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exterior salt pitting

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001832
EISBN: 978-1-62708-241-9
... by malfunctions in the cooling water system. These events and their possible impacts are summarized in Table 1 . The various failures in the purge ventilation system have an effect on the transport of corrosive salts through the system into the vent pipe, possibly contributing to its degradation. Summary...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001145
EISBN: 978-1-62708-217-4
...-corrosion cracking Pitting corrosion Introduction Overview of Failure Modes Factors Contributing to Failure Discussion Acknowledgment References References 1. Coleman W. R. , Block R. J. , Daniels R. D. , “Corrosion Problems in Aircraft Components-Case Studies...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001639
EISBN: 978-1-62708-229-7
... of previously identified leak sites, thickness mapping, and crack detection scans on specified areas of the tank. No indications of reportable wall loss or pitting were detected. All thickness readings were above minimum design tank-wall thickness, although several small indications of thinning were noted...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... are galvanic corrosion, uniform corrosion, pitting, crevice corrosion, intergranular corrosion, selective leaching, and velocity-affected corrosion. In particular, mechanisms of corrosive attack for specific forms of corrosion, as well as evaluation and factors contributing to these forms, are described...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001770
EISBN: 978-1-62708-241-9
... (discontinuous) morphology of crack advancement is also evident in Fig. 8(d) with transgranular fracture. On-site visual examination shows that the tank was installed near seashore where moist chloride containing environment is basically always present on the tank exterior. Moreover, salt residues were...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... of the protective oxide film. Galvanic effects are not as severe under these conditions. Corrosion of aluminum in contact with more cathodic metals is much less severe in solutions of most nonhalide salts, in which aluminum alone normally is not polarized to its pitting potential. In many environments, aluminum...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... considered to be valid. Three additional characteristics have been added: Cathodic protection has been successful, in some cases, in preventing crack initiation and in stopping propagation of cracking that has already progressed, to a limited extent. Addition of soluble salts containing certain...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... with the exterior B 121 (a) Exposed cavities of various sizes, isolated or grouped, usually at or near the surface, with shiny walls Surface or subsurface blowholes B 122 (a) Exposed cavities, in re-entrant angles of the casting, often extending deeply within Corner blowholes, draws B 123...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... the surface is exposed to the environment. Figure 9 ( Ref 16 ) illustrates common crack-initiation sites for SCC. Stress-corrosion cracking can initiate at locations subjected to pitting corrosion (if the pits are sufficiently elongated), crevice corrosion, intergranular corrosion, or dealloying...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
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
... be removed from zirconium and its alloys by vacuum annealing. Uranium, uranium alloys, and thorium are susceptible to hydrogen embrittlement. Hydrides in thorium have been identified as ThH 2 and Th 4 H 15 . The hydride in uranium is UH 3 . Uranium absorbs hydrogen from three sources: fused salt bath...
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
... zirconium and its alloys by vacuum annealing. Uranium, uranium alloys, and thorium are susceptible to hydrogen embrittlement. Hydrides in thorium have been identified as ThH 2 and Th 4 H 15 . The hydride in uranium is UH 3 . Uranium absorbs hydrogen from three sources: fused salt bath annealing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... marks, radial marks, and beach marks. By a study of these features, crack progress can be traced back to the point of origin, and then it can be ascertained whether the crack was initiated by an inclusion, a porous region, a segregated phase, a corrosion pit, a machined notch, a forging lap, a nick...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... the relatively thin wall of the seat, between circular holes in the cylindrical barrel. Secondary cracks were evident adjacent to the fractures in every failed ligament region. The fracture surfaces visually had the faceted or crystalline appearance of intergranular fracture near the exterior surfaces, as shown...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... of intergranular fracture near the exterior surfaces, as shown in Fig. 7(a) . No fracture origins were apparent, although corners at circular crossholes were considered the probable origins. The core fracture morphology consisted of elliptical dimples. Fig. 7 Valve seat fractures ( example 5 ). (a) View...