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corrosion performance

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0091362
EISBN: 978-1-62708-220-4
... gas system In order to preserve the structural integrity and corrosion performance of the new generation of ferritic stainless steels, it is important to avoid the pickup of the interstitial elements carbon, nitrogen, oxygen, and hydrogen. In this particular case, the vendor used a flow rate...
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
.... No material or manufacturing defects were found to explain the different service performance of the two impellers. Microstructure, microhardness and material chemistry are consistent with the specified material. Examination reveals the damage mechanism to be corrosion-enhanced cavitation erosion, the most...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001046
EISBN: 978-1-62708-214-3
... alloy C-276) were placed directly in the hot gas stream, containing HCl and Cl2, for in situ testing. Results of this investigation showed that nickel-chromium corrosion-resistant alloys, such as Inconel 600, Inconel 625, and Inco alloy C-276, performed well in this environment. Laboratory testing...
Image
Published: 15 January 2021
Fig. 4 Typical corrosive wear testing techniques. (a) Pin-on-disc tester (the specimen can be the pin or the disc) used to perform abrasion-corrosion tests (using hard abrasive pin or disc as the counterface) and sliding wear corrosion tests (using relatively smooth counterface). Source: Ref More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0091699
EISBN: 978-1-62708-219-8
... conditioning equipment Ammonia Phosphorus-deoxidized copper Stress-corrosion cracking Eddy current inspection was performed on a leaking absorber bundle in an absorption air-conditioning unit. The inspection revealed cracklike indications in approximately 50% of the tubes. The tube material...
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
... occurred can be instructive. Photographic documentation must be performed with special attention given to capturing the true colors of the corrosion products. Macrographs of the corrosion deposit should include any layering effects in the deposits. Laboratory photography in a controlled setting should...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001704
EISBN: 978-1-62708-218-1
... steel welds, typically when there is little or no flow of the contained liquid. Positive identification of MIC can be difficult, as many of its characteristics are common to other types of pitting corrosion, such as chloride attack. Therefore, diagnosis should be performed carefully...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
..., and a history of the environment are all useful resources in resolving corrosion failures. Information regarding system upsets or diversions from the normal operating environment should be provided. A comparison of the actual material utilized with the material design specifications should also be performed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001560
EISBN: 978-1-62708-217-4
.... nominal strain rate for the residue paste tests, shown in Figure 5 , indicates that the most severe loss in ductility occurred at a nominal strain rate of 1.4×10 −6 s −1 . At both slower and faster strain rates, the ductility is increased. Results of Testing Performed in Corrosion Product Paste...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001651
EISBN: 978-1-62708-229-7
... sulphates, ammonia, etc., and to run trials on one unit with tubes of other alloys such as 80-20 Cu-Ni or 70-30 Cu-Ni to evaluate their performance prior to any large scale retubing operations. Admiralty brass Stress-corrosion cracking Intergranular corrosion Dealloying/selective leaching...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001047
EISBN: 978-1-62708-214-3
... in the inlet area. In each of these cases, welding was performed on the floating skirt. Applications The condenser is designed to liquefy gaseous HNO 3 , which is catalytically produced from streams of NO x and water. Circumstances Leading to Failure Corrosion was discovered during inspection...
Image
Published: 15 January 2021
. Corrosive wear tests performed on a pin-on-disc tester at a sliding velocity of 4 cm/s (1.6 in./s) More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001051
EISBN: 978-1-62708-214-3
... per inch of thickness. Performance of Other Parts in Same or Similar Service An investigation of cracking at a second PWR and subsequent constant-extension-rate testing led to the conclusion that although the cracking was considered to be caused by a low-cycle corrosion fatigue phenomenon...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001775
EISBN: 978-1-62708-241-9
... stresses due to bend forming of the tube, especially because no stress relief annealing was performed after deformation. These residual stresses caused the two main cracks to propagate essentially parallel to each other and lead to minimal lateral crack growth. In regards to the corrosive media...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001044
EISBN: 978-1-62708-214-3
...). Corrosion or Wear Deposits Chemical analysis of a typical crack fracture surface was performed using scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) analysis. The spectrum revealed contamination by iron, sulfur, and silicon. The iron and sulfur detected in the cracks were believed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001528
EISBN: 978-1-62708-219-8
... reveals the presence of chlorine and sulfur, two elements known to be detrimental to corrosion performance. Iron, chromium, nickel, and oxygen are present on the fracture surfaces in the form of corrosion products (metal oxides). Calcium is also present on the fracture surfaces due to minerals...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0060104
EISBN: 978-1-62708-220-4
... material was recommended to avoid future failures and loss of service. Chemical processing equipment Chlorides Eddy current testing Evaporators Tubes 316 UNS S31600 Pitting corrosion Stress-corrosion cracking Eddy current inspection was performed on a vertical evaporator unit used...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001125
EISBN: 978-1-62708-214-3
... (6.1 in.) long, with 66 mm (2.6 in.) on each side for compression assembly. Such connectors have a long record of trouble-free performance. The steel cable was 0.67% C hot-drawn plain carbon steel, also galvanized for corrosion protection. Fig. 1 Schematic of the failed connector. Specimen...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c9001568
EISBN: 978-1-62708-230-3
... Steel Suction Roll Performance Design and Materials,” Pulp & Paper Industry Corrosion Problems, National Association of Corrosion Engineers , 1977 , Vol. 2 , p. 105 . Selected References Selected References • Lampman S. , Intergranular Fracture , Failure Analysis...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0091384
EISBN: 978-1-62708-219-8
... axis. The perforations and the crack were at the 6 o'clock position. Investigation Visual examination of the pipe showed two large holes ( Fig. 1a ). The areas surrounding the holes showed delaminations and corrosion deposits. Radiography was performed to evaluate the material quality...