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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... aluminum etched with aqueous 0.5% hydrofluoric acid Fig. 11 Light micrographs of specimens of 1215 carbon steel that were salt bath nitrided and mounted in different resins. (a) Epomet thermosetting epoxy resin. (b) Phenolic thermosetting resin. (c) Methyl methacrylate thermoplastic resin. (d...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
.... Specimen etched with nital Fig. 3 Light micrographs of specimens of 1215 carbon steel that were salt bath nitrided and mounted in different resins. (a) Thermosetting epoxy resin. (b) Phenolic thermosetting resin. (c) Methyl methacrylate thermoplastic resin. (d) Electroless nickel plated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... pullout during the polishing process. In some cases, plating over the scale prior to mounting the sample or impregnating the mount with resin after preparation can retain the scale for examination. Additional information is provided in the articles “Practices in Failure Analysis” and “Metallographic...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... Differential scanning calorimetry used to detect glass transitions within amorphous thermoplastic resins. The (I) indicates that the numerical temperature was determined as the inflection point on the curve. Fig. 8 Thermogravimetric analysis thermogram showing the weight-loss profile for a typical...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... are sectioned carefully, mounted in a resin compound, ground, and polished to facilitate metallographic examination. The prepared cross sections are called metallurgical mounts and are prepared using standard metallographic techniques. Mounts are examined in the unetched and etched conditions. In the unetched...
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
... for a phenolic resin-aramid fiber composite ( Ref 29 ) showing partial coverage of the polymer pin by transfer film Traditionally, glassy thermoplastics have not been used as typical tribological materials. This is because they show mechanical instability at the glass-transition temperature. However...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001767
EISBN: 978-1-62708-241-9
...Abstract Abstract Six transformer brackets failed in service, sending a group of three pole-mounted transformers to the ground below. The brackets were made from acrylonitrile-butadiene-styrene (ABS) resin and had been in service for more than 30 years. Remnants of the fractured brackets were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090445
EISBN: 978-1-62708-222-8
... to the ABS resin from the spectrum obtained on the failed part. The spectral subtraction results were consistent with a thermoplastic polyester, such as PET or PBT. However, these two materials cannot be distinguished spectrally, because of similarities in their structures. As such, the melting point...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090442
EISBN: 978-1-62708-218-1
... of parts contained absorption bands characteristic of a thermoplastic polyester, such as PBT or poly(ethylene terephthalate) (PET). Different types of polyester resins cannot be distinguished spectrally, because of the similar nature of their structures. However, subtle but distinct differences were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090451
EISBN: 978-1-62708-218-1
... of the jacket material. The resulting spectrum was consistent with a thermoplastic polyester resin. Such materials, including PET and PBT, cannot be distinguished spectrally, and a melting point determination is usually used to distinguish these materials. The failed jacket material and reference molding resin...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001593
EISBN: 978-1-62708-234-1
... that the body section be made from an unfilled polysulfone resin. Polysulfone is a transparent amorphous engineering thermoplastic, which, by comparison with other resins, is generally considered to be a ductile and tough material. Like many other plastics, however, it is somewhat notch sensitive. As a class...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... (such as phenolics, epoxy, etc.) may have low wear rates and higher strength than those with thermoplastics because a higher ratio of fiber is achievable with a thermoset matrix. Incorporation of fillers also can modify wear resistance of polymers up to the order of four. Solid lubricants mostly reduce wear...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003501
EISBN: 978-1-62708-180-1
...., aluminum, thermoplastic, steel). However, unless the information is needed for evaluation of the configurations, selection of the exact material (e.g., the particular aluminum alloy or thermoplastic resin) may be postponed until the parametric stage. Consultation with materials and manufacturing experts...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... and in thermosetting resins. Polymers are increasingly used in load-bearing structural applications. This article briefly reviews the mechanical behavior and fracture characteristics that discriminate structural polymers from metals. One of the most important differences between polymers and other materials...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
... and polymeric materials are tabulated in many references ( Ref 2 , 3 ). When linear or branched thermoplastic polymers are exposed to large enough quantities of solvents having solubility parameters within approximately ±2 H of that of the polymer, dissolution of the polymer will occur. In smaller quantities...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... Crystalline domains with rigid chains between them and cross-linking chains High-strength and temperature-resistant materials E Rigid-chain domains in a flexible-chain matrix Styrene-butadiene-styrene, triblock polymer Thermoplastic elastomer (a) See Fig. 23 . (b) PE, polyethylene; PP...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... methods for advanced ceramics are shown in italics (solution etching, plasma etching, and thermal etching). In general, phenolic-thermosetting-resin-bonded diamond discs are employed for grinding. The surface damage generated during grinding has to be removed during fine grinding and polishing. Fine...