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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001609
EISBN: 978-1-62708-229-7
... the conditions of Code Case 2215. 13 Section VIII does not require PWHT for alloy 439 tubing manufactured to SA/A-268, grade XM8, UNS S43035. Section VIII also permits the use of P-No.10H duplex stainless steels, such as 22Cr-5Ni alloy 2205, UNS S31803. Numerous HRSG economizers have seen satisfactory service...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
...) throughout the country is very expensive. An obvious economic need, as well as a regulatory requirement, exists for manufacturers (and importers) to have systems in place for expeditious recall of a faulty product. Once involved in litigation, one of the most powerful defenses that manufacturers...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006754
EISBN: 978-1-62708-295-2
... by the fact that many people define the causes of failure in a rather binary manner: was the part defective or was it abused? Obviously, there are many types of defects, including those that come from a deficient design, poor material, or mistakes in manufacturing. Whether those “defects” exist in a given...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003518
EISBN: 978-1-62708-180-1
... but never causes a problem until someone, due to economic downturn, decides to use item for much longer than the original expected service life. Marketing people are given additional training so that they do not give unreasonable expectations of product performance. (It is recognized that an optimistic...
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
... of conceptual design, and examples of common part type or features are listed in Table 1 for various functions. Some parts may have more than one function, and often parts have special features to enhance manufacturing or reduce material costs. Examples of these are described in Table 2 . For economic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001642
EISBN: 978-1-62708-235-8
...Abstract Abstract A plant had manufactured and heat treated their product in house for years. As time went on, the special steel that they had been using became more expensive, and a switch was made to a more common and less highly alloyed material. However, no change in hardness specifications...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001825
EISBN: 978-1-62708-241-9
...Abstract Abstract A type 304 stainless steel tube that failed in a boiler stack economizer was analyzed to determine the cause. The investigation consisted of visual, SEM/EDS, and metallographic analysis. Several degradation mechanisms appeared to be at work, including pitting corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0059924
EISBN: 978-1-62708-235-8
... was the most economical solution. Billets Nonmetallic inclusions Rings Ultrasonic testing 8822 UNS G88220 Metalworking-related failures The large steel ring shown in Fig. 1 was produced for a nuclear application from a 1.7 in (68 in.) diam billet of 8822 steel. The large billet was first...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... controls on steel manufacture Pressure vessel design parameters Table 2 Pressure vessel design parameters Required design code (a) Penetration and location requirements Basic chamber configuration. (Cylindrical or spherical; flat, spherical, or elliptical end details; etc.) Contents...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
...Abstract Abstract Flow forming technology has emerged as a promising, economical metal forming technology due to its ability to provide high strength, high precision, thin walled tubes with excellent surface finish. This paper presents experimental observations of defects developed during flow...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003504
EISBN: 978-1-62708-180-1
... diagram was presented at a FAA maintenance symposium in 1965. By 1968, the 747 Maintenance Steering Group, or MSG (responsible for creating the initial maintenance program for the new Boeing 747, which was about to enter service, and composed of representatives from the airlines, the aircraft manufacturer...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0089429
EISBN: 978-1-62708-223-5
... manufacturers and were based on years of drill use by a great variety of users. There is no question of potentially severe damage and relatively high probability of exposure. But there are no apparent alternatives that are technically and/or economically feasible. What is your judgment on the validity...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003552
EISBN: 978-1-62708-180-1
... of hydrogen embrittlement. Some prevention strategies for design and manufacturing problem-induced hydrogen embrittlement are also reviewed. References References 1. Chatterjee U.K. , Bose S.K. , and Roy S.K. , Environmental Degradation of Metals , Marcel Deckker , 2001 2...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... or for someone who is contemplating procurement of a cost-effective failure analysis of commodity-grade components suspected of hydrogen embrittlement. Some prevention strategies for design and manufacturing problem-induced hydrogen embrittlement are also provided. References References 1. Chatterjee...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0047846
EISBN: 978-1-62708-218-1
... of the metal in the shaft. The shafts were nitrided, and the portion of the surface covered by the sleeve was lightly buffed after nitriding. No further changes were made in the manufacture of these parts. No failures occurred during several months of operation, and the use of nitrided shafts became...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0091598
EISBN: 978-1-62708-218-1
...). The interior surfaces of all three hoppers had been painted before placement in service, after 7 days of service, and after 60 days of service. All exterior surfaces were covered with a gray epoxy coating of the type used at the prill manufacturing plant. There were no specifications for the interior coatings...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001431
EISBN: 978-1-62708-221-1
.... At the present, however, it is not yet an economical proposition to examine every welded detail by this means. As these examples show — no matter how good the reputation of the manufacturer, and the excellence and vigilance of his inspection and quality control staff — examples of criminal malpractice which...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
.... The economic benefits of these types of methods include the fact that no time is spent milling, drilling, weighing, and dissolving the specimen. As long as a clean flat area is available on the surface of the part, analysis may proceed after a quick grinding operation on a special sanding belt. The need...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001649
EISBN: 978-1-62708-234-1
... unexpected failure of structural members. While aircraft manufacturers have gone to great lengths to characterize the parameters affecting the performance of bolted joints, their practices do not necessarily extend to ongoing service operations. Particularly in the case of older aircraft, the original...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001455
EISBN: 978-1-62708-234-1
... have been published 2 , 3 , 4 , 5 . Gilbert, working at the BNFMRA showed in 1955 that the susceptibility to exfoliation corrosion was influenced by the ageing treatment that the material had received in manufacture. 6 By way of explanation, it should be mentioned that aluminium alloys...