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wetting

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Image
Published: 30 August 2021
Fig. 7 Schematic representation of molten solder wetting a substrate. The balance of surface tension forces at the contact edge is illustrated by the black arrows. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001695
EISBN: 978-1-62708-229-7
... have been in wet storage for up to 8 years. 1 The spent nuclear fuel is primarily irradiated uranium-aluminum alloy or depleted uranium metal fuel clad with a 30-mil type 1100 or 8001 aluminum alloy. After about two years of storage, visible corrosion product was evident on the depleted uranium...
Image
Published: 30 August 2021
Fig. 31 Wet fluorescent magnetic-particle inspection photograph of outside pipe surface showing an SCC colony near the rupture area. Multiple similar colonies were observed both upstream and downstream of the rupture. More
Image
Published: 30 August 2021
Fig. 15 Crater crack in carbon steel fillet weld termination as revealed under wet fluorescent magnetic-particle testing More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0091622
EISBN: 978-1-62708-230-3
... was due to Cl-SCC in an area of debris buildup. It appeared the original casting suffered SCC in a low-oxygen area high in chlorides from repeated wet/dry cycles where there was a buildup of debris. Recommendations included redesigning the neck liner to eliminate the abrupt change where there was debris...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0091806
EISBN: 978-1-62708-219-8
...Abstract Abstract A failure occurred in buried brass (92% Cu, 8% Zn) piping used to carry drinking water in wet clay soil after less than two years in service. Investigation (visual inspection, chemical analysis of both the pipe surface and water, and a comparison of the corrosion failure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001241
EISBN: 978-1-62708-235-8
...Abstract Abstract Decarburization of steel may occur as skin decarburization by gases either wet or containing oxygen, and as a deep ongoing destruction of the material by hydrogen under high pressure. Guidelines are given for recognizing decarburization and determining at what point cracks...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091644
EISBN: 978-1-62708-217-4
... holes. Recommendations included inspecting for corrosion all the bolts that were installed using the water-soluble coolant at the spliced joint areas, rinsing all machined bolt holes with a noncorrosive agent, and installing new PH13-8Mo stainless steel bolts with a polysulfide wet sealant. Air...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0092142
EISBN: 978-1-62708-217-4
... holes. Recommendations included inspecting for corrosion all the bolts that were installed using the water-soluble coolant at the spliced joint areas, rinsing all machined bolt holes with a noncorrosive agent, and installing new PH13-8Mo stainless steel bolts with a polysulfide wet sealant...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0048698
EISBN: 978-1-62708-228-0
...Abstract Abstract Wet natural gas was dried by being passed through a carbon steel vessel that contained a molecular-sieve drying agent. The drying agent became saturated after several hours in service and was regenerated by a gas that was heated to 290 to 345 deg C in a salt-bath heat...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0065826
EISBN: 978-1-62708-233-4
...Abstract Abstract The wires used in a wet precipitator for cleaning the gases coming off a basic oxygen furnace failed. The system consisted of six precipitators, three separate dual units, each composed of four zones. Each zone contained rows of wires (cold drawn AISI 1008 carbon steel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001559
EISBN: 978-1-62708-229-7
... the presence of low level surface chlorides. Controls were implemented to insure that temperatures are kept below 150 deg F, or, walls of the pipe are moisture-free or the cumulative wetted period will never exceed 30 h. Chlorides Piping 304 UNS S30400 Stress-corrosion cracking Transgranular...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001676
EISBN: 978-1-62708-229-7
... the interaction with gamma radiation) and to prevent corrosion. A number of failures have occurred over the years because of a loss of the He cover gas in the assembly. This has resulted in either acid attack on the Inconel 600 sheath in a wet environment or gaseous corrosion in a dry environment. In the latter...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0091757
EISBN: 978-1-62708-232-7
... Inconel 617 (N06617) as a filler alloy. Wet charcoal is fed in at one end of the kiln and travels while being tumbled within the inclined rotating vessel. Temperatures range from 480 deg C (900 deg F) (Zone 1) to 900 deg C (1650 deg F) (Zones 2 and 3). Steam is introduced at the discharge end at 95 g/s...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001441
EISBN: 978-1-62708-220-4
... 5% antimony, which is more difficult to use than the usual tin-lead alloys. The use of this particular type of solder was a contributory factor in the production of unsound joints in the samples examined. Expansion Freezing Moisture Pipe joints Wetting Sn-5Sb Copper Joining-related...
Image
Published: 01 January 2002
Fig. 11 FeS/SRB corrosion under disbonded polyolefin tape coating on a buried pipeline in a wet anaerobic location shows soft, black corrosion products rich in iron sulfides overlying severe pitting More
Image
Published: 30 August 2021
.) This macrocrack formed in the high-stress region near the weld because of the linkage of microcracks and fissures caused by high-temperature hydrogen attack. WFMT, wet fluorescent magnetic-particle testing; ID, inside diameter More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001608
EISBN: 978-1-62708-236-5
... with decades of extensive research and accumulation of experience and case histories. With hot-rolled steel, while it is not as simple as wet steel rusts , it is not that much more complicated. Sometimes efforts to semi-protect the steel can worsen the situation ( Fig. 5a,b , and c ). Fig. 5 Pipe...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006827
EISBN: 978-1-62708-329-4
... control and optimization is important to prevent process defects. Solderability/Wetting Solderability refers to the ability of a surface to be effectively wetted and to form a metallurgical bond. The first requirement for the formation of a bond during soldering is wetting. In addition to being...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001719
EISBN: 978-1-62708-231-0
... was then wetted with molten brass and catastrophic failure occurred. Microscopic analysis showed that copper had penetrated the surface and spread into the steel. In 1954, Magnuflux Corp. conducted a study on two failed railroad axles 4 . The axles exhibited visible copper color in the cracks. Spectrographic...