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friction and wear properties

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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
...) Steady-state wear process where the wear and friction phenomena are influenced mainly by the shear and adhesive properties of the transferred film. Reprinted with permission from Ref 1 A distinction within the interfacial wear process may be made based on whether or not the frictional heat...
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
... composites (SFRP and particulate-filled), unidirectional FRP composites, and fabric reinforced composites. Friction and wear performance of the composites, correlation of performance with various materials properties, and studies on wear-of failure mechanisms by scanning electron microscopy are discussed...
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
... on the operating conditions and material properties, is introduced into Eq 1 as a modifier. The wear volume is then described as: (Eq 2) W = K ad ∙ F N ∙ L H The adhesive wear coefficient, K ad , is the principal value for a friction pair describing its wear rate. The physical...
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
... consists of a number of parallel wear furrows, which are characteristic of metal wear. 1 , 2 The presence of large reoriented areas that can in the process of friction form cracks and crumble is remarkable. Individual cracks were observed to be located across the friction furrows of a worn-out surface...
Image
Published: 01 January 2002
Fig. 1 Interfacial wear processes. (a) Initial contact of the two surfaces. (b) Running-in process where the soft polymer molecules are gradually transferred to the hard counterface as third-body. (c) Steady-state wear process where the wear and friction phenomena are influenced mainly More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001783
EISBN: 978-1-62708-241-9
... sheet material . Wear 261 , 68 – 73 ( 2006 ) 10.1016/j.wear.2005.09.023 9. Yong W. , Cao L. , Xue Q. : Friction and wear characteristics of ZDDP in the sliding of steel against aluminum alloy . Tribiol. Int. 30 , 767 – 772 ( 1997 ) 10.1016/S0301-679X(97)00070-4 10...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001530
EISBN: 978-1-62708-225-9
... Content on the Wear Characteristics of a Stir-Cast Al-Pb Alloy,” Wear , 1990 , 140 , pp. 83 – 92 . 12. Tabor D. : “The Frictional Properties of Some White Metal Bearing Alloys: The Role of the Matrix and the Hard Particles,” J Appl. Phys. , 1945 , 16 , pp. 325 – 37 . 13...
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
... loop, the friction energy, E d (J) (i.e., friction work), inputted in the interface can be estimated. Both E d (J) and δ S variables can be considered to quantify the wear rate. Fretting Sliding Condition Most of the research work and industrial feedback emphasize that fretting damage...
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
... between the crack faces. Several attempts have been made to explain the wear mechanisms in brittle materials ( Ref 19 ). In the case of brittle materials, cracks may occur on the surface, due to tension or subsurface cracks parallel to the contact path due to shear. Friction in rolling and sliding...
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
... of impingement angle on erosive wear. Source: Ref 12 Properties of the Wear Material The properties of the wearing material that influence wear behavior are grouped into the following categories: mechanical properties, microstructure effects, and other properties (corrosion resistance, friction...
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
... The properties of the wearing material that influence wear behavior are grouped into the following categories: mechanical properties, microstructure effects, and other properties (corrosion resistance, friction, thermal effects). Because abrasive wear is primarily a mechanical process, particularly...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001831
EISBN: 978-1-62708-241-9
... direct reading spectrometer. SEM/EDS was used to examine the local morphology and composition of fracture and contact surfaces. Chemical and thermal properties of the bearing grease were also examined. The investigation revealed that the failure was caused by wear due to dry friction and impact, both...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001575
EISBN: 978-1-62708-217-4
... and nitrided to a surface hardness in the range of 750 ÷ 950 HV, for high wear resistance properties. Core hardness is maintained in the range of 34 ÷ 44 HRc for good toughness properties. [ref as nr. 170 & 230 in Figure 1 ] Fig. 1 The spacers are produced by forced assembling of a Cu alloy...
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
... of friction ( Fig. 22 ). Fig. 22 Plot of fretting wear versus fiber orientation angle in a composite In experiments involving the fretting of sintered alumina against a wide variety of metallic materials in a crossed-cylinder configuration, no detectable wear was found on the alumina, although...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006806
EISBN: 978-1-62708-329-4
..., but axial grooves are easier to make. Fig. 3 Groove arrangements in sliding bearings Apart from axial, circumferential, and spiral grooves, the surfaces of bearings may be textured to improve wear resistance and reduce energy losses by reducing friction. In recent years, improving or modifying...
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
..., becoming transferred particles that, in the long run, may form a friction layer between the mating surfaces. Alternatively, the fragments may be expelled from the contact region and become loose wear fragments. In general, when the two materials in contact have different hardness properties, the one...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
..., and wear failures. The article provides information on the synthesis and interpretation of results from the investigation. Finally, it presents key guidelines for conducting a failure analysis. chemical analysis corrosion failure corrosion testing data collection failure analysis fracture...
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
.... (a) Erosion damage on a butterfly valve component. (b) Fretting damage on a friction band. (c) Sliding wear on a cam follower The types of activities generally required for the resolutions of wear problems are: Examining and characterizing the tribosystem Characterizing and modeling the wear...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... the wear surfaces. The plastic deformation, shear action, and friction at these contact surfaces increase the temperature of the tool material, which further accelerates the mechanical, physical, and chemical attrition associated with tool wear. Excessively worn cutting tools ( Fig. 1a ) ( Ref 2...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001619
EISBN: 978-1-62708-225-9
... of the splines. SEM examination revealed the splined shaft failed by fretting fatigue. Fretting fatigue Paper machines Shafts (power) 4340 UNS G43400 Fretting wear Fatigue fracture Wood chips can be efficiently turned into fiber for newsprint manufacture by the process of disc refining...