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Uniform corrosion

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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
... 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. These...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091291
EISBN: 978-1-62708-234-1
.... Boiler tubes Chealating Feedwater Carbon steel Uniform corrosion The carbon steel tubes shown in Fig. 1 have been corroded to paper thinness, revealing a lacelike pattern of total metal loss. These steel tubes are from a boiler feedwater heater feeding a deaerator. As part of the boiler-water...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091293
EISBN: 978-1-62708-234-1
... attack, specifically sulfur-reducing bacteria. No recommendations were made. Piping Sulfur-reducing bacteria Water heaters Copper pipe Uniform corrosion Biological corrosion Microbiological attack of copper piping has been well documented and was found in a closed-loop water heater system...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0091292
EISBN: 978-1-62708-219-8
... Uniform corrosion (Other, general, or unspecified) corrosion The 25 mm (1 in.) copper coupling shown in Fig. 1 has been uniformly degraded around most of the circumference of the bell and partially on the spigot end. One penetration finally occurred through the thinned area on the spigot end of...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048397
EISBN: 978-1-62708-226-6
... Phase transformations Surgical implants Chromium steel Uniform corrosion The four-hole Lane plate shown in Fig. 1(a) was inserted 46 years ago and remained in the body for 26 years. A large portion of the plate disintegrated and consisted mainly of corrosion products. Figure 1(b) shows the...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001699
EISBN: 978-1-62708-234-1
... of corrosion monitoring and poor water quality. Pipe replacement and a regular water testing program were recommended. Monitoring Water pipelines Water treatment Steel pipe Uniform corrosion Crevice corrosion Biological corrosion A shopping mall in South Carolina was originally...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001702
EISBN: 978-1-62708-219-8
... Uniform corrosion Bridges located in coastal environments suffer many of the same corrosion problems as those exposed to repeated applications of deicing salts. Salt contamination of concrete causes corrosion of the steel reinforcement leading to cracking of the concrete as a...
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
... cleaning Storage tanks 1006 UNS G10060 Uniform corrosion Metalworking-related failures After defining the cause of failure by laboratory analysis, most often corrective measures can be established. However, additional laboratory tests are sometimes needed, first to recreate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001715
EISBN: 978-1-62708-219-8
... general corrosion, where the cross section of the wire is reduced until the strength of the wire is exceeded. Most of the failures evaluated were attributed to stress-corrosion cracking. Pipe Prestressed concrete Service life Splitting ASTM A648 Uniform corrosion Stress-corrosion cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001247
EISBN: 978-1-62708-228-0
... and oxidation Uniform corrosion Three samples from a ruptured 316 stainless steel tube were examined. The samples are shown in Fig. 1 . The unmarked sample was taken from the centre of the rupture where the tube thinned, bulged, spread and became partially flattened. Sample 1 was taken from the...
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
... the purchasing specifications and observations and photographs taken during surveys enroute. A frequent conclusion of such investigations is that the alleged corrosion is of no significance or did not occur during the voyage. Mill scale Rusting Storage Hot-rolled steel Uniform corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001141
EISBN: 978-1-62708-227-3
... assess the susceptibility of steel late to lamellar tearing the slice bend test 1 , 2 , a simple and inexpensive destructive test was used. Figure 11 illustrates the procedure for preparing the slice bend test. This form of the test ensures that reasonably uniform strain is applied across the whole...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0006440
EISBN: 978-1-62708-234-1
... microscopy. The corrosion product contained molybdenum and copper with a trace of gold. The base material was analyzed as molybdenum with negligible alloying additions. The primary mode of corrosion attack on the base material appeared to be intergranular, although uniform corrosion was evident also. It was...
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
... Abstract This article addresses the forms of corrosion that contribute directly to the failure of metal parts or that render them susceptible to failure by some other mechanism. It describes the mechanisms of corrosive attack for specific forms of corrosion such as galvanic corrosion, uniform...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001718
EISBN: 978-1-62708-220-4
.... Uniform corrosion is evident and two deep linear defects are present on impeller blade tips. In contrast, the undamaged impeller surfaces are covered with a dark oxide film. This and many other impellers in seemingly identical service conditions survive long lives with little or no apparent damage. No...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001683
EISBN: 978-1-62708-234-1
... voids generally grew in the wrought material by uniform general corrosion. Tunneling or worm-holing was also observed, whereby void extension occurred by initiating daughter voids probably at flaws or other inhomogeneities. Selective attack occurred within the fusion zone, i.e., within the cast two...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001738
EISBN: 978-1-62708-220-4
... properly adjusted. Since this was the case, external stresses had to be ruled out. During a planned shut-down in 1990 it appeared that the bottom manifold had undergone diametrical expansion of up to 2% due to creep. This expansion was uniform in diameter (no bulging), but locally extended over the full...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001652
EISBN: 978-1-62708-220-4
.... Examination of the inner surface of the elbow revealed that it was covered with a crazed pattern of cracks. The pattern was not uniform, being barely visible in some areas and quite deep in others. The area immediately around the leak was severely cracked. Metallographic sections were prepared from the leak...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001311
EISBN: 978-1-62708-215-0
... stainless steel tubes. Visual and stereoscopic examination revealed three types of corrosion on the inside surfaces of the tubes: uniform attack, deeper localized corrosive attack, and accelerated uniform attack. Metallographic analysis indicated that pronounced dissimilar-metal corrosion had occurred in...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001834
EISBN: 978-1-62708-241-9
... Abstract The failure of T12 reheater tubes that had been in service for only 3000 h was investigated. The thickness of the tubes was visibly reduced by heavy oxidation corrosion on the inner and outer walls. The original pearlite substrate completely decomposed. Uniform oxide scale observed on...