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grooves

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Published: 01 June 2019
Fig. 2 SCC initiated at the corrosion grooves in the type 316 stainless steel. Magnification 4× More
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Published: 01 June 2019
Fig. 5 Grooves on the tooth bottom. 2× More
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Published: 01 June 2019
Fig. 3 Turning grooves and fatigue fractures in the outer fillet. 5 × More
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Published: 01 June 2019
Fig. 4 Turning grooves and built-up weld in the outer torus. 5 × More
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Published: 01 December 1993
Fig. 7 Microstructure at the root of one of the reticulated grooves on the interior of the pipe. More
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Published: 01 January 2002
Fig. 40 Incomplete fusion in (a) a single-V-groove weld and (b) a double-V-groove weld. Incomplete penetration in (c) a single-V-groove weld and (d) a double-V-groove weld More
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Published: 30 August 2021
Fig. 5 Groovelike damage parameters. g w , groove width; g l , groove length; g r , groove radius; t mm , minimum measured thickness; t c , minimum thickness away from damage area More
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
... Abstract Milling machine arbors were inserted with satellite spindles having a maximum speed of 1500 rpm, and broke out between the groove and the flange. The appearance of the fracture surface was the same on both arbors. The pronounced scan lines characterized the fractures as fatigue...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091096
EISBN: 978-1-62708-234-1
... Abstract A 4340 steel shaft, the driving member of a large rotor subject to cyclic loading and frequent overloads, broke after three weeks of operation. The driving shaft contained a shear groove at which the shaft should break if a sudden high overload occurred, thus preventing damage...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c9001564
EISBN: 978-1-62708-230-3
... developed cracks on the inside surface coincident with an external support gusset. The cracks initiated at wide corrosion grooves. The early stages were corrosion-assisted fatigue cracks. The cracks initiated at the corrosion grooves and propagated as transgranular SCC with characteristic branching...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048777
EISBN: 978-1-62708-229-7
..., indicative of pre-existing cracks, were revealed by examination of the fracture surface at the drain grooves arc gouged at the nozzle sites. A thin layer of material with a dendritic structure was observed at the groove surface. The dendritic layer was revealed by qualitative microprobe analysis to contain...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001198
EISBN: 978-1-62708-221-1
... Abstract Cast iron bearing caps in tractor engines fractured repeatedly after only short operating periods. The fracture originated in a cast-in groove and ran approximately radially to the shaft axis. The smallest cross section was at the point of fracture. The core structure of the caps...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001441
EISBN: 978-1-62708-220-4
... Abstract Soft-soldered copper pipe joints used in refrigerating plants failed. The solder had not adhered uniformly to the pipe surface. In addition, there were some longitudinal grooves on the pipe surfaces, parts of which were not filled with solder. The unsoldered areas formed cavities...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047986
EISBN: 978-1-62708-217-4
... steel) were both of the single-row deep-groove type with split inner rings and were designed to operate at a maximum temperature of 175 deg C. Overtempering of the rings was indicated by the reduced hardness in comparison to unfailed rings. Severe damage to approximately 20% of the load-bearing surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001436
EISBN: 978-1-62708-235-8
... Abstract A 3 in. diam shaft was found to have suffered excessive wear on one of the journals and was built up by welding. While it was in the lathe prior to turning down the built-up region, a crack was discovered in the root of the oil-seal groove and subsequently the end of the shaft...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001374
EISBN: 978-1-62708-215-0
... and seats. Visual examination revealed severe localized metal loss in the form of deep grooves with smooth and wavy surfaces. Metallographic analysis of the grooved areas revealed uniform metal loss. No evidence of intergranular or selective attack indicating erosion-corrosion was observed, Recommendations...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001846
EISBN: 978-1-62708-241-9
... Abstract The main shaft in a locomotive turbocharger fractured along with an associated bearing sleeve. Visual and fractographic examination revealed that the shaft fractured at a sharp-edged groove between two journals of different cross-sectional area. The dominant failure mechanism was low...
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Published: 01 January 2002
Fig. 8 Comparison of fillet and bevel-groove welds. ω is the leg size of the fillet weld in inches = 3 4 in.; A is the cross-sectional area of the weld in square inches = 1 2 ω 2 ; t is the plate thickness in inches = 1.0 in. (a) Fillet welds. (b) Double-bevel groove More
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Published: 01 January 2002
Fig. 7 4340 steel rotor shaft that failed by torsional fatigue. (a) Shear groove designed to protect gear mechanism from sudden overload. Dimensions are in inches. (b) Star-shaped pattern on a fracture surface of the shaft. (c) Longitudinal and transverse shear cracks on the surface More
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Published: 01 January 2002
Fig. 5 Section through arc-gouged drain groove showing thin layer of dendritic structure containing cracks. Etched with nital. 55× More