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Book Chapter

By R. Ahmed
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
... Abstract A major cause of failure in components subjected to rolling or rolling/sliding contacts is contact fatigue. This article focuses on the rolling contact fatigue (RCF) performance and failure modes of overlay coatings such as those deposited by physical vapor deposition, chemical vapor...
Book Chapter

By Y. Wang, M. Hadfield
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
... Abstract Rolling-contact fatigue (RCF) is a surface damage process due to the repeated application of stresses when the surfaces of two bodies roll on each other. This article briefly describes the various surface cracks caused by manufacturing processing faults or blunt impact loads on ceramic...
Book Chapter

By W.A. Glaeser, S.J. Shaffer
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002373
EISBN: 978-1-62708-193-1
... Abstract Contact fatigue is a surface-pitting-type failure commonly found in ball or roller bearings. This article discusses the mechanisms of contact fatigue found in gears, cams, valves, rails, and gear couplings. It discusses the statistical analysis of rolling contact bearing-life tests...
Book Chapter

By R. Scott Hyde
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002401
EISBN: 978-1-62708-193-1
... Abstract The mechanism of contact fatigue can be understood in terms of several sources of stress concentration, or stress raisers, within the macroscopic Hertzian stress field. This article focuses primarily on rolling contact fatigue of hardened bearing steels. It discusses Hertzian shear...
Book Chapter

By Bryan Allison
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
... Abstract Rolling-contact fatigue (RCF) is a common failure mode in components subjected to rolling or rolling-sliding contact. This article provides a basic understanding of RCF and a broad overview of materials and manufacturing techniques commonly used in industry to improve component life...
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Published: 01 January 2002
Fig. 23 Gear-tooth section. Rolling-contact fatigue. Crack origin subsurface. Progression was parallel to surface and inward away from surface. Not etched. 60× More
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Published: 01 January 2002
Fig. 24 Gear-tooth section. Rolling-contact fatigue. Crack origin subsurface. Progression was parallel with surface, inward, and finally to the surface to form a large pit or spall. Not etched. 60× More
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Published: 01 January 2002
Fig. 25 Gear-tooth section. Rolling-contact fatigue distinguished by subsurface shear parallel to surface. Note the undisturbed black oxides at the surface, indicating no surface-material movement. Not etched. 125× More
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Published: 01 January 2002
Fig. 9 Pitting on helical gear teeth caused by contact fatigue. Pitting cracks frequently initiate subsurface. Source: Ref 12 More
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Published: 01 January 2002
Fig. 2 Stress risers initiating rolling-contact fatigue failure More
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Published: 01 January 2002
Fig. 4 Gear-tooth section. Rolling-contact fatigue. Crack origin subsurface. Progression was parallel to surface and inward away from surface. Not etched. 60× More
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Published: 01 January 2002
Fig. 5 Gear-tooth section. Rolling-contact fatigue. Crack origin subsurface. Progression was parallel with surface, inward, and finally to the surface to form a large pit or spall. Not etched. 60× More
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Published: 01 January 2002
Fig. 6 Gear-tooth section. Rolling-contact fatigue distinguished by subsurface shear parallel to surface. Note the undisturbed black oxides at the surface, indicating no surface-material movement. Not etched. 125× More
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Published: 01 January 2002
Fig. 9 Morphology of cracks leading to rolling-contact fatigue failure of PVD (TiN) coatings. (a) Crack parallel to the interface leading to spalled area for hard substrate (60 HRC) TiN coating. (b) Cracks parallel to the coating-substrate interface for hard substrate (60 HRC) TiN coating. (c More
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Published: 01 January 2002
Fig. 10 Rolling-contact fatigue failure modes of thermal spray cermet and ceramic coatings. Source: Ref 84 More
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Published: 01 January 1996
Fig. 7 Shelly rail spall from wheel-rail contact fatigue. Source: Ref 5 More
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Published: 01 January 1996
Fig. 9 Plot of relative contact fatigue life for tapered roller bearings versus steel cleanness for several steel heats produced by various electric-arc furnace steelmaking practices More
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Published: 01 January 1996
Fig. 10 Relations between contact fatigue life, macropitting, and the film parameter (Λ) for EHD lubrication More
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Published: 01 January 1996
Fig. 11 Plot of relative contact fatigue life for tapered roller bearings versus Λ (the ratio between the minimum elastohydrodynamic film thickness and the root-mean-square roughness of the contacting surfaces) More
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Published: 01 January 1996
Fig. 4 Contact fatigue spalling of cam lifter surface. Source: Ref 3 More