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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001122
EISBN: 978-1-62708-214-3
...Abstract Abstract A sledge hammer chipped during use. The chip struck a by stander in the eye, leading to its loss. The hammerhead surface was examined visually, nondestructively (magnetic particle method), and stereo microscopically, and a microstructural analysis of a cross section...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0046366
EISBN: 978-1-62708-236-5
... submitted for examination. Analysis (visual inspection, manual testing of the hardness and adherence of the chromium plating, 100x microscopic examination, and hardness testing) supported the conclusions that high localized loads on the cylinder had resulted in chipping of the chromium plating, particles...
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Published: 01 January 2002
Fig. 34 Tooth chipping as a field failure generally shows a pattern. In this case, some object of impact was within the assembled unit. More
Image
Published: 01 January 2002
Fig. 41(a) The flange edge of a roll made from AISI D2 tool steel that chipped off during its initial use. Failure was due to poor carbide distribution and morphology, which embrittled the material. See also Fig. 41(b) . More
Image
Published: 30 August 2021
Fig. 73 Corroded area of the elbow showing chipped black scale, mill manufacturing marks, and corrosion on both sides of the downstream girth weld (DSGW). The corrosion occurred where the flow angle of the fluid changed. More
Image
Published: 30 August 2021
Fig. 41 (a) Flange edge of a roll made from AISI D2 tool steel that chipped off during its initial use. Failure was due to poor carbide distribution and morphology, which embrittled the material. (b) Micrograph showing the poor carbide distribution and morphology in the roll. The grain size, ASTM More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001391
EISBN: 978-1-62708-215-0
...Abstract Abstract Several surface-mount chip resistor assemblies failed during monthly thermal shock testing and in the field. The resistor exhibited a failure mode characterized by a rise in resistance out of tolerance for the system. Representative samples from each step in the manufacturing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001369
EISBN: 978-1-62708-215-0
...Abstract Abstract A crane long-travel worm drive shaft was found to be chipped during unpacking after delivery. Chemical analysis showed that the steel (EN36A with a case depth of 1 mm, or 0.04 inch did not meet specifications. Magnetic particle inspection revealed a crack on the side...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0047347
EISBN: 978-1-62708-234-1
... indicated a heavily deformed surface layer with chip formation at the wear surface. The chemical composition of the liner was found to be Fe-2.74C-0.75Mn-0.55Si-0.51Ni-19.4Cr-1.15M. This alloy is highly resistant to abrasive wear, yet at the same time, prone to chipping because little plastic displacement...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0047570
EISBN: 978-1-62708-221-1
...Abstract Abstract A pipe in a chip conveyor cracked at the toe of an exterior fillet weld connecting a flange to the pipe. The chip conveyor consisted of several spool sections. Each section was made up of a length of low-alloy steel pipe and two flanges, which were welded to each end...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001271
EISBN: 978-1-62708-215-0
...Abstract Abstract A carbon steel ball-peen hammer ejected a chip that struck the user's eye. Failure occurred when two hammers were struck together during an attempt to free a universal joint from an automotive drive shaft. Two samples were cut from the face of the hammer one through...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0046242
EISBN: 978-1-62708-236-5
... in the gear teeth (found at visual inspection) was composed of the same material as the metal in the coupling. Beach marks and evidence of cold work, typical of fatigue failure, were found on the fracture surface. Chips remaining in the analysis cut were difficult to remove, indicating a strong magnetic field...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0065827
EISBN: 978-1-62708-221-1
...Abstract Abstract Failure analysis results were employed to identify a better alloy. Chipper knives used in the field to chip logs failed frequently. The knives were made of alloys with a composition of Fe-0.48C-0.30Mn-0.90Si-8.50Cr-1.35Mo-1.20W-0.30V. The development of tougher alloy steel...
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Published: 01 December 1992
Fig. 1 Overall side view of the hammerhead. Arrow indicates the location of the chip. More
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Published: 01 December 1992
Fig. 3 Macroscopic side view of the hammerhead adjacent to the striking surface, showing a match between the chip (indicated by an arrow) and the head. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0089429
EISBN: 978-1-62708-223-5
.... The drill had shattered suddenly with a bang which caused a chip to be dislodged and cause the injury. A large nonmetallic inclusion parallel to the axis near the center of the drill was revealed in an unetched longitudinal section. Carbide bands in a martensitic matrix were indicated in an etched sample...
Image
Published: 01 December 1992
Fig. 4 Macroscopic oblique view of the side of the hammerhead and the striking surface after sectioning, showing a match between the chip (indicated by an arrow) and the head. More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
... subsequently led to the discovery of overlooked debris in an engine chip detector, and thus resulted in a review of several maintenance practices. aircraft bearings operating overload inadequate maintenance and inspection M50 alloy steel bulk deformation energy dispersive spectrometry chemical...
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Published: 01 January 2002
Fig. 10 Sliding bearings damaged by abrasion by foreign particles. (a) Unetched specimen showing a large foreign particle (arrow) at the interface of a bearing and shaft. 110×. (b) Bearing surface scored by metal chips More
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Published: 30 August 2021
Fig. 8 Sliding bearings damaged by abrasion by foreign particles. (a) Unetched specimen showing a large foreign particle (arrow) at the interface of a bearing and shaft. Original magnification: 110×. (b) Bearing surface scored by metal chips More