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fretting frequency

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Book Chapter

By P.H. Shipway
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006414
EISBN: 978-1-62708-192-4
..., such as fretting duration, slip amplitude, normal load, fretting frequency, contact geometry, type of vibration, and surface finish, as well as the role of environmental conditions. The article reviews the influence of an aqueous environment on the mechanism of fretting. The steps that can be taken to reduce...
Image
Published: 01 January 2002
Fig. 17 Plot of wear versus frequency of fretting vibration More
Image
Published: 15 January 2021
Fig. 22 Plot of wear versus frequency of fretting vibration. Adapted from Ref 24 More
Image
Published: 01 January 2003
Fig. 12 Scanning electron microscope micrographs of titanium surfaces fretted at room temperature after 1000 cycles. (a) Overall view of damage. (b) Closeup of area in box in (a). Tested in air at fretting frequency of 55.8 Hz, amplitude of 70 μm, and normal load of 1.47 N (0.33 lbf). Compare More
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... Abstract This article reviews the general characteristics of fretting wear in mechanical components with an emphasis on steel. It focuses on the effects of physical variables and the environment on fretting wear. The variables include the amplitude of slip, normal load, frequency of vibration...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003631
EISBN: 978-1-62708-182-5
... be a threshold amplitude above which rapid increase in wear occurs ( Ref 10 ). The transition is not well established and probably depends on the geometry of the contact. Frequency When the fretting is measured in volume of material removed per unit sliding distance, there does not appear...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... in electronic control and data analysis imply the use of numerous sensors and therefore connectors right next to the engines (automotive, plane, train, etc.). Enduring high-frequency vibrations as well as cyclical thermal loadings, the pin-clip interface experiences fretting wear damage ( Fig. 5 ). Noble...
Image
Published: 01 January 2002
Fig. 9 Relation between diameter of fretting scar and the number of cycles for a ball on a flat under conditions of total slip. P , 437 N (43.7 kgf); P max , 1.2 GPa (175 ksi); amplitude of movement, 8 μm (320 μin.); frequency, 50 Hz More
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003285
EISBN: 978-1-62708-176-4
... a rapid increase in wear occurs ( Ref 30 ). The transition is not well established and probably depends on the geometry of the contact. Frequency . When fretting is measured in volume of material removed per unit sliding distance, there does not appear to be a frequency effect. Number of Cycles...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003316
EISBN: 978-1-62708-176-4
... is not well established and probably depends on the geometry of the contact. Frequency . When fretting is measured in volume of material removed per unit sliding distance, there does not appear to be a frequency effect. Number of cycles . An incubation period occurs during which fretting wear...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002372
EISBN: 978-1-62708-193-1
... depends on the geometry of the contact. Frequency . When fretting is measured in volume of material removed per unit sliding distance, there does not appear to be a frequency effect. Number of Cycles . An incubation period occurs during which fretting wear is negligible. After the incubation...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... of orthopedic implants, the level of bone healing that takes place after device implantation can also affect the magnitude and frequency of loads experienced by an implanted device. Patient factors and health history can play a role in the propensity of a device to fail in one person compared with another...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006444
EISBN: 978-1-62708-190-0
.... Vibration Sources Most industrial vibrothermography systems use vibration sources originally designed for welding plastics, that is, ultrasonic welders. These are highly tuned, resonant energy converters that can deliver high vibrational power at a predetermined frequency (typically 20, 40, and 60 kHz...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005683
EISBN: 978-1-62708-198-6
... current density determination by Tafel extrapolation, potentiodynamic measurement of the polarization resistance, electrochemical impedance measurement, and potentiostatic deaeration. Tests combining corrosion and mechanical forces, such as fretting corrosion tests, environment-assisted cracking tests...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006428
EISBN: 978-1-62708-192-4
..., frequency of motion under fretting), and relating the same to damage mechanisms in the material system of interest ( Ref 40 ). The models developed would need to address the response of the materials involved under such conditions during running in and steady state. Response of the contacting systems during...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... used in the laboratory portion of the failure investigation are mentioned in the failure examples. The topics covered are creep, localized overheating, thermal-mechanical fatigue, high-cycle fatigue, fretting wear, erosive wear, high-temperature oxidation, hot corrosion, liquid metal embrittlement...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006820
EISBN: 978-1-62708-329-4
... on both sides of the teeth is proof of torsional vibration in the drive system. Every mechanical system has naturally occurring torsional critical shaft frequencies; other sources of torsional vibration include coupling misalignment and machining irregularities. In addition, the use of variable...
Book Chapter

By Peter J. Blau
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003242
EISBN: 978-1-62708-199-3
... or boundaries on the “map.” Examples of the variables used in wear maps for sliding wear are load (or normal force or contact pressure) and velocity and for fretting wear, slip amplitude, and oscillating frequency. Many other combinations are possible, but it should be remembered that some of the variables...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... bearings are designed on the principle of rolling contact rather than sliding contact; frictional effects, although low, are not negligible, and lubrication is essential. The article lists the typical characteristics and causes of several types of failures. It describes failure by wear, failure by fretting...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006354
EISBN: 978-1-62708-192-4
... Abstract This article is concerned with gear tooth failures influenced by friction, lubrication, and wear, and especially those failure modes that occur in wind-turbine components. It provides a detailed discussion on wear (including adhesion, abrasion, polishing, fretting, and electrical...