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rolling contact fatigue test

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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
... provides information on physics and testing of rolling-contact fatigue. Processes commonly used to produce bearings for demanding applications are also covered. coatings Hertzian contact theory rolling-contact fatigue rolling-element bearings surface-initiated fatigue wear ROLLING-CONTACT...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004012
EISBN: 978-1-62708-185-6
.... Converted from Knoop readings. (b) Fatigue test was tension-tension at 415 MPa (60 ksi) using a preload equal to 10% of maximum Heating thread rolled fasteners made of steel above the transformation range during a heat treating process completely relieves the favorable compressive stresses induced...
Book Chapter

By Robert Bolin
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003982
EISBN: 978-1-62708-185-6
... test the results, rings are rolled on CNC ring mills and the actual rolling is recorded on a data logger. Additionally, any imperfections are noted. The outcome is encouraging. Rolling times, volume distributions, and required forces of the simulation track very closely with the actual data plots. More...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004009
EISBN: 978-1-62708-185-6
... simulation steps as displayed by ROLPAS for a test airfoil shape cold rolled from rectangular steel stock To simulate the rolling process, ROLPAS divides the deformation zone into a number of cross sections parallel to the roll axis ( Fig. 7 , 15 ). The simulation is initiated by considering the cross...
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
...-static, finite-life, and infinite-life regimes ( Fig. 3 ). Fig. 3 S - N curve for cruciform metal-active-gas-welded joints (structural steel S355, ASTM A572 grade 5). LCF, low-cycle fatigue; HCF, high-cycle fatigue; P F , probability of failure Failure in S - N testing is typically...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005654
EISBN: 978-1-62708-198-6
... loading modes, cracking mode superposition, and surface area effects. The article describes the fundamentals of CF and SCC, testing methodology, and test findings from laboratory, in vivo, and retrieval studies. cardiovascular surgery corrosion fatigue corrosion fatigue testing dentistry...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... initiation. Source: Ref 12 Fig. 7 Unetched metallographic cross section through gear tooth showing subsurface fatigue crack formed by rolling contact. Original magnification: 132×. Source: Ref 12 Fig. 8 Unetched metallographic cross section through hardened steel roller test specimen...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005405
EISBN: 978-1-62708-196-2
... (HCF) or plastic strain-based criteria for low-cycle fatigue (LCF) have been applied based on transfer of results from tests on relatively small-scale unnotched laboratory specimens to structural components ( Ref 1 ) to estimate crack initiation life. Similarly, test results for crack propagation in...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005658
EISBN: 978-1-62708-198-6
... to treat Nitinol like other materials are certain to encounter problems and make mistakes. A qualitative comparison of Fig. 15 and 16 drives home the point: two fatigue studies, done by the same research group, using the same equipment, material preparation, and test methods, with one conducted...
Book Chapter

By Peter J. Blau
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003242
EISBN: 978-1-62708-199-3
... · M p − 1 , various quantities based on erosion-time curves (see ASTM test method G 32 for description) Cavitation M M · t −1 Rolling Rolling contact fatigue T ind , N f L 10 Rolling with slip t ind , N f … D = length or dimenional change, L 10...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture, and stress...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... Fatigue or quench crack from steel stamp mark Crack initiation at hardness test indentations Failures associated with metalworking, welding, and heat treating operations are discussed in more detail in other articles in this Volume. Example 3 also illustrates the effects of manufacturing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... or wedge-shaped cracks at grain triple points • Reaction scales or internal precipitation • Some cold flow in last stages of failure Contributing factors • Load exceeded the strength of the part • Check for proper alloy and processing by hardness check or destructive testing, chemical analysis...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
...-scanning, and scratch tests. After a discussion on gear scuffing, information on the material-dependent adhesive wear and factors preventing adhesive wear is provided. adhesive wear coefficient of friction galling metal sliding contacts scoring scuffing seizure scratch tests twist compression...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000610
EISBN: 978-1-62708-181-8
... AISI type 304 stainless steel tested at 540 °C (1000 °F). A ductile-to-brittle transition occurred at very slow strain rates. Fig. 627 : Microvoid coalescence (dimpled rupture) on fracture surface of sample tested at strain rate of 1.3 mm/min (0.05 in./min). SEM, 200×. Fig. 628 : Brittle...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... this article is on the various types of static load testing, hardness testing, and impact testing. Other specialized testing, such as wear testing, dynamic (high-strain-rate) testing, elevated-temperature creep/stress rupture, residual stress, fracture mechanics, and fatigue testing, are potentially...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003030
EISBN: 978-1-62708-200-6
... application or to investigate a particular wear process. It describes the wear tests conducted with/without abrasives and explains the concept of PV limit (where P is contact pressure and V is velocity). The article concludes with references and tables of friction and wear test data for polymeric materials...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006471
EISBN: 978-1-62708-190-0
... ultrasonic waves; some examples are shown in Fig. 1 ( Ref 1 , 2 ). Conventional technologies most commonly have used single-element piezoelectric-based transducers that couple energy into a part using a couplant. This couplant can be a grease or gel in contact testing, or a large volume of fluid, commonly...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004010
EISBN: 978-1-62708-185-6
... to characterize the mechanical properties of the disk in the as-roll-formed condition. The ultimate tensile stress (UTS) data for longitudinal and transverse directions are shown in Fig. 18 for tensile tests at 25, 400, 500, 550, and 600 °C (80, 750, 930, 1020, and 1110 °F). The roll formed VT-25u...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... geometry. Fig. 23 Reduction in thickness for onset of edge cracking in cold rolling versus reduction in area in tension test. Source: Ref 25 The geometric relationship between the thickness of the workpiece h and the die contact length b can have a strong influence on the stresses...