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deposition corrosion

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001164
EISBN: 978-1-62708-227-3
... sulfur, mainly from the flue gas, and calcium and chlorine, mainly from the sea water. The gray corrosion product was interspersed with rust and a black carbonaceous deposit. Corrosion pitting and poor weld penetration, with carbide precipitation and heavy etching at grain boundaries, indicated...
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Published: 01 June 2019
Fig. 15 (a) XRD analysis of corrosion deposits in tube; (b) XRD analysis of corrosion deposit on rod #3 More
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Published: 01 June 2019
Fig. 3 Corrosion deposits and pitting in the 3003 aluminum. More
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Published: 01 June 2019
Fig. 2 Typical appearance of exterior corrosion deposits More
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Published: 01 June 2019
Fig. 9 EDS spectrum of corrosion deposit from interior weld. More
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Published: 01 June 2019
Fig. 10 EDXA concentration profiles in adherent keyway corrosion deposits collected by acetate replicas. More
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Published: 01 June 2019
Fig. 11 Corrosion deposits within crack removed by acetate replica (SEM, 5% nital etch). More
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Published: 15 January 2021
Fig. 2 Corrosion deposits on the outer-diameter surface of type 304 stainless steel inner braid wire strands used as reinforcement in a polytetrafluoroethylene hose used for chemical transport. Note corrosion at wire contact surfaces and underlying ribbon sections. Original magnification: 11.3× More
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Published: 01 December 1992
Fig. 3 Fracture surface covered with corrosion products and pulp deposits. No deformation or ductility is visible next to the fracture. 8×. More
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Published: 01 December 1992
Fig. 9 Spectrum obtained by EDAX analysis of external corrosion deposit. More
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Published: 01 December 1992
Fig. 10 Spectrum obtained by EDAX analysis of internal corrosion deposit. More
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Published: 01 December 1993
Fig. 2 SEM micrograph of pit with corrosion deposit partially removed. Note cracking at edge of pit and crystalline nature of remaining corrosion deposit. 388.8× More
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Published: 01 December 1993
Fig. 5 Branching pit. Corrosion deposit on interior is typical and is probably some form of cuprous oxide. 52× More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001334
EISBN: 978-1-62708-215-0
... that the tube failed from crevice corrosion under seawater deposits that had formed on the inner surface. Mechanical cleaning of the condenser tubes every 6 months and installation of intake screens of smaller mesh size were recommended. Aluminum bronzes Nuclear reactor components Seawater environment...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001808
EISBN: 978-1-62708-241-9
... and/or growth can initiate corrosion. Additionally, the biofilm can cultivate an electrochemical corrosion cell that can lead to localized or general corrosion. The material under the biofilm or deposit is generally the anode while the surrounding area is the cathode. Furthermore, if chloride ions are present...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001826
EISBN: 978-1-62708-241-9
... caustic attack that led to ruptures in areas of high stress. The escaping steam eroded the outer surface of the tube causing heavy loss of metal around the rupture points. boiler tubes stress rupture caustic corrosion carbon steel oxide scale deposits punch marks inductively coupled plasma...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
... at the extreme tip of the crack ( Fig. 9 ). In the other buckets investigated, the location where the failure initiated was not detected due to the high degree of deposit/corrosion on the surface of the fracture. Fig. 6 Dendritic appearance of the fracture surface of the third stage bucket Fig. 7...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001115
EISBN: 978-1-62708-214-3
... that the fracture initiated at the inside surface and grew across the wall. Longitudinal cross sections revealed heavy corrosion damage to the inside pipe surface. Metallographic examination indicated that the tubing failed as a result of severe weakening from internal corrosion. Gray-colored corrosion deposits...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001310
EISBN: 978-1-62708-215-0
..., corrosion under deposit (pitting and crevice), and dezincification. Fractures were transgranular and typical of stress-corrosion cracking. The primary cause of the corrosion deposit was low-flow conditions in those parts of the condenser where failure occurred. Maintenance of proper flow conditions...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001109
EISBN: 978-1-62708-214-3
... process. The basic cause of degradation was found to be hot corrosion caused by the deposition of alkali sulfates and chlorides. However this degradation may have been aggravated by thermal cycling and abrasion. The source of the salt was impurities in the flux. Two potential solutions were proposed...