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interfacial friction

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003030
EISBN: 978-1-62708-200-6
... deformation. Figure 1 shows a polymer surface in contact with a hard asperity. Two friction dissipation zones are shown. The interfacial shear zone is a very thin layer (about 100 nm) at the surface. Slip may occur at the interface for some polymeric materials, but it more commonly occurs within the...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005417
EISBN: 978-1-62708-196-2
... article describes the behavior of oxide scale on the surface of hot metal undergoing thermomechanical processing. It concludes with information on the effects of process and material parameters on interfacial phenomena. deformation metal-forming microforming surface interactions friction...
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
... thermal reactions ( Ref 26 ). Scuffing is most likely to occur in newly machined surfaces during the running-in period, because there is insufficient operating time to smooth the contacting surfaces ( Ref 31 ). Progressive solid-state welding and increased interfacial friction can lead to stopping the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003064
EISBN: 978-1-62708-200-6
... achieved. The mechanism of load transfer is not well understood, either, but if the interfacial forces are low, no brittle fracture occurs. Because the shear and transverse strengths are very low, one could assume that the loads are transferred across the interfaces primarily by friction. In addition...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009009
EISBN: 978-1-62708-185-6
... flow stress in compression. When a flat, ring-shaped specimen is compressed in the axial direction, the change in dimensions depends on the amount of compression in the thickness direction and the frictional conditions at the platen/ring interfaces. If the interfacial friction were zero, the ring would...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009007
EISBN: 978-1-62708-185-6
... frictional conditions at the diering interfaces. If the interfacial friction was zero, the ring would deform in the same manner as a solid disk, with each element flowing outward radially at a rate proportional to its distance from the center. In the case of small, but finite, interfacial friction, the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003209
EISBN: 978-1-62708-199-3
... Abstract This article describes the mechanism, advantages and disadvantages, fundamentals, capabilities, variations, equipment used, and weldability of metals in solid-state welding processes, including diffusion bonding, explosion welding, friction welding, ultrasonic welding, upset welding...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003043
EISBN: 978-1-62708-200-6
..., including corrosion compatibility, fastener materials and strength, head configurations, importance of clamp-up, interference fit fasteners, lightning strike protection, blind fastening, and sensitivity to hole quality. Types of fusion bonding are presented, namely, thermal welding, friction welding...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004013
EISBN: 978-1-62708-185-6
... analyses indicate that compatible deformation of clad and core is more likely the more similar the mechanical properties of the components. In addition, sound extrusions are promoted by low die angles, low friction at the die/workpiece interface, and high interfacial friction between the components. All of...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005435
EISBN: 978-1-62708-196-2
... and external boundary conditions. On the finest scale denoted, solutes and other fine-scale defects exert an influence on several levels, primarily through interfacial friction. Progress in martensite theory has addressed each of these aspects, with due attention to both hierarchies of space-filling...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... article for this task. The ring compression test is well suited for determining the friction factor needed for calculation of forming load and as an easily performed way of getting a reasonable value for flow stress. Prediction of fracture in bulk deformation processes is characterized with the...
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
...) δ S = δ m ( Q = 0 ) = δ ( Q = 0 ) Finally, by integrating the fretting 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...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
...). The performance of a composite is affected by the choice of individual components, the processing required to produce the composite, interfacial phenomena, and the mechanical behavior of the composite obviously affect the ultimate performance. Property modification in CMCs can be achieved by properly...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001286
EISBN: 978-1-62708-170-2
... semiconductor films to a level greater than that obtainable by diffusion-doping techniques ( Ref 80 ). Recently great progress has been made in the deposition of diamond and diamond-like carbon (DLC) coatings for industrial applications. Natural diamond, with its high hardness, low coefficient of friction...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004007
EISBN: 978-1-62708-185-6
... interfacial areas, as schematically shown in Fig. 7 . Consequently, higher extrusion ratios require larger extrusion pressures to overcome increased work hardening in the billet region because of the larger strains. Higher coefficients of friction and billet yield strengths will cause an increase in...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005675
EISBN: 978-1-62708-198-6
... body), high stiffness, and low friction and wear as articulating surfaces. Their main drawback is their brittle nature and resultant low impact resistance. Thus, a few examples are known where ceramic particles are combined to form composites while retaining properties such as the capability to...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.9781627081757
EISBN: 978-1-62708-175-7
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005438
EISBN: 978-1-62708-196-2
... aforementioned sublevel models, calibration of the critical driving force, ΔG crit , which includes surface energy and frictional work by solute strengthening and dislocation, was established in Ref 5 and 6 , using approximately 120 experimental M s measurements published in the literature. Implementation...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003056
EISBN: 978-1-62708-200-6
... chemical bonding at all interfaces and the development of a favorable microstructure in the interfacial zone. Physical factors deal with the determination of joint strength, which is influenced by the strain and stress patterns that are controlled by the coefficients of thermal expansion (CTE) of the...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.9781627081979
EISBN: 978-1-62708-197-9