1-20 of 427 Search Results for

contact stress fatigue

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630189
EISBN: 978-1-62708-270-9
... Abstract The wear caused by contact stress fatigue is the result of a wide variety of mechanical forces and environments. This chapter discusses the characteristics of four types of contact stress fatigue on mating metal surfaces: surface, subsurface, subcase, and cavitation. Features...
Image
Published: 01 December 1999
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 27 More
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
... Abstract This chapter discusses the causes and effects of wear along with prevention methods. It covers abrasive, erosive, erosion-corrosion, grinding, gouging, adhesive, and fretting wear. It also discusses various forms of contact-stress fatigue, including subsurface-origin fatigue, surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... motion). Therefore, some greases, solid-film lubricants (e.g., molybdenum disulfide), and oils are frequently used to reduce or delay fretting. Contact Fatigue Contact fatigue is the cracking and subsequent pitting of surfaces subjected to alternating stresses during rolling contact...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250257
EISBN: 978-1-62708-345-4
... Failure mode Type of failure Fatigue Tooth bending, surface 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 List of contact...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630169
EISBN: 978-1-62708-270-9
... the rather overwhelming subject of wear into the following categories, not all of which are conventional: Chapter 11 Chapter 12 Abrasive wear Erosive wear Grinding wear Gouging wear Adhesive wear Fretting wear Contact stress fatigue Subsurface-origin fatigue...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420085
EISBN: 978-1-62708-452-9
... the classic example of tooth bending fatigue. Following is a guide to the rudiments of classic tooth bending fatigue with a study of photoelastic models. Figure 4-2 shows two mating teeth in contact at or near the pitchline. Note the high concentration of compressive stress at the pitchline, or point...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250293
EISBN: 978-1-62708-345-4
... in material that may lead to premature gear fatigue failure. The topics covered are alignment, gear tooth, surface durability and breakage of gear tooth, life determined by contact stress and bending stress, analysis of gear tooth failure by breakage after pitting, and metallurgical flaws that reduce the life...
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
... of gear. Next, the chapter reviews the four areas of specimen characterization of a test program, 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...
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
... microscopic imperfections to coalesce into larger flaws. It also discusses the factors that contribute to the development and propagation of fatigue cracks, including surface deterioration, volumetric and environmental effects, foreign particles, and stresses generated by rolling contact. References...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770199
EISBN: 978-1-62708-337-9
... challenges, particularly in regard to grinding. bending fatigue carburizing contact fatigue fatigue strength grinding microstructure residual stress roller burnishing shot peening surface hardness The mechanical treatments most commonly applied to case-hardened parts are shot peening...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770135
EISBN: 978-1-62708-337-9
... on core properties including hardenability, microstructure, tensile and yield strength, ductility, toughness, and fatigue resistance. It likewise explains how carbon affects case hardenability, surface hardness, and case toughness and how case depth influences residual stresses and bending and contact...
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: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770001
EISBN: 978-1-62708-337-9
..., in this instance, a design limit of about 1000 MPa ( Ref 3 ). Comparable gear tests have been conducted for case-hardened automotive gears and aerospace gears. From these tests, appropriate allowable stress values (for both bending fatigue and contact fatigue) have been derived that are somewhat less than...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030117
EISBN: 978-1-62708-282-2
... rub against each other and produce fretting at the wire-wire contacts. If the fretting occurs in a zone that is also subject to cyclic fatigue stresses, failure occurs. An example of wire rope fretting fatigue is shown in Fig. 19 Note the lip in the detail micrograph in Fig. 20 . Fig. 14...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... increases. In addition, the decreased billet temperatures cause increased flow stress, which leads to increased interface pressures. This also leads to increased wear. If the die experiences large temperature oscillations due to long contact times and subsequent lubrication/cooling, thermal fatigue wear may...
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
... it. It presents detailed images and data plots showing how retained austenite appears and how it influences hardness, tensile properties, residual stresses, fatigue and fracture behaviors, and wear resistance. alloy composition austenite stabilization bending fatigue carbon content contact fatigue...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250227
EISBN: 978-1-62708-345-4
... produces a wear- and fatigue-resistant surface on gear teeth and is frequently used in applications where gears are not subjected to high shock loads or contact stress above 1340 MPa (195 ksi) for American Gear Manufacturers Association (AGMA) grade 3, and 1190 MPa (172 ksi) for grade 2 materials...
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
..., such as cylinders and balls, are under compressive forces in contact with other surfaces, they develop compressive stresses both parallel and perpendicular to the line of contact in both members, as shown in Fig. 6(a) . The maximum shear stress, the location of fatigue origin, is a short distance below the contact...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630237
EISBN: 978-1-62708-270-9
.... The principal types of elevated-temperature failure mechanisms discussed in this chapter are creep, stress rupture, overheating failure, elevated-temperature fatigue, thermal fatigue, metallurgical instabilities, and environmentally induced failure. The causes, features, and effects of these failures...