1-20 of 29 Search Results for

masking

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006827
EISBN: 978-1-62708-329-4
... of this is the pad opening configuration. Figure 15 shows the two different soldering pad opening configurations: solder mask defined (SMD) and nonsolder mask defined (NSMD). The SMD pad opening has a higher risk of IMC fracture under high-loading-rate conditions, while the NSMD pad opening has a higher risk...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... component. Interference from other parts of the system such as insulation, paint, wiring, and enclosures all add uncertainty to the RT inspection and may reduce sensitivity. In service, components can develop dents, dings, corrosion and other features that can mask, disturb or reduce the ability...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006421
EISBN: 978-1-62708-217-4
... of the cause of failure initiation in the middle fastener holes was masked by excessive corrosion. It was recommended that future panels be manufactured of 2024 aluminum. ...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c9001413
EISBN: 978-1-62708-223-5
... is indicated in B whereas that of the other is masked, being in the root of C. The arrows marked on the photograph illustrate the mode of propagation. Final fracture occurred in the small area indicated by A. A Longitudinal section through the screw thread on the piston rod is seen in Fig. 3...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001556
EISBN: 978-1-62708-218-1
... eye end (i.e. from the plated side, the inner surface of the eye ends being masked). It was ascertained during investigation that 40 mm. diameter forged piston rods were subjected to plating after carrying out heavy machining on the part without any stress-relieving treatment. Also, time lapses...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0045926
EISBN: 978-1-62708-235-8
... that the end product contained nickel-phosphorus sandwiched between copper and epoxy, with a chromate conversion layer on the epoxy side of the nickel-phosphorus. Peel test samples were prepared by masking and etching the copper ( Fig. 1 ). Testing revealed abnormally low adhesion strength for the bad batch...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001906
EISBN: 978-1-62708-217-4
... detected. The handling of the lugs subsequent to inspection was also improved in an effort to reduce the masking of defective parts. Thousands of lugs were scrapped as a result of this re-inspection, and the contracts office invoked the warranty clause. ...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001472
EISBN: 978-1-62708-221-1
... beam and possibly serve to mask those from any crack that may have been present. In order to ascertain the minimum depth of cracking that it would be possible to detect in the presence of the influence of the hole a series of tests was carried out on the other, intact end of the shaft. The response...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001613
EISBN: 978-1-62708-235-8
...°) during room temperature testing resulted in cracking of the screws. The tappet adjusting screws failed by hydrogen embrittlement. This conclusion was confirmed when a baking treatment at around 150–200 °C after plating, in conjunction with masking the threaded portion of the screw to reduce...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0060144
EISBN: 978-1-62708-234-1
... radiographed under similar conditions but with catalyst in the tube is shown in Fig. 1(c) . Fissures are visible, but it is apparent that the catalyst reduced the sensitivity by masking the smaller fissures. Liquid penetrant inspection and macroexamination of the specimen tube revealed the gross fissuring...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001370
EISBN: 978-1-62708-215-0
..., and flat. Some portion of the fracture surface was found to have been rubbed. A cavity near the center was observed ( Fig. 3 ). The presence of corrosion deposits masked the macroscopic fracture details. After cleaning with 50% orthophosphoric acid, more macroscopic details were observed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001075
EISBN: 978-1-62708-214-3
.... The geometry of the beach marks pointed to the origin of the fatigue fracture. The fatigue fracture surface is shown at high magnification in Fig. 4 . No fatigue striations were observed, but they may have been masked by corrosion products formed on the fracture surface. Figure 5 shows the final overload...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001341
EISBN: 978-1-62708-215-0
... mode with corrosion product. Fig. 5 SEM fractographs of the inside radius of the bend. (a) A distinct intergranular fracture surface for the entire tube thickness at the inside radius of the bend. (b) The oxide-type corrosion product masking the intergranular facets of the fracture...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001084
EISBN: 978-1-62708-214-3
... indicated by the arrow in (a).The dendrites are slightly masked by a corrosion product. Four metallographic samples, MET 1 to 4, were sectioned from various areas near the fracture surface and through the casting defects, as shown in Fig. 1(c) and (d) . MET 1 and MET 2 were prepared by grinding...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... of the implications of crack closure, because it also affects the sensitivity of certain types of NDT. In the first instance, shot peening, glass beading, or some types of machining or grinding just before performing penetrant inspection could mask a discontinuity by smearing metal across the flaw at the surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001706
EISBN: 978-1-62708-217-4
... coverage. The appearance and size of the pit that caused the latest MLG failure were similar to those of the pit that caused the previous failure in 1988 ( Figure 20 ). Apparently, the manganese phosphate primer and paint masked the pit. Furthermore, it appears that the pit had been missed during...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001661
EISBN: 978-1-62708-229-7
... preparation by metal removal may be necessary in areas where surface irregularities may mask discontinuous indications. Prior to the examination, areas plus the surface within at least one inch of the examination areas shall be dry and free of dirt, grease, lint, scale, welding flux, spatter, oil, or other...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... of the investigation includes proper sequence of the selected tests; for example, a wrong sequence can introduce artifacts or mask and even destroy important evidence. Even a well-designed examination can fail of its purpose, unless it is conducted carefully and systematically. When the series of tests has...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001814
EISBN: 978-1-62708-241-9
... an abnormal temperature, but this probe was located in the outlet downstream of a water spray, which may have masked any change in operating condition. The data from the other probe showed that the quench chamber temperature had exceeded its normal operating temperature of about 230 °C during the day...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... fracture surface along elongated grains in heavily worked material, such as severely extruded alloys, or along the parting lines of some forgings ( Fig. 2b ). Grain facets may also be masked, such as by oxides, as is common of IG creep fracture surfaces. Fig. 1 SEM images of (a) IG fracture in ion...