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rolling contact fatigue test

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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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770001
EISBN: 978-1-62708-337-9
... depth on the rolling-contact fatigue limit of gear steels. Tests involved two 4 in. disks driven by a 2 in. roller. Test piece may have been either one of the disks or the roller. Relative radius of curvature, 2/3. SH units = lb/in. of face width divided by the relative radius of curvature. Steel...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630189
EISBN: 978-1-62708-270-9
... system was about 0.007 in., and the metal was case-hardened steel with a surface hardness near 60 HRC. The specimen was a 1-in.-diam roller, tested at a calculated compressive stress of 425,000 psi in pure rolling. Abstract Abstract The wear caused by contact stress fatigue is the result...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250257
EISBN: 978-1-62708-345-4
... revealed a large variation in the contact fatigue strength of similar materials when tested under different conditions of contact geometry, speed, lubrication, temperature, and sliding in combination with rolling. These variations result from a poor understanding of the basic mechanism of contact fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060195
EISBN: 978-1-62708-355-3
... is the most important consideration for rolling-element bearings. Gears, in addition to rolling contact fatigue tests, are tested for resistance to wear, bending fatigue, and impact. Pressure vessels, piping, and tubing are tested for their creep and fracture resistance. An overview of mechanical...
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
... rolling and rolling with sliding conditions, assuming the contacting surfaces remain reasonably separated throughout the working temperature range by adequate lubrication. Whereas Brugger’s fatigue tests ( Ref 23 ) found no merit in having retained austenite in the carburized case, the accompanying...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770199
EISBN: 978-1-62708-337-9
... 4028 Shot peened 62.2 36 1.1 0.044 2265 329 1035 150 (a) Converted from HRA. (b) Distance to 510 HV Fig. 8.25 Relationship between fatigue limit at 10 7 cycles and contact stress for case-hardened 20Kh2N4A test pieces (7.5 mm diam, 1.1 to 1.5 mm case depth). Source: Ref...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300079
EISBN: 978-1-62708-323-2
... T.A. , Tobe S. , Rolling Contacts , Wiley , New York , 2000 10.1002/9781118903001 • Totten G.E. , Ed., Friction, Lubrication, and Wear Technology , Volume 18 , ASM Handbook , ASM International , 2017 , p 103 – 378 10.31399/asm.hb.v18.9781627081924 • Waterhouse...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
..., sliding, and combined effect Fig. 16.9 Crack origin subsurface in a gear tooth section due to rolling-contact fatigue. Progression was parallel to surface and inward away from surface. Not etched. Original magnification: 60× Fig. 16.10 Typical morphology of fatigue spall in rolling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130111
EISBN: 978-1-62708-284-6
.... (b) Particle attached to one of the surfaces. (c) Sharp asperity. (d) Erosion Fig. 26 Fractography showing an H11 tool steel that has suffered abrasive erosion Fig. 27 Schematic representation of contact fatigue under pure rolling between two surfaces Fig. 29 Fretting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250019
EISBN: 978-1-62708-345-4
... roughness μin. T b Bulk temperature °F T b test Bulk temperature of test gears °F T c Contact temperature °F T f Flash temperature °F T f test Maximum flash temperature of test gears °F T s Scuffing temperature °F V Operating pitch line velocity ft...
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 There has always been an aura of mystery regarding why metals, and materials in general, fail in fatigue...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630023
EISBN: 978-1-62708-270-9
... of fatigue origin, is a short distance below the contact surfaces when the members are either stationary or rolling with respect to each other. Note in Fig. 6 that when under heavy pressure, the contact region distorts elastically and tends to flatten both convex members, bulging at the ends of contact...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770171
EISBN: 978-1-62708-337-9
... and provides test data showing how they affect hardness, yield strength, bending and contact fatigue, and fracture toughness. It also addresses potential problems stemming from process-related factors such as the presence of hydrogen and the effects of aging and grinding. In regard to refrigeration...
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: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630169
EISBN: 978-1-62708-270-9
... stationary but in reality has slight movement between the hub and the shaft. Fig. 14 Severe fretting wear of a splined shaft that led to fatigue fracture. This shaft, though it normally rotates, was being tested in reversed bending by clamped collets on the outside diameter. (a) Dark areas in lower...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630211
EISBN: 978-1-62708-270-9
... 17-4PH material are ambient-temperature fractures. Pitting was caused by seawater corrosion. Fig. 9 Fatigue fracture in aluminum alloy 2024-T3 tested first in vacuum (region A) and then in air (region B) (7500×). The arrow at the lower right indicates the direction of crack propagation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
... ) and Budinski ( Ref 2 ). Blau places wear processes into three categories based on the type of motion encountered, that is, sliding, impact, and rolling contact ( Fig. 2 ). Budinski reduces wear processes into four categories, that is, abrasion, erosion, adhesion, and surface fatigue ( Fig. 3 ). Although both...