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surface roughness

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Published: 01 June 2019
Fig. 5 Right — Surface roughness associated with origin of fatigue crack failure of some type 302 springs. More
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Published: 01 January 2002
Fig. 5 Correction factors for surface roughness ( K s ), type of loading ( K 1 ), and part diameter ( K d ) for fatigue life of steel parts. See text. More
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Published: 01 January 2002
Fig. 31 Changes in surface roughness as a function of the number of fretting cycles for metal-to-metal contact. (a) As received. (b) 10 3 cycle. (c) 5 × 10 4 cycles. (d) 3 × 10 5 cycles More
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Published: 01 June 2019
Fig. 15 Comparative surface roughnesses at different roller feed rates More
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Published: 30 August 2021
Fig. 9 Illustration of surface texture: roughness, waviness, lay, and flaws. Source: Ref 13 . Reprinted from ANSI/ASME B46.1-1985, by permission of The American Society of Mechanical Engineers. All rights reserved More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047830
EISBN: 978-1-62708-235-8
.... Indication of fatigue failure was revealed by visual examination of the fracture surfaces. Rough grooves from hot trimming of the flash were visible on the surface of the cheeks. The outer face of one cheek of the throw on the forging contained shallow surface folds. Slightly decarburized forged surface...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001801
EISBN: 978-1-62708-241-9
... = 16 ASTM F136 Specification (min) 26 125 115 8 Annealed or cold worked Typical Annealed 35 135 125 30 Annealed Summary of rod observations Table 3 Summary of rod observations Rod “A” Rod “B” Surface morphology Rough Smooth Grain diameter Small (3 μm) Fine...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006796
EISBN: 978-1-62708-295-2
... of LDI erosion under the influence of a liquid film and surface roughness and on the prediction of LDI erosion. The fundamentals of LDI and processes involved in initiation of erosion are also discussed. empirical erosion model liquid droplet impingement erosion liquid film prediction model...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
... presents the variables of interest for a rotating shaft and the load-carrying capacity and surface roughness of bearings. Grooves and depressions are often provided in bearing surfaces to supply or feed lubricant to the load-carrying regions. The article explains the effect of contaminants in bearings...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c9001155
EISBN: 978-1-62708-223-5
... and the surface roughness measured more precisely. Arbors Milling cutters 16MnCr5E Fatigue fracture Ductile fracture Introduction The milling machine arbors were inserted with satellite spindles having a maximum speed of 1500 rpm, and broke out between the groove and the flange ( Fig. 1...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001583
EISBN: 978-1-62708-217-4
... verification, accessed overall workmanship, and measured the respective surface roughness of the rods in an effort to identify any discrepancies. Next, mechanical testing was performed, followed by optical and electron microscopy, and chemical analysis. Finally, ARL performed laboratory heat treatments...
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Published: 01 December 2019
Fig. 16 Surface of bent section of Rod “B”; surface is rough, but no apparent cracks More
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Published: 01 January 2002
Fig. 25 Machining flaw as fracture origin in glass. Rough surface is the bottom of a groove cut by a diamond saw. SEM; picture width ∼200 μm. Source: Ref 9 More
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Published: 01 December 1993
Fig. 4 SEM micrograph of rough surface inside a failed thermowell, caused by removal of longitudinal inclusions More
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Published: 01 December 1992
Fig. 6 Fractograph showing the rough machined surface at the top of the small-diameter hole. More
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Published: 30 August 2021
Fig. 19 Rough surface on a Ti-6Al-4V powder-bed-fusion-processed cylinder More
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Published: 30 August 2021
Fig. 18 Eye of hydraulic cylinder with fracture surface exhibiting initial fatigue cracking (flat portion) and ultimate failure surface (rough portion) More
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Published: 01 December 2019
Fig. 7 SEM image of the subject club fracture surface on the club face side showing the surface roughness. Note the low number of voids on this side of the hosel More
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Published: 01 January 2002
loading. There is a faint radial pattern and an increase in surface roughness in the overload region. The critical (overload) crack length is very short in this material. More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003536
EISBN: 978-1-62708-180-1
... measurements by using general and unbiased stereological relationships. Characteristics such as fracture surface roughness ( Ref 21 , 22 ), fracture surface anisotropy ( Ref 4 , 30 ), extent of overlaps ( Ref 4 ), average asperity height ( Ref 6 , 31 ), fraction of fracture path through different...