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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001700
EISBN: 978-1-62708-229-7
... subject of a failure investigation to determine the cause and location of the leaks. Corrosion products primarily contained copper oxide, as would be expected from a copper tubing. The product also exhibited the presence of a significant amount of iron oxides. Metallographic cross sectioning of the tubes...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001297
EISBN: 978-1-62708-215-0
... and lead wool fibers in contact with the spar cavity surface. The corrosion pit at the origin is also shown. The origin and origin corrosion pit are shown at higher magnification in Fig. 4 . The corrosion product that filled the pits is lighter, due to charging in the scanning electron microscope...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... Abstract This article briefly introduces the concepts of failure analysis, including root-cause analysis (RCA), and the role of failure analysis as a general engineering tool for enhancing product quality and failure prevention. It initially provides definitions of failure on several different...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001302
EISBN: 978-1-62708-215-0
..., especially with respect to the accuracy of the optical pyrometer temperature readout. Also, procedures must be developed such that forging blanks that trigger the over-temperature alarm are reliably and permanently removed from the production line. Crack propagation Forging defects Mechanical...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001298
EISBN: 978-1-62708-215-0
... spar A single corrosion pit, 0.38 mm (0.015 in.) deep, led to a fatigue failure of the spar The failure initiated on the pylon side of the blade. Dimensional analysis of the spar near the failure revealed measurements within engineering drawing tolerances. Though corrosion pitting was present, there...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001551
EISBN: 978-1-62708-233-4
... grinding, operations, causes failures in the sense that product quality doesn't meet established standards — dimensional, surface finish, etc. Vibration can cause serious difficulties just as excess temperature, corrosive gases and liquids, and overload forces create problems. An engineer confronted with...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001117
EISBN: 978-1-62708-214-3
... region approximately 25 mm (1 in.) from the end of the coupling. The source of the embrittlement was determined to be hydrogen charging during tin plating. Changes in the plating process were recommended. Casing (material) Gas wells Petroleum engineering Pipe fittings API 5C P-110 API 5C Q-125...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006798
EISBN: 978-1-62708-295-2
... ASM Materials Engineering Dictionary (J.R. Davis, Editor, ASM International, 1992) or in glossaries in other ASM Handbook volumes. The use of a term (e.g., corrosion fatigue ) may change with time as understanding evolves. The definitions presented here are those used in this Volume and reflect...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001274
EISBN: 978-1-62708-215-0
... Microwaves Paper products Laminated paper (Other, miscellaneous, or unspecified) failure A claim was made that a microwave food tray made of laminated paper was defective and collapsed, spilling hot food on the user. A laminated-paper tray containing a cooked microwaveable...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001308
EISBN: 978-1-62708-215-0
... cracking. Fatigue and environmentally assisted cracking were ruled out based on the operating conditions of the rail and the fractographic analysis of the crack—the cyclic loads on the rail were negligible, the environment benign, and the corrosion products seen on the fracture surface were judged by their...
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
... stainless steel wires in an electrostatic precipitator fractured in an unexpectedly short time. Examination of the wires visually and by using a low-magnification microscope showed that the wire surfaces were relatively clean, containing only superficial corrosion products. The general plane of...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001739
EISBN: 978-1-62708-215-0
... tube resulted from irreversible hydrogen damage. Hydrogen damage may occur where corrosion reactions result in the production of atomic hydrogen. Heavy deposits can act as concentration sites for oxygen and acid forming contaminants. When a low-pH (acidic) condition is present, hydrogen is generated...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006772
EISBN: 978-1-62708-295-2
... Northwestern University Traffic Institute that deals with both the on-scene investigation and the reconstruction of motor vehicle accidents. The Society of Automotive Engineers, Inc. (SAE) publishes numerous papers on all aspects of motor vehicle accident reconstruction. Additionally, SAE regularly hosts...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... preparation (mill scale, coatings, surface finish, etc.), environmental composition (trace contaminants, dissolved gases, etc.), temperature, flow rate, solution concentration, and degree of agitation or aeration. In addition, corrosion product films and other changes in surface composition can also occur in...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001569
EISBN: 978-1-62708-229-7
... areas where potential fatigue problems are likely depends on good engineering, experience, and knowing the characteristics and causes from the identification of the failure mode. The examples given demonstrate typical characteristics and illustrate potential commonalities to further assist in selecting...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001127
EISBN: 978-1-62708-214-3
...-dispersive x-ray spectrum of white residue found in float ball cavities and on extension. Zinc oxide, a white water-insoluble powder, is used in such products as moisture-resistant cosmetic creams to protect skin again sunburn and rashes. The plastic material from which the float-ball sections were...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
... Evaluation and Engineering, Inc., for the image in Fig. 9 ; and Gordon Bain, Product Manager, Engineering and Commercial Microanalysis of Thermo Fisher Scientific, for images displayed in Fig. 2 and 3 . We also thank Ryan Haase of Materials Evaluation and Engineering, Inc. for review and comments on the...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001313
EISBN: 978-1-62708-215-0
... combination of hoop stresses from the internal pressure, residual stresses from manufacturing, and possibly flow-induced stresses. The corrosive agent was ammonia, which was found in the internal deposits in the form of ammonium copper sulfite hydrate, a corrosion product of ammonia and copper in the brass...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001099
EISBN: 978-1-62708-214-3
... assembly as it was heated during compressor operation—furnished an additional tensile load sufficient to fracture the screw head. The EDS analysis identified the white residue as an aluminum salt, probably a product of a corrosion process occurring at the juncture of the unprotected steel cap screw and...
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
... cracks, while methods such as radiography and ultrasound are capable of detecting imperfections within a part. Other methods are more suited for online monitoring, which is a quality-control function in production systems. Also, there are many NDE methods used for condition monitoring of parts in service...