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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0090436
EISBN: 978-1-62708-233-4
... Abstract Molded plastic couplings used in an industrial application exhibited abnormally brittle properties, as compared to previously produced components. The couplings were specified to be molded from a custom-compounded glass-filled nylon 6/12 resin. An inspection of the molding resin used...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090466
EISBN: 978-1-62708-218-1
... of production parts. The mechanical hinges were specified to be injection molded from an impact-modified, 13% glass-fiber-reinforced nylon 6/6 resin. Investigation of samples representing the failed components and the original prototype parts included visual inspection, 118x SEM images, micro-FTIR, DSC analysis...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0090460
EISBN: 978-1-62708-234-1
... injection molded from a 30% glass-fiber and mineral-reinforced nylon 12 resin. Investigation, including visual inspection, 118x SEM images, 9x micrographs, energy-dispersive x-ray spectroscopy, micro-FTIR in the ATR mode, and TGA, supported the conclusion that the filter component failed as a result...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0092102
EISBN: 978-1-62708-234-1
... Abstract A nylon oil-lubricated driving gear showed pitting upon visual inspection. The pitting produced numerous surface microcracks. Further investigation (visual inspection and 37x images) supported the conclusion that failure occurred in association with large-scale fragmentation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090433
EISBN: 978-1-62708-218-1
... representing an older lot, which exhibited satisfactory performance properties, were also available for reference purposes. The clips were specified to be injection molded from an impact-modified grade of nylon 6/6. However, the part drawing did not indicate a specific resin. Investigation included visual...
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Published: 15 May 2022
Fig. 3 Infrared spectra of nylon 11. Composition: nylon 11, polyundecal lactam. Used for plastics of all kinds. Preparation: multiple internal reflection, pressed film; far infrared, film from formic acid solution More
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Published: 01 January 2002
Fig. 14 Wear marks on the surface of a nylon/polyethylene antifriction bearing. The bearing was in contact with a rotating steel shaft. 417×. Source: Ref 53 More
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Published: 01 June 2019
Fig. 1 Wear marks on the surface of a nylon/polyethylene antifriction bearing. The bearing was in contact with a rotating steel shaft. 417×. Source: Ref 1 More
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Published: 15 May 2022
Fig. 4 Infrared spectra of nylon 6/6. Used for plastics of all kinds. Preparation: film from formic acid solution More
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Published: 15 May 2022
Fig. 20 Differential scanning calorimetry (DSC) of nylon gears. MW, molecular weight; T g , glass transition temperature; T m , melt temperature More
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Published: 15 May 2022
Fig. 31 Comparative modulus of nylon 6/6 measured by dynamic mechanical analysis (DMA). Size, 1.3 mm (0.05 in.) thick, 15.5 mm (0.6 in.) wide, 6.5 mm (0.25 in.) long; programmed at 5 °C/min (9 °F/min) More
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Published: 15 May 2022
Fig. 32 Effects of moisture on nylon 6/6 measured by dynamic mechanical analysis (DMA). Size, 3 mm (0.12 in.) thick, 13 mm (0.5 in.) wide, 19 mm (0.75 in.) long; programmed at 5 °C/min (9 °F/min), in nitrogen. RH, relative humidity. Source: Ref 32 More
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Published: 15 May 2022
Fig. 39 Diffraction curves for nylon 6. Source: Ref 42 More
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Published: 15 May 2022
Fig. 28 Thermogravimetric analysis of reinforced nylon; 40 °C/min (70 °F/min) in air More
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Published: 15 May 2022
Fig. 29 Thermogravimetric analysis of reinforced nylon; 80 °C/min (1450 °F/min) in air More
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Published: 15 May 2022
Fig. 20 Tensile stress/strain at 23 °C (73 °F) for nylon 6/6 30% glass fiber. Stress-strain curve represents the nylon 6/6 resin that was used to produce the failing aftermarket automotive components. The identified level of stress inherent to the application is indicated. More
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Published: 15 May 2022
Fig. 1. Tensile strength of unreinforced and 30% glass-filled nylon 66 as a function of moisture absorption and temperature More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
..., wear study is separated as elastomers, thermosets, glassy thermoplastics, and semicrystalline thermoplastics. The article describes the effects of environment and lubricant on the wear failures of polymers. It presents a case study on nylon as a tribological material. The article explains the wear...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006850
EISBN: 978-1-62708-395-9
...," and "semicrystalline thermoplastics." The article also discusses the effects of environment and lubricant on the wear failures of polymers. It presents a case study on considering nylon as a tribological material and failure examples, explaining wear resistance of polyurethane elastomeric coatings and failure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0092101
EISBN: 978-1-62708-234-1
... Abstract An antifriction bearing made from a nylon/ polyethylene blend failed. The bearing came into contact with a steel shaft. Investigation (visual inspection and 417X images) supported the conclusion that movement of the shaft against the bearing caused abrasion due to fine iron oxide...