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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0091538
EISBN: 978-1-62708-233-4
... to the sea air. About 50% of the contact-finger retainers failed after five to eight months of service aboard ship. Investigation (visual inspection, 250x images etched with equal parts NH4OH and H2O2, emission spectrographic analysis, and stereoscopic views) supported the conclusion that the cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047453
EISBN: 978-1-62708-235-8
... Abstract The origins of the casting are unknown. It is included here as a classic case of intergranular corrosion. The part (apparently a pump outlet) was named the “rubber casting” because of the severity of the intergranular attack. Every grain boundary has been attacked to the extent...
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Published: 01 December 1992
Fig. 3 Opened crack in part 1 (continuous crack from part 1 to part 4, see Fig. 1 ). ∼0.7×. More
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Published: 01 December 1993
Fig. 6 Etched view corresponding to Fig. 4 of a part austenitic and part martensitic matrix in corroded areas. 63× More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001629
EISBN: 978-1-62708-235-8
... Abstract A large number of electropolished copper parts showed evidence of discoloration (tinting) after electropolishing. Because these parts are used in a high-vacuum application, even trace amounts of organic materials would be problematic. Scanning electron microscopy of nondiscolored...
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Published: 01 June 2019
Fig. 2 Pin (5) with longitudinal crack and fatigue fracture in fine threaded part and transverse fracture in coarse thread. 0.3 × More
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Published: 01 June 2019
Fig. 3 Coupling with longitudinal cracks in fine and coarse threaded part. 0.3 × More
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Published: 01 June 2019
Fig. 5 Pin cracks in the fine threaded part, opened up (crack initiation designated by arrows). Pin 5, not cleaned at left, pickled at right. 0.5 × More
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Published: 01 June 2019
Fig. 6 Pin cracks in the fine threaded part, opened up (crack initiation designated by arrows). Pin 3, not cleaned at left, pickled at right, 1 × More
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Published: 01 June 2019
Fig. 9 Fatigue fracture in fine threaded part of pin 1. In area of longitudinal cracks erosion through exuded fluid. 0.5 × More
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Published: 01 June 2019
Fig. 4 SEM fractograph of the fracture surface on a wire sample showing cup part of a typical cup and cone fracture More
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Published: 01 June 2019
Fig. 1 View of part of devastation caused by the explosion More
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Published: 01 June 2019
Fig. 5 Longitudinal section through seam adjacent to part shown in Fig. 3 . Approx. Half size More
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Published: 01 June 2019
Fig. 1(c) Fracture surface near root pass showing corrosion products on part of fracture surface. More
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Published: 01 June 2019
Fig. 6 Structure in the interior part of the pipe wall with increasing distance from the location of corrosion pitting. 200 × More
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Published: 01 June 2019
Fig. 7 Structure in the interior part of the pipe wall with increasing distance from the location of corrosion pitting. 200 × More
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Published: 01 June 2019
Fig. 8 Structure in the interior part of the pipe wall with increasing distance from the location of corrosion pitting. 200 × More
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Published: 01 June 2019
Fig. 8 Corrosion rate distribution of part of beam A1. More
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Published: 01 June 2019
Fig. 1 Views of the as-received new versus the used old automotive part. More
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Published: 01 June 2019
Fig. 2 TGA scans for the automotive part at three ages and for the two control samples. More