1-20 of 28 Search Results for

tribological parameters

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006789
EISBN: 978-1-62708-295-2
...-particle erosion wear surface treatment tribological parameters wear map WHEN THE SURFACES of two bodies are in contact and in relative motion, a progressive damage may start, accompanied by the loss of material from the surfaces. This may lead to the failure or loss of functionality of the whole...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003558
EISBN: 978-1-62708-180-1
..., it is necessary to examine and characterize a number of different parameters, not simply the worn part. A tribosystem consists of all those elements that influence the wear process. The basic elements of a tribosystem are: Contacting materials Geometrical parameters (shape, size, roughness) Relative...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
.... Nevertheless, the performance indicators referred to in Table 2 have also been shown to match that of full-scale bearing tests ( Ref 63 ). It is worth appreciating that this dependency of RCF performance on various tribological design parameters and RCF test methods is not unique to overlay coatings...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
..., wear study is separated as elastomers, thermosets, glassy thermoplastics, and semicrystalline thermoplastics. The article describes the effects of environment and lubricant on the wear failures of polymers. It presents a case study on nylon as a tribological material. The article explains the wear...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001533
EISBN: 978-1-62708-225-9
... of local x-ray spectrum analysis using the JSM 840 scanning electron microscope and the link analyzer. Data on babbit's structure parameters and mechanical and tribological properties Table 1 Data on babbit's structure parameters and mechanical and tribological properties Deformation heat...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... of the contact, the microstructure of the material in the contact region, the microscopic surface contamination, and the surrounding environment ( Ref 16 ). To accommodate all these variables, a parameter K ad (the adhesive wear coefficient), varying between 10 –7 and 10 –2 and being dependent...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
.... Therefore, the tribological behavior of reinforced polymers is an empirical evaluation depending on specific material conditions, operating parameters, and environment. It is also ill advised to compare tribological properties of materials evaluated in different laboratories, configurations, environments...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
..., theories on their life prediction are limited. Rosado et al. ( Ref 153 ) studied the effects of surface roughness, lubrication regime, and so forth on coating life. Given the complex tribological interactions between the coating, substrate, and counterface, a large amount of experimental testing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0006548
EISBN: 978-1-62708-180-1
... Copyright © 2002 ASM International® All rights reserved. www.asminternational.org ISI in-service inspection ISO International Organization for Standardi- zation J joule J fracture resistance JPEG Joint Photographic Expert Group K stress-intensity factor K stress-intensity parameter DK stress-intensity range...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001649
EISBN: 978-1-62708-234-1
... failure of structural members. While aircraft manufacturers have gone to great lengths to characterize the parameters affecting the performance of bolted joints, their practices do not necessarily extend to ongoing service operations. Particularly in the case of older aircraft, the original materials...
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
... to predict the wear volume extension ( Ref 54 ). The usual strategy to quantify the wear rate in tribology consists of comparing the wear volume ( V ) as a function of the Archard loading ( W ) ( Ref 55 ). The Archard loading parameter is defined as the product of the normal force and the total sliding...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003564
EISBN: 978-1-62708-180-1
...). The ring crack initiation load is much smaller than the crushing load and approximately follows two-parameter Weibull distribution, with a shape parameter ranging from 9 to 11. Impact cracking of silicon nitride balls during ball finishing or by subsequent handling is a cause for concern, because a surface...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003560
EISBN: 978-1-62708-180-1
... with abrasive wear. Fretting wear is influenced by contact conditions, environmental conditions, and material properties and behavior. Key parameters in fretting include load, frequency, amplitude of fretting motion, number of fretting cycles, relative humidity, and temperature. Fretting wear rate...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... parameters in fretting include load, frequency, amplitude of fretting motion, number of fretting cycles, relative humidity, and temperature. Fretting wear rate is virtually independent of amplitude up to a critical value. Beyond that, the wear rate increases almost linearly with the amplitude. Fretting also...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001516
EISBN: 978-1-62708-234-1
... micrograph of hard error area of particulate hard disk Substrate Effects It is not generally known that the surface topography of an uncoated substrate plays a very important role in the reliability of a disk. Machining parameters can change from disk to disk causing higher ridges and changing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003565
EISBN: 978-1-62708-180-1
... of the total impact energy expended in interfacial slip and the term (α k /μ) is replaced by a parameter K , and if I is the energy of impact and n the number of impacts, wear volume can be defined as: (Eq 6) W = K I n H where K is now the nondimensional impact wear coefficient...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... by the sliding distance represents the energy dissipated in sliding. If α is defined as the proportion of the total impact energy expended in interfacial slip, and the term (α k /μ) is replaced by a parameter K , then if I is the energy of impact and n the number of impacts, wear volume can be defined...
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
... use of polymers, both simple and reinforced, in addition to ceramics, this is an area where further examples of a somewhat different kind are likely to be encountered. Some research already is being devoted to the topic and is described in the section “Parameters Affecting Fretting” in this article...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... of cycles to failure). The necessary additional information about the influence of the mean stress on the tolerable stress amplitude is expressed by the fatigue diagram. The stress ( S )/time ( t ) cycle is schematically shown in Fig. 1 . The cycle is described by several parameters. The main...