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durability

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001640
EISBN: 978-1-62708-235-8
... Abstract A new supplier for aluminum die castings was being evaluated, and the castings failed to meet the durability test requirements. Specifically, the fatigue life of the castings was low. Initial inspection of the fatigue fracture surfaces revealed large-scale porosity visible to the naked...
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Published: 15 January 2021
Fig. 40 Quantification of coating durability under fretting wear (analysis of a MoS 2 solid lubricant). (a) Coating failure ( N c ) when the substrate is reached (friction discontinuity), with evolution as a function of sliding amplitude (δ S ). (b) Quantification of N c as a function More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... conditions and stresses that effect gear strength and durability. The article provides information on different gear materials, the common types and causes of gear failures, and the procedures employed to analyze them. Finally, it presents a chosen few examples to illustrate a systematic approach...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001604
EISBN: 978-1-62708-234-1
... Abstract Critical heat exchanger components are usually manufactured from durable steels, such as stainless steel, which exhibit good strength and corrosion resistance. Failure of a heat exchanger occurred due to specification of a plain carbon steel that did not survive service in the SO2...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001763
EISBN: 978-1-62708-241-9
... to be the stimulant for crack initiation and propagation at this weak region. The failure analysis thus showed that the premature fatigue fracture of the shaft was caused by abnormal operation. Finally, some suggestions to enhance service durability of the transmission system of ATV are discussed. splined shaft...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001907
EISBN: 978-1-62708-217-4
... visual examination, metallography, chemical analysis, fractography, hardness testing, and stress durability testing. Metallography and hardness testing revealed that the bolts were inadvertently carburized, which was not in conformance with the governing requirements. Additionally, macroetching...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001516
EISBN: 978-1-62708-234-1
... ridge frequencies ( Fig. 10 ). In a coating durability accelerated test the author was able to correlate the relationship of this frequency to disk durability. From the figure one can observe an inverse relationship, i.e. higher frequencies yielding improved durability. The durability numbers...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001379
EISBN: 978-1-62708-215-0
... not independently contribute to premature failure of the bolt. Generally, the bolts from the inventory exhibited higher torque failure values (averaging 546 N m, or 403 ft . lbf) when compared to the bolts from the field (averaging 469 N m, or 346 ft . lbf). Stress Durability Testing To investigate...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001784
EISBN: 978-1-62708-241-9
... unsintered particles low carbon steel longitudinal crack SEM/EDS analysis chemical composition low carbon steel (low carbon steel, general) Introduction Properly heat treated alloy steels can make durable wrench sockets. Materials selection of such a part is well established since the only...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001174
EISBN: 978-1-62708-220-4
... lower because of the lesser wall thickness. This investigation has shown that the unalloyed steel used is not durable under the existing operating conditions. At least the cooler manifolds should therefore be replaced by manifolds made of hydrogen resistant steel 2 . References References 1...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006938
EISBN: 978-1-62708-395-9
... Design Background The product design process is directed at the creation of products demonstrating a specified utility, function, and durability. Through this process, functional components—whose attributes are chosen to achieve a desired performance, either independently or in the context...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001281
EISBN: 978-1-62708-215-0
... results in excessive metal temperatures. The elevated temperatures promote cracking or spalling of the coating because of thermal stresses and lead to hot corrosion of the base metal. The durability of aluminide coatings depends on their adherence. If the coating is damaged or removed, oxides will form...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001525
EISBN: 978-1-62708-220-4
... layer was found to be not extremely durable, it does have the effect of greatly increasing corrosion resistance under the stagnant service conditions to which these tanks are routinely exposed. Selected References Selected References • Freeman S.R. , Analysis and Prevention of Corrosion...
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
... improvement in durability and safety of products, equipment, or structures. Sometimes this analysis will lead to an improvement in economics as well. Understanding goes beyond knowledge of facts; it requires integration of facts into the knowledge base of an individual so that the facts may be transformed...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006866
EISBN: 978-1-62708-395-9
... fungal decomposition microbial degradation plastic degradation plastics weathering PETROLEUM-BASED PLASTICS are, in general, extremely stable and durable; hence, it is widely accepted that plastics degrade very slowly only in nature. The many positive traits of plastics, including long-term...
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
... of what is required to have a real improvement in durability of products, equipment, or structures. Understanding goes beyond knowledge of facts. Understanding requires integration of facts into the knowledge base of an individual so that the facts may be transformed into knowledge and then into product...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006871
EISBN: 978-1-62708-395-9
... ). Fig. 3 Static direct weathering exposure rack; tilted at 45° from the horizontal toward the equator. Courtesy of DSET Laboratories, Phoenix, Arizona There are various factors to consider that affect the durability of the test materials when choosing the detailed specification of direct...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006909
EISBN: 978-1-62708-395-9
... increases with exposure time, can introduce anomalous effects that make it difficult to differentiate the effects of key variables and determining the aging sequence. Rigorous statistical analysis is required to determine the precision (confidence limits) of the durability data. It is virtually...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003551
EISBN: 978-1-62708-180-1
.... Industrial Refractories To assess the corrosion resistance of different types of refractories, a rule of thumb is to consider the temperature limits above which corrosion is considered to be excessive, as established considering the expected durability. From one application to another, this durability...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001759
EISBN: 978-1-62708-241-9
... and technologies. The present societal needs necessitate that metallic materials are ideally suited for applications in heavily stressed components that require high durability. The degree of functionality and component performance are strongly tied to the effectiveness of the processing technology deployed...