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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001385
EISBN: 978-1-62708-215-0
... Abstract Three instances involving the failure of aluminum wiring at the service entrance to single-family homes are discussed. Arcing led to a fire which severely damaged a home in one case. In a second, the failure sequence was initiated by water intrusion into the service entrance electrical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001423
EISBN: 978-1-62708-233-4
... austenitic stainless steels. Examination of the cracks at high magnification revealed them to be of the stress-corrosion type. The welds were of satisfactory quality. Cracking was also visible at these locations, this again being of the stress corrosion type. The method of cylinder construction introduced...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001021
EISBN: 978-1-62708-214-3
... of this program, many tests were performed on specimens representing the spar. Some tests produced cracks at the same location as the cracks in the spar under examination. These samples were therefore examined to obtain details of crack growth. The flight-by-flight test loading sequence was available. A crack...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001086
EISBN: 978-1-62708-214-3
... Abstract Two Z-shape impeller vanes failed. The vane material was 14-hard type 301 stainless steel. The vanes were of two-piece construction, with a longitudinal weld. Analyses indicated that the vanes had not been solution annealed after welding, leaving the heat-affected zone above the welds...
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
... are mostly of ACSR construction. Because electrical conductor (high-purity) aluminum cannot bear its own weight over long spans, one or more layers of aluminum wire strands are assembled around a steel wire cable core. The aluminum bears the electrical load, and the steel the mechanical one. Such cables...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001769
EISBN: 978-1-62708-241-9
... the observation made by previous investigators [ 33 , 34 ], who noticed urease positive in CPB. The 16s rRNA gene sequence of the CPB isolates were blasted against Genbank sequences, and the phylogenic tree was constructed with the closely related genera. Hammes and Verstraete [ 17 ] also noticed that microbial...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001534
EISBN: 978-1-62708-220-4
... MPa and was deemed acceptable. No radiographic examination was carried out on the welded component before the hydrostatic test. 2. Materials of Construction The materials of construction of the pipe and dished end were reported as API 5L grade B and A 234 (WPB) (equivalent to A106 grade B...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001392
EISBN: 978-1-62708-231-0
... of construction, it was considered that the cracking in this particular case was due principally to the inordinately large gap between the components. This would lead to a reduction in the rate of heat transfer from the furnace ring to the water and that portion of the furnace ring immediately adjacent to the air...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001766
EISBN: 978-1-62708-241-9
... individuals representing the construction firm, the power company, and to a limited extent, government investigators, which included a limited metallurgical failure analysis. These investigations uniformly confirmed several key facts with respect to the incident. The failed anchor had been installed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001055
EISBN: 978-1-62708-214-3
...) Normal water hammer: 100 kPa (15 psi) Air release valves: possibly closed due to freezing conditions Pertinent Specifications The water line was constructed of 1830 mm (72 in.) OD × 13 mm (0.500 in.) wall spiral-welded pipe using ASTM A283 grade D steel. Performance of Other Parts in Same...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001477
EISBN: 978-1-62708-229-7
... of the vessel, fortunately did not take place. The occurrence is unique in our experience and as such merits inclusion in this report. History The boiler was designed and constructed for a working pressure of 2060 psi and had been in service for 14 years. It had steamed approximately 82,000 hrs and had...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006833
EISBN: 978-1-62708-329-4
... are constructed respond to their environments in accordance with the properties of their materials and hopefully in ways that designers anticipated. For the most part, there are four broad categories of expected material response that must be anticipated: fracture, deformation, corrosion, and wear. Fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001549
EISBN: 978-1-62708-224-2
... inspection of construction cranes every six months or at every re-erection. The following cases, which have been investigated by the authors, deal briefly with failures of cranes and their components. In all instances, the presence of fatigue cracks at least contributed to the failure. In most instances...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001584
EISBN: 978-1-62708-236-5
... to explosion — Ammonium nitrate decomposition and explosion in neutralizer. Fig. 3 Failure analysis — Deformation sequence of accident sparger. Fig. 4 Plant and process schematic. Fig. 5 Full scale neutralizer tank test with ammonium nitrate. Exponent also established...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001141
EISBN: 978-1-62708-227-3
... prevented detailed examination of the lamellar tears but the sequence of tearing can be followed on the slice bend test microsections. Numerous elongated inclusions as seen in Figs. 2 and 13 , make a steel susceptible to lamellar tearing. The initial decohesion of the inclusion/ metal interface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001430
EISBN: 978-1-62708-236-5
... to heat-affected zone cracking, residual stresses, the lower fatigue strength of the weld deposited metal, and weld defects. Repair welding Shafts (power) Weld defects Fe-0.6C Joining-related failures Fatigue fracture It is true to say that the construction of engineering plant — vessels...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001524
EISBN: 978-1-62708-221-1
..., as well as hardness test results and an evaluation of the microstructure, the following most-likely sequence of events (scenario) leading to the boom collapse was formulated: First, the presence of the bolt hole used to attach the gusset plate to the chord created a stress riser adjacent to the hole...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001111
EISBN: 978-1-62708-214-3
... fracture. There was little or no evidence of microvoid formation and coalescence such as would be expected in good-quality constructional alloy steel at service temperatures down to at least −40°C (−40°F). The flange fractured at 15°C (58°F). A highly significant feature of the brittle, quasicleavage...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006803
EISBN: 978-1-62708-329-4
... by an attacker. Sequences with long periods force the adversary to select alternate attack methods. The period of MT19937 far outlasts the number of seconds until our world ends in fire or ice (or is wiped out by a Vogon construction fleet [ Ref 39 ] for that matter).” Latin Hypercube Sampling Latin...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001705
EISBN: 978-1-62708-234-1
... A series of events has occurred over years, initiating various investigations and recommendations. The objective of this case study is to chronicle the sequence of events, explain their causes, and make recommndations. 2. Background First Test In December 1976 a sample tube was tested and found...