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ultrasound testing

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0060154
EISBN: 978-1-62708-234-1
... hot spots, the headers would survive for a reasonable period of time. Ammonia Chemical processing equipment Reformer furnaces Ultrasonic testing ASME SA452-TP316H Creep fracture/stress rupture ( Ref 1 ). A leak was detected in one of the coils in the radiant section of a primary...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006936
EISBN: 978-1-62708-395-9
... by an ultrasonic nondestructive inspection system are: Generating an ultrasonic pulse Coupling the ultrasound to the material under test Passing/scanning the transducer over the surface of the material Receiving the ultrasound after it has interacted with the material Analyzing the received...
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
... Abstract Nondestructive testing (NDT), also known as nondestructive evaluation (NDE), includes various techniques to characterize materials without damage. This article focuses on the typical NDE techniques that may be considered when conducting a failure investigation. The article begins...
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
... tests associated with the validation of a new stent geometry. These stents had been subjected to typical manufacturing processes, including ultrasonic cleaning for several minutes. Scanning electron microscopy (SEM) examination of the fracture surfaces clearly indicated fatigue was the cause...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001820
EISBN: 978-1-62708-241-9
... A216-WCC steel when tested both by ultrasound inspection and metallographic analysis ( Table 3 ). These results are in accordance with published data, which indicate that the resistance of steels to HIC cracking is related to the stability of the carbides, and as such, the addition of carbide...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... optimal areas upon which to focus for sectioning and metallography in order to further investigate the condition of the component. This article provides information on the inspection method available for failure analysis, including standard methods such as visual testing, penetrant testing, and magnetic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001617
EISBN: 978-1-62708-227-3
... separation had occurred in service, small areas of dimpled overload fracture were observed. It was concluded from these observations, and from comparisons of cracks produced in service with cracks produced by laboratory testing under various conditions, that cracking had occurred by fatigue. The primary...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... inspection (MPI), ultrasound testing, eddy current and computed tomography (CT). Neither FPI nor MPI are recommended if scale or surface deposits are present, because the testing fluids used in the procedure would alter the original composition of the deposits. Both FPI and MPI can be performed, if required...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001812
EISBN: 978-1-62708-241-9
..., Cd, Ag, Au Aluminium alloys Hg, Ga, In, Pb, Na Copper alloys Hg, Ga, Bi, Zn, Sn, Pb The LME is certainly one of the more dramatic phenomena in materials science and engineering, in that some normally ductile metals, with a reduction of area approaching 100% when tensile tested in air...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001597
EISBN: 978-1-62708-236-5
... failure analysis is in many cases not enough to determine the root causes of a failure. The stages of a failure analysis as outlined in the Metals Handbook 2 are: Collection of background data and selection of samples Preliminary examination of the failed part Nondestructive testing...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006808
EISBN: 978-1-62708-329-4
... and critical services, which are user or code defined, in which the potential of weld failures represents a great risk, extensive and sophisticated NDE is performed (e.g., automated ultrasound testing such as phase array, time-of-flight diffraction, etc.); for nonsevere services, the amount of NDE is reduced...