Review of Factors That Influence Fretting Wear

2009 ◽  
pp. 165-165-18 ◽  
Author(s):  
RC Bill
Keyword(s):  
Fretting Wear

scholarly journals Effects of segment-structured DLC film on the fretting wear of railway axle journal bearings

2019 ◽  
Vol 6 (1) ◽  
pp. 18-00446-18-00446 ◽  
Author(s):  
Yoshiaki OKAMURA ◽  
Daisuke SUZUKI ◽  
Kazuki IKOMA ◽  
Takafumi NAGATOMO ◽  
Hiroshi UTSUNOMIYA
Keyword(s):  
Journal Bearings ◽  
Fretting Wear ◽  
Dlc Film ◽  
Railway Axle

scholarly journals Fretting Wear Behavior of Three Kinds of Rubbers under Sphere-On-Flat Contact

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2153
Author(s):  
Tengfei Zhang ◽  
Jie Su ◽  
Yuanjie Shu ◽  
Fei Shen ◽  
Liaoliang Ke
Keyword(s):  
Normal Force ◽  
Wear Behavior ◽  
Displacement Amplitude ◽  
Fretting Wear ◽  
Butadiene Rubber ◽  
Force Frequency ◽  
Sealing Performance ◽  
Rubber Surface ◽  
Sealing Materials ◽  
Flat Contact

Rubbers are widely used in various fields as the important sealing materials, such as window seal, door seal, valve, pump seal, etc. The fretting wear behavior of rubbers has an important effect on their sealing performance. This paper presents an experimental study on the fretting wear behavior of rubbers against the steel ball under air conditions (room temperature at 20 ± 2 °C and humidity at 40%). Three kinds of rubbers, including EPDM (ethylene propylene diene monomer), FPM (fluororubber), and NBR (nitrile–butadiene rubber), are considered in experiments. The sphere-on-flat contact pattern is used as the contact model. The influences of the displacement amplitude, normal force, frequency, and rubber hardness on the fretting wear behavior are discussed in detail. White light profiler and scanning electron microscope (SEM) are used to analyze the wear mechanism of the rubber surface. The fretting wear performances of three rubbers are compared by considering the effect of the displacement amplitude, normal force, frequency, and rubber hardness. The results show that NBR has the most stable friction coefficient and the best wear resistance among the three rubbers.

Comparative study on the fretting wear property of 7075 aluminum alloys under lubricated and dry conditions

Wear ◽  
2021 ◽  
pp. 203760
Author(s):  
Po Zhang ◽  
Liangcai Zeng ◽  
Xue Mi ◽  
Yan Lu ◽  
Shiyuan Luo ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Comparative Study ◽  
Fretting Wear ◽  
Wear Property ◽  
Dry Conditions

scholarly journals Influence of relative humidity and low temperature hydrothermal degradation on fretting wear of Y-TZP dental ceramics

Wear ◽  
2019 ◽  
Vol 428-429 ◽  
pp. 1-9 ◽  
Author(s):  
Amparo Borrell ◽  
Lorena Gil ◽  
Alvaro Presenda ◽  
Maria D. Salvador ◽  
Jozef Vleugels ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Low Temperature ◽  
Fretting Wear ◽  
Dental Ceramics ◽  
Hydrothermal Degradation

The fretting wear of electrodeposited contact coatings

1988 ◽  
Vol 66 (1) ◽  
pp. 8-14 ◽  
Author(s):  
J. W. Souter ◽  
W. Staunton
Keyword(s):  
Fretting Wear

Time Domain Simulation of the Vibration of a Steam Generator Tube Subjected to Fluidelastic Forces Induced by Two-Phase Cross-Flow

2013 ◽  
Vol 135 (3) ◽  
Author(s):  
Téguewindé Sawadogo ◽  
Njuki Mureithi
Keyword(s):  
Steam Generator ◽  
Two Phase Flow ◽  
Work Rate ◽  
Fretting Wear ◽  
Phase Flow ◽  
Reference Case ◽  
Two Phase ◽  
Steam Generator Tube ◽  
Wide Range ◽  
Instability Regime

Having previously verified the quasi-steady model under two-phase flow laboratory conditions, the present work investigates the feasibility of practical application of the model to a prototypical steam generator (SG) tube subjected to a nonuniform two-phase flow. The SG tube vibration response and normal work-rate induced by tube-support interaction are computed for a range of flow conditions. Similar computations are performed using the Connors model as a reference case. In the quasi-steady model, the fluid forces are expressed in terms of the quasi-static drag and lift force coefficients and their derivatives. These forces have been measured in two-phase flow over a wide range of void fractions making it possible to model the effect of void fraction variation along the tube span. A full steam generator tube subjected to a nonuniform two-phase flow was considered in the simulations. The nonuniform flow distribution corresponds to that along a prototypical steam-generator tube based on thermal-hydraulic computations. Computation results show significant and important differences between the Connors model and the two-phase flow based quasi-steady model. While both models predict the occurrence of fluidelastic instability, the predicted pre-instability and post instability behavior is very different in the two models. The Connors model underestimates the flow-induced negative damping in the pre-instability regime and vastly overestimates it in the post instability velocity range. As a result the Connors model is found to underestimate the work-rate used in the fretting wear assessment at normal operating velocities, rendering the model potentially nonconservative under these practically important conditions. Above the critical velocity, this model largely overestimates the work-rate. The quasi-steady model on the other hand predicts a more moderately increasing work-rate with the flow velocity. The work-rates predicted by the model are found to be within the range of experimental results, giving further confidence to the predictive ability of the model. Finally, the two-phase flow based quasi-steady model shows that fluidelastic forces may reduce the effective tube damping in the pre-instability regime, leading to higher than expected work-rates at prototypical operating velocities.

Effects of thickness and cycle parameters on fretting wear behavior of CVD diamond coatings on steel substrates

2010 ◽  
Vol 205 (1) ◽  
pp. 158-167 ◽  
Author(s):  
Qiuping Wei ◽  
Z.M. Yu ◽  
Michael N.R. Ashfold ◽  
Z. Chen ◽  
L. Wang ◽  
...  
Keyword(s):  
Wear Behavior ◽  
Cvd Diamond ◽  
Fretting Wear ◽  
Diamond Coatings ◽  
Steel Substrates
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