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rolling-contact fatigue

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250311
EISBN: 978-1-62708-345-4
..., namely dimensional, surface finish texture, metallurgical, and residual stress. The following section presents the tests that simulate gear action, namely the rolling contact fatigue test, the single-tooth fatigue test, the single-tooth single-overload test, and the single-tooth impact test. Finally...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870237
EISBN: 978-1-62708-344-7
... effects, foreign particles, and stresses generated by rolling contact. crack growth crack initiation dislocations fatigue mechanism plasticity rolling contact Introduction Some Early Theories Some Tools for Observation That Have Aided in Understanding Role of Plasticity Surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250257
EISBN: 978-1-62708-345-4
... of gear failure analysis. contact fatigue failure analysis fatigue failure gears macropitting micropitting rolling-contact fatigue scuffing spalling stress rupture subcase fatigue thermal fatigue wear GEARS can fail in many different ways, and except for an increase in noise level...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770001
EISBN: 978-1-62708-337-9
..., hardened, and tempered (Ni-Cr) 1–1.5(0.04–0.06) Gas carburized and hardened (Ni-Cr) 1.5 (0.06) Fig. 5 Plots of shear-fatigue strength (from hardness) against plots of shear stresses, τ yz , in rolling-contact tests. Predicted and actual fatigue limit values are in close agreement...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250039
EISBN: 978-1-62708-345-4
... fatigue fracture gears iron-base alloys magnesium alloys rolling contact fatigue surface-hardening steels through hardening wrought steel GEAR MATERIALS can be broadly classified into two groups: nonmetallic and metallic materials. Nonmetallics are the plastics, both thermoplastic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410499
EISBN: 978-1-62708-265-5
..., carbonitriding, and nitrocarburizing. The discussion on carburizing addresses several interrelated factors, including processing principles, alloying, surface oxidation, residual stresses, bending fatigue, contact fatigue, and fracture. carbonitriding carburizing ferritic nitrocarburizing flame...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300079
EISBN: 978-1-62708-323-2
... • “ Standard Test Determining Synergism between Wear and Corrosion ,” ASTM G119, ASTM International , 2015 • Stolarski T.A. , Tobe S. , Rolling Contacts , Wiley , New York , 2000 10.1002/9781118903001 • Totten G.E. , Ed., Friction, Lubrication, and Wear Technology...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250293
EISBN: 978-1-62708-345-4
... contact (pitting or spalling), rolling contact, thermal fatigue Impact Tooth bending, tooth shear, tooth chipping, case crushing, torsional shear Wear Abrasive, adhesive Stress rupture Internal, external In an analysis of more than 1500 studies, the three most common failure modes, which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220519
EISBN: 978-1-62708-259-4
.... , Fracture Mechanics in Railway Applications , Engin. Fract. Mech. , Vol 72 , 2005 , p 163 – 94 10.1016/j.engfracmech.2003.11.010 8. Shur E.A. , Bychkova N.Y. , and Trushevsky S.M. , Physical Metallurgy Aspects of Rolling Contact Fatigue of Rail Steels , Wear , Vol 258 , 2005...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250001
EISBN: 978-1-62708-345-4
... pitting along the tooth tip due to the same tooth tip interference, and subsurface rolling contact fatigue. The subject of rolling contact fatigue is discussed more fully in Chapters 3, “Ferrous and Nonferrous Alloys” and 13, “Gear Failure Modes and Analysis.” Straight Bevel Gear The straight...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770077
EISBN: 978-1-62708-337-9
... of fatigue cracks in carburized cases of (a) 20 HNMh and (b) 18 HGT steel depending on percentage of retained austenite and on load amplitude. Source: Ref 8 Fig. 4.20 Rolling contact fatigue plots for carburized and hardened 3Ni-Cr steel discs. S H = (lb/in. of face width)/(relative radius...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630189
EISBN: 978-1-62708-270-9
... cavities, or pits, in either of two surfaces that contact each other primarily by rolling and/or sliding action, or—in the case of cavitation pitting fatigue—in a metal surface subjected to extreme pressure in contact with a liquid. The cavities themselves are serious because they frequently act...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350001
EISBN: 978-1-62708-315-7
... fatigue, and rolling-contact fatigue Nitriding Used primarily for steels for improved wear resistance, increased fatigue resistance, and improved corrosion resistance (except stainless steels) Carbonitriding Used primarily for steels for improved wear resistance Ferritic nitrocarburizing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130111
EISBN: 978-1-62708-284-6
... as to morphology and composition Rolling-contact fatigue appears like wear in early stages Multiple intergranular fissures covered with reaction scale Grain faces may show porosity Metallographic inspection, 50 to 1000× (cross section) Grain distortion and flow near fracture Irregular...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
..., duration of exposure Material characterization Rolling Rolling contact fatigue Load (elastic contact stress), rpm of roller(s), test duration, temperature Lubricant/material characterization, surface finish of rollers Rolling with slip Load (elastic contact stress), rpm of roller(s), % slip...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.9781627083157
EISBN: 978-1-62708-315-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... rolling-load contact, then the tendency is for the crack propagation to turn inward ( Fig. 16.9 ). Fig. 16.8 Stress distribution in contacting surfaces due to rolling, sliding, and combined effect Fig. 16.9 Crack origin subsurface in a gear tooth section due to rolling-contact fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770171
EISBN: 978-1-62708-337-9
...; 50KhNi: 0.5% C, 0.6% Mn, 0.6% Cr, 1.2% Ni, <0.3% Cr; ShKh15:1.0% C, 1.5% Cr, <0.3% Ni, <0.25% Cu. (b) Distortions in crystal lattice in α solid solution Contact fatigue life of case-hardened 16CD4 steel Table 7.19 Contact fatigue life of case-hardened 16CD4 steel Additional...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610461
EISBN: 978-1-62708-303-4
... (a) Up, toward top; down, toward root. (b) Negative sliding: rolling and sliding are in opposite directions. (c) Positive sliding: rolling and sliding are in the same direction. Source: Ref 7 Characteristics of contact-stress fatigue Table 2 Characteristics of contact-stress fatigue...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870105
EISBN: 978-1-62708-344-7
... 5.26 ) to demonstrate why rolling contact fatigue appears to be so superior to axial fatigue was very useful. His data required considerable analysis to be useful in this study. The results of this study are shown in Fig. 5.14 for bcc materials. Obviously, there is some scatter, and in some...