 50 N, and rotational speed of 0.8°s-1. DLC coatings presented dense structure and high hardness. Compared with the substrate, DLC coatings removed the mix fretting regime and shifted the slip regime to low angular displacement amplitudes. The friction torques of DLC coatings were lower than that of the substrates. In the partial slip regime, the damage of DLC coatings was low. In the slip regime, the damage mechanism combined with delamination, abrasive wear, and graphitization. The DLC coatings exhibited good capability for anti-torsional fretting damage.

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“…Z .B. Cai [14][15][16][17][18][19][20] took torsional fretting tests of such materials as LZ50 steel, 7075 aluminum alloy, adopting sphere/flat contact mode.…”

Section: Introductionmentioning

confidence: 99%

Research on torsional fretting wear behaviors and damage mechanisms of stranded-wire helical spring

Wang

Song

et al. 2011

J Mech Sci Technol

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Wear on the local area of steel wires' surface is attributed to torsional fretting on the working process of stranded-wire helical spring. A mathematical model to calculate normal contact force and angular displacement amplitude among the wires is established first when the spring is impacted. With the experimental parameters obtained from the model, the torsional fretting test, which stimulates torsional fretting among the wires in the working process of the spring, is realized successfully on a newly developed fretting tester. Torsional fretting behaviors are strongly dependent upon normal contact force, angular displacement amplitude, and number of cycles. There are three basic types of T-θ curves (short for torque), angular displacement curves during the process of torsional fretting, namely, parallelogram, elliptic, and linear T-θ curves. To analyze the damage mechanisms, distribution maps of oxygen in the wear scar of spring wires under different working conditions are revealed. The damage gets slight in the partial slip region, mainly with the abrasive wear and the slight oxidative wear, whereas the wear mechanisms are mainly the abrasive wear, the oxidative wear, and the delamination, accompanied with obvious plastic deformation in the mixed fretting and slip regions.

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Tribological behavior of polymethyl methacrylate against different counter-bodies induced by torsional fretting wear

Cited by 27 publications

References 18 publications

Comparison of the tribological behavior of steel–steel and Si3N4–steel contacts in lubricants with ZDDP or ionic liquid

Comparison of the tribological behavior of steel–steel and Si3N4–steel contacts in lubricants with ZDDP or ionic liquid

Torsional Fretting Wear Behavior of Duplex DLC Coatings Deposited on Ion Nitriding Treated LZ50 Steel

Research on torsional fretting wear behaviors and damage mechanisms of stranded-wire helical spring

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