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subcase fatigue

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Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
... propagation in different environments. The article concludes with a discussion on rolling-contact fatigue, macropitting, micropitting, and subcase fatigue. corrosion fatigue crack growth crack initiation damage tolerance criterion fatigue fracture fatigue strength fatigue-crack propagation finite...
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
... Table 2 List of contact fatigue terminology used to describe the different fatigue mechanisms Macroscale Microscale Macropitting Pitting Initial Pitting Destructive Pitting Flaking Spalling Scabbing Shelling Fatigue wear Subcase Fatigue Case crushing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... Abstract Fatigue failures may occur in components subjected to fluctuating (time-dependent) loading as a result of progressive localized permanent damage described by the stages of crack initiation, cyclic crack propagation, and subsequent final fracture after a given number of load...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
... of a carburized spiral gear of AISI 4817 steel, showing fine subcase fatigue cracks in the gear-tooth tips (such as at arrow A) and flanks (such as at arrow B); these cracks are evidence of the first stages of spalling fatigue, which originated near the case-core interface because the load-carrying capacity...
Book Chapter

Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006358
EISBN: 978-1-62708-192-4
..., subsurface origin spalling, subcase fatigue (also known as case-crushing), scuffing , and plastic flow . Spalling is another type of wear mode that occurs in RCW of gear teeth. Spalling occurs sporadically, its frequency and exact location being statistical. The relatively large particles produced...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
..., failure by corrosion, failure by plastic flow, failure by rolling-contact fatigue, and failure by damage. The article discusses the effects of fabrication practices, heat treatment and hardness of bearing components, and lubrication of rolling-element bearings with a few examples. corrosion damage...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006354
EISBN: 978-1-62708-192-4
... to prevent reoccurrence of bending failure would make the situation worse by reducing macropitting and scuffing resistance. Cracking, fracture, bending fatigue, and subcase Hertzian fatigue are unrelated to lubrication and are not discussed further. Although corrosion, cavitation, and erosion are influenced...
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
... are similar; for example, pitting and spalling are often used interchangeably in the European literature ( Fig. 1 ). Littmann ( Ref 17 ) has given an account of the contact fatigue damage classification system, and he identified six modes of fatigue failure—inclusion origin, subcase fatigue, surface origin...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005952
EISBN: 978-1-62708-168-9
.... The article provides information on steels for carburized gears with emphasis on gear design requirements, selection process, selection of carbon content, case and core hardness, microstructure, and toughness and short-cycle fatigue. carburizing case depth gears hardenability hardness heat...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... to the failure examination. durability fatigue gear failures gear strength gears gear-tooth impact stress rupture wear GEARS can fail in many different ways, and except for an increase in noise level and vibration, there is often no indication of difficulty until total failure occurs...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006393
EISBN: 978-1-62708-192-4
... Abstract This article discusses the composition, properties and applications of bearing steels. It focuses on the typical wear modes that rolling-element bearings experience: contact fatigue wear, abrasive wear, adhesive wear, and corrosive wear. The article provides information...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005839
EISBN: 978-1-62708-167-2
..., Parts 1–11 , Heat Treat. Prog. Mag. , Aug 2005 – Sept/Oct 2007 19. Svendsen H. and Hagen S.T. , “Thermo-Mechanical Fatigue Life Estimation of Induction Coils,” International Scientific Colloquium on Modeling of Electromagnetic Processing , Oct 27–29, 2008 (Hannover, Germany...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001834
EISBN: 978-1-62708-181-8
... with illustrations. The article also describes microscopic and macroscopic features of the different fracture mechanisms with illustrations with emphasis on visual and light microscopy examination. The types of fractures considered include ductile fractures, tensile-test fractures, brittle fractures, fatigue...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
..., or corrosion fatigue, a sample of the fluid that has been in contact with the metal, or of any deposits that have formed, will often be required for analysis. In addition to developing a history of the failed part it is also advisable to determine if any abnormal conditions prevailed. Determine also...