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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006409
EISBN: 978-1-62708-217-4
... Abstract Pitostatic system connectors were being found cracked on several aircraft. Two of the cracked connectors made of 2024-T351 aluminum alloy were submitted for failure analysis. The connectors had cut pipelike threads that were sealed with Teflon-type tape when installed. Longitudinal...
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Published: 01 June 2019
Fig. 1 Top view (a) of cracked aluminum alloy 2024-T351 pitostatic connectors. Arrows indicate cracks. (b) Cross section of one connector showing elongated grains that were cut to form connector threads. 25× (c) Cross section showing intergranular cracking with multiple branching in one More
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Published: 01 December 2019
Fig. 1 Representative image showing cracking observed in the connectors More
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Published: 01 December 2019
Fig. 6 Image of exemplar connectors after mercurous nitrate testing More
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Published: 01 December 2019
Fig. 7 Image of exemplar connectors after ammonia vapor testing More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001090
EISBN: 978-1-62708-214-3
... Abstract A stainless steel flexible connector failed after a short period of service. Visual examination of the failed part revealed that a fracture had occurred in the thin-walled stainless steel bellows brazed into the flanges at each end. Surface examination by SEM fractography showed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001125
EISBN: 978-1-62708-214-3
... Abstract An 1100 aluminum alloy connector of a high-tension aluminum conductor steel-reinforced (ACSR) transmission cable failed after more than 20 years in service, in a region of consider able industrial pollution. The steel core was spliced with a galvanized 1020 carbon steel sheath. Visual...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001806
EISBN: 978-1-62708-241-9
...Chemical species present on the electrical connectors Table 1 Chemical species present on the electrical connectors Species Mass (μg) Chloride 28 Nitrate 4.3 Nitrite 0.6 Sulfate 48 Fig. 6 Image of exemplar connectors after mercurous nitrate testing...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001102
EISBN: 978-1-62708-214-3
... Abstract Four cadmium-plated ASTM A193 grade B studs from a steam line connector associated with a power turbine failed unexpectedly in a nil-ductility manner. Fracture surfaces were covered with a light-colored, lustrous deposit. Optical microscope, SEM, and EDS analyses were conducted...
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Published: 01 June 2019
Fig. 1 Failed aluminum alloy 6061-T6 connector tube from a water-cooling system. (a) Macrograph of the tube showing blow out that appears to involve the loss of a single large grain. (b) Structure near the neutral axis of the bend. The huge grain at lower left (light area) occupied almost More
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Published: 01 June 2019
Fig. 1 Sand-cast low-alloy steel eye connector from a floating-bridge pontoon that broke under static tensile loading. (a) Schematic illustration of pontoon bridge and enlarged view of eye and clevis connectors showing location of fracture in eye connector. (b) A fracture surface of the eye More
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Published: 01 December 2019
Fig. 2 Exposed fracture surface of a connector housing More
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Published: 01 December 2019
Fig. 3 ( a ) Fracture surface of the threaded end-cap and ( b ) connector housing showing intergranular features More
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Published: 01 January 2002
Fig. 4 Sand-cast low-alloy steel eye connector from a floating-bridge pontoon that broke under static tensile loading. (a) Schematic illustration of pontoon bridge and enlarged view of eye and clevis connectors showing location of fracture in eye connector. (b) A fracture surface of the eye More
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Published: 01 December 1992
Fig. 1 Failed stainless steel flexible connector. More
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Published: 01 December 1992
Fig. 2 Inside view of outer end of connector where the bellows fractured. More
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Published: 01 December 1992
Fig. 1 Schematic of the failed connector. More
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Published: 01 December 1992
Fig. 2 Overall view of the failed connector. More
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Published: 01 December 1992
Fig. 4 Scanning electron micrograph of ductile fracture in the connector. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0089530
EISBN: 978-1-62708-219-8
... Abstract A sand-cast steel eye connector used to link together two 54,430 kg capacity floating-bridge pontoons failed prematurely in service. The pontoons were coupled by upper and lower eye and clevis connectors that were pinned together. The eye connector was found to be cast from low-alloy...