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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048772
EISBN: 978-1-62708-220-4
... the scale. It was recommended that material that is intended for critical applications where failure cannot be tolerated should be non-destructively examined. Inclusions Pressure vessels Trialefin Tube components ASTM A213 grade T11 UNS K11597 Stress-corrosion cracking After 2 years...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001667
EISBN: 978-1-62708-235-8
...Abstract Abstract Nondestructive metallographic examination of materials frequently must be performed on-site when the component in question cannot be moved or destructively examined. Often, it is imperative that specific microstructural information (i.e., material type, heat treatment...
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
... individuals with specialized experience or knowledge on the evidence being examined. Nondestructive Examinations of Evidence Destructive Examination The testing of a hypothesis or theory can be done in a number of ways, including cognitive reasoning, modeling, or physical testing. Cognitive...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003523
EISBN: 978-1-62708-180-1
... of Evidence Accident Reconstruction Interdisciplinary Nature Types of Accident Reconstruction Testing of Evidence in a Laboratory Setting Nondestructive Examinations of Evidence Destructive Examination Generation of Hypotheses: Initial Stages of Reconstructing the Accident Cognitive...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001315
EISBN: 978-1-62708-215-0
.... The experience of the authors has also shown prediction of the lives of these types of bellows to be unreliable. Visual Examination of General Physical Features No specific features could be identified from visual examination of the bellows. Testing Procedure and Results Non-Destructive Evaluation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001709
EISBN: 978-1-62708-229-7
... stroke soot blowers, where blower tube is kept completely outside the boiler during off-time. Close-up view of the external surface of one of several tubes that had cracked is shown in Fig. 2 . Non destructive examinations using both magnetic particles and dye penetrant test methods revealed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001059
EISBN: 978-1-62708-214-3
...) in total length. Specimen Selection Because of the size of the column, which did not permit it to be removed from service or subjected to destructive examination, field metallography and replication were chosen as examination methods. Field metallography was performed using a portable microscope...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001841
EISBN: 978-1-62708-241-9
... Fracture A catheter guide wire fractured during service, breaking within the patient. A non-destructive examination of the fractured wire using SEM was conducted. Evidence preservation issues required that the guide wire fracture surface could not be cleaned prior to the SEM examination. Clear...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001363
EISBN: 978-1-62708-215-0
...Abstract Abstract An accidental overspeed condition during wind tunnel testing resulted in the destruction of a propeller rotor The occurrence was initially attributed to malfunction in the collective pitch control system. All fractured parts in the system were inspected. Highly suspect parts...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001119
EISBN: 978-1-62708-214-3
... spring was installed in a separate heavy truck engine in an application in which spring failure can cause total engine destruction. The springs were composed of chromium-silicon steel, with a hardness ranging from 50 to 54 HRC. Chemical composition and hardness were substantially within specification...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0048257
EISBN: 978-1-62708-217-4
... treating-related failures Following test-stand engine testing, an idler gear for the generator drive of an aircraft engine exhibited evidence of destructive pitting on the gear teeth in the area of the pitchline; as a consequence, the gear was submitted for metallurgical examination. The gear was made...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001718
EISBN: 978-1-62708-220-4
...Abstract Abstract Post-service destructive evaluation was performed on two commercially pure zirconium pump impellers. One impeller failed after short service in an aqueous hydrochloric acid environment. Its exposed surfaces are bright and shiny, covered with pockmarks, and peppered...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001291
EISBN: 978-1-62708-215-0
...Abstract Abstract Examination of several fighter aircraft main landing gear legs revealed unusual cracking in the hard chromium plating that covered the sliding section of the inner strut. The cracking was associated with cracks in the 35 NCD 16 steel beneath the plating. A detailed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001686
EISBN: 978-1-62708-220-4
... analysis include failure mechanism, probable root cause, corrective action, repair and non-destructive examination (NDE) recommendations. The current paper gives results of the metallurgical examination and the root cause failure analysis for the forced circulation vaporizer coil including identification...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001679
EISBN: 978-1-62708-229-7
... and one in 1990. Dye-penetrant testing revealed approximately 12 cracks around the necked portion of each stage ( Figures 2 and 3 ). A full destructive examination of both the 1988 MP and the 1990 MP stages has been conducted. Fig. 2 Dye-Penetrant Test from 1988 MP Fig. 3 Dye-Penetrant...
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
... plates may be called for and it is the usual practice for the item to be finally examined by non-destructive methods and a proof carried out. To the uninitiated on the other hand, welding appears on obviously simple process and the apparent ease with which metal can be deposited has led to many...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001666
EISBN: 978-1-62708-229-7
... with the nondestructive replica techniques as can be obtained by destructive sectioning. Acetate replicas can remove corrosion products from surfaces and from within cracks to permit their analysis and examination. Since the background effects from the surrounding base metal are eliminated these products can...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... from corrosion, including coating degradation, is excessive. Grain-boundary attack and/or pitting by oxidation/hot corrosion is excessive. Foreign object damage is severe. Destructive sampling and testing indicate life exhaustion. Excessive deformation has occurred due to creep, causing...
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
... for evidence of heat or corrosion damage; find crack origin(s) As soon as possible after failure Properly protect and place subject components in a protected area Prevent destruction of evidence As soon as possible after initial inspection Closer inspection of broken part. Selection of test locations...
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
... relations and education, at the least. Failure analysis of a complex or catastrophic failure requires much more. People who perform failure analysis as part of their job function must have an awareness of how their legal obligations are defined. People who perform destructive testing on a component...