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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001068
EISBN: 978-1-62708-214-3
... water and dried. Atmospheric corrosion Marine environments 304L UNS S30403 Crevice corrosion Pitting corrosion After removal from storage, four stainless steel tanks were found to be severely corroded inside as well as outside, to an extent that none could be salvaged...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001348
EISBN: 978-1-62708-215-0
... dished ends had been produced by cold deformation. The tanks had been fabricated for the storage of helium gas used in the core of a pressurized heavy-water reactor. After fabrication, the tanks were stored unprotected in a coastal atmosphere for about 4 years. Visual examination of the first...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001349
EISBN: 978-1-62708-215-0
... Abstract The dished ends of a heavy water/helium storage tank manufactured from 8 mm (0.3 in.) thick type 304 stainless plate leaked during hydrotesting. Repeated attempts at repair welding did not alleviate the problem. Examination of samples from one dished end revealed that the cracking was...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001055
EISBN: 978-1-62708-214-3
... laboratory. Furthermore, the girth weld sequence should be staggered to reduce residual welding stresses. Means of reducing water hammer, such as use of more surge tanks and/or air release valves, should also be investigated. Classic chevron marks, which are indicative of a fast fracture and usually...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001682
EISBN: 978-1-62708-229-7
... low temperature, low pressure reactors use heavy water as a neutron moderator and as the primary coolant for the reactor core and internal components. Heavy water is circulated through the reactor by six primary coolant loops. Each loop, and the reactor tank, is fabricated from austenitic stainless...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0089339
EISBN: 978-1-62708-233-4
... Abstract Leakage was identified around a coupling welded into a stainless steel holding tank that stored condensate water with low impurity content. The tank and fitting were manufactured from type 304 stainless steel. The coupling joint consisted of an internal groove weld and an external...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001821
EISBN: 978-1-62708-241-9
... the tank, providing an approximately 5.6 cm (2.2 in.) diameter opening through which the tank emptied. As the liquid and gaseous propane spread, it was eventually ignited by the pilot light of a hot water heater in a mobile home roughly 120 m (400 ft) away. The fire flashed back, burning off the area...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001765
EISBN: 978-1-62708-241-9
... Abstract This paper describes the investigation of a corrosion failure of bottom plates on an aboveground tank used for the storage of potable water. The tank was internally inspected for the first time after six years of service. Paint blisters and rust spots were observed on the bottom plates...
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
... K02200 Stress-corrosion cracking The Savannah River Site (SRS) uses large, water-cooled, carbon steel tanks to store alkaline high-level radioactive solutions that arise from the production of nuclear materials. Three types, or designs, of tanks have been used over the 50-plus years...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0091208
EISBN: 978-1-62708-220-4
.... Heating was provided near the center of the tank and water in the backfill below the tank floor should be minimal. Perforations of the tank were large, and thinning was apparent in the adjacent areas. Fig. 1 View of an isolated pit on the outside of the floor tank of a liquid asphalt tank. The...
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
... and 28 ft diameter and made of 8 mm thick cold-worked 304 SS plate. The tank was erected near the seashore, and an earthquake in the nearby area resulted in tilting of the tank to one side. The outer surface of the tank was cooled by a continuous flow of water. After about 6 years of satisfactory...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001064
EISBN: 978-1-62708-214-3
... pipework was not expected to suffer corrosion in the process liquors. It was built by a European company according to a well-established design. Fig. 1 View of new stainless steel chemical plant. The pipework, tanks and reservoirs were hydrotested using local mountain borehole water, which was...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001386
EISBN: 978-1-62708-215-0
... (twice daily) washdowns using high-pressure hot water. Fig. 1 View of load cell installation Two load cells from the same tank failed within several days of each other. Both cells had become difficult to zero and had shown calibration drift. Load cells on a similar tank that was used less...
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
... ventilation system have an effect on the transport of corrosive salts through the system into the vent pipe, possibly contributing to its degradation. Table 1 Summary of Relevant Failures in Tank 39 Purge Ventilation System Incident Impact Chromate cooling water system (CCW) failure The...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001454
EISBN: 978-1-62708-220-4
... a significant extent by concentrated sulphuric acid, but if dilution occurs, then corrosion does take place. Pre-supposing that dilution had occurred some time during the service life of the tank—and this could easily be brought about by the condensation of water vapour on a surface wetted with...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001127
EISBN: 978-1-62708-214-3
.... The floats failed while the condoiminium owner was absent. During that time span, both tank floats broke from their stems, causing water to flow continuously at full capacity into both tanks. Most of the water in each tank drained through the overflow standpipe into the main sewer. Only a relatively...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006788
EISBN: 978-1-62708-295-2
... tentatively identified by the rapidity, severity, and localized nature and location of the corrosion. Favored locations for MIC failures include low spots where water can collect in piping, dead-end or shut-in piping, tank walls at the interface between liquid hydrocarbons and underlying water, or areas of...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001525
EISBN: 978-1-62708-220-4
... general corrosion with severe discoloration at the weld. A sample of this corrosion debris was placed into a watch glass and soaked in a few drops of deionized water. The pH of the resulting solution indicated that it was highly alkaline, suggesting that the corrosion debris contained potassium...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001034
EISBN: 978-1-62708-214-3
... weld areas and away from the weld zones. Terraced, near-surface pits with subsurface caverns and a high level of sulfur in the pit residue, both indicative of bacteria-induced corrosion, were found. No evidence of weld defects or defective material was present. Testing of the water used at the wash...
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
... municipal water systems to treat for MIC. Stirring a tank of fluid could be all that is required to avoid pitting corrosion. Alloy changes are often employed to combat corrosion problems, particularly when the replacement material is cost-effective. For example, a copper alloy prone to selective...