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metal-line corrosion

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046535
EISBN: 978-1-62708-234-1
..., before all the lines were completed. Type 304L stainless steel was selected from a number of alloys after extensive laboratory testing of corrosion resistance to the highly corrosive liquid. Each line was made of pipe 73 mm (2 7 8 in.) in diameter with a 5 mm (0.203 in.) wall thickness...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001107
EISBN: 978-1-62708-214-3
... corrosion Liners, corrosion Incoloy 800 UNS N08810 High-temperature corrosion and oxidation Background A 150 mm (6 in.) diam, 1.6 mm (0.065 in.) thick alloy 800 liner from an internal bypass line in a hydrogen reformer was removed from a waste heat boiler because of severe metal loss. Visual...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001638
EISBN: 978-1-62708-228-0
... spectroscopy Oxide scales Thermodynamics Incoloy 800H UNS N08800 High-temperature corrosion and oxidation Introduction After 9 years in service the transfer line of an ethane-cracking furnace developed a leak during decoking of the furnace tubes. The purpose of the furnace is to heat saturate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001420
EISBN: 978-1-62708-220-4
... over most of its circumference. The basket also contained a 22-gauge Monel metal liner that had been perforated by stabbing, raising pronounced burrs that faced each hole. Apart from the local spots of corrosion due to the lining, the inner surface of the basket showed little evidence of general...
Image
Published: 15 January 2021
Fig. 14 (a) Surface view of interdendritic microbiologically influenced corrosion (MIC) attack at the fusion line of a weld in stainless steel; nondendritic at “A” and dendritic at “D.” (b) Cross section of damage associated with MIC showing extensive corrosion of weld metal and fusion line More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0091594
EISBN: 978-1-62708-228-0
... Abstract Two leaks were discovered at a sulfur recovery unit in a refinery. The leaks were at pipe-to-elbow welds in a 152 mm (6 in.) (NPS 6) diam line, operating in lean amine service at 50 deg C (120 deg F) and 2.9 MPa (425 psig). Thickness measurements indicated negligible loss of metal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001421
EISBN: 978-1-62708-235-8
... failures Mixed-mode fracture Corrosion fatigue The part concerned was the bottom flange of a vertical pipe coupled to an isolating valve in a steam supply line to a turbine, the steam pressure being 1,500 lb. per sq. in. and the temperature 780° F. Multiple cracking occurred in the bore...
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
..., and the base metal was generally composed of pearlite and ferrite (a typical 302 grade B structure). A “hard” martensitic transition at the weld fusion line is evident in Fig. 7 . Fig. 7 Hard martensitic (acicular) transition at weld fusion line in sample B. 324×. Mechanical Properties Hardness...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
... Internal corrosion Top-of-the-line corrosion Underdeposit corrosion Microbial-influenced corrosion Stress-corrosion cracking High-pH stress-corrosion cracking Near-neutral-pH stress-corrosion cracking Hydrogen cracking Hydrogen-assisted cracking Hydrogen-induced cracking Stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0046874
EISBN: 978-1-62708-229-7
... Abstract The safety valve on a steam turbogenerator was set to open when the steam pressure reaches 2400 kPa (348 psi). The pressure had not exceeded 1790 kPa (260 psi) when the safety-valve spring shattered into 12 pieces. The steam temperature in the line varied from about 330 to 400 deg C...
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
.... For example, piping containing fluid may experience unique flow conditions that may result in erosion-corrosion failures. In that case, sections of pipe of different alloys may be placed on line and monitored. Other common methods of testing include accelerated tests, simulated or pilot testing...
Image
Published: 30 August 2021
Fig. 56 Failure of a reheat steam piping line at a power-generating station. (a) Fracture surface of reheat steam pipe showing corrosion products covering early fracture region and freshly exposed fracture surface of weld metal. (b) Closeup of weld metal showing intergranular cracks More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048801
EISBN: 978-1-62708-229-7
... Embrittlement Intergranular precipitation Steam Piping ASME SA387-C (Other, general, or unspecified) corrosion Brittle fracture A 75-cm (30-in.) OD by 33-mm (1.31-in.) thick pipe in a horizontal section of a hot steam reheat line ruptured explosively with serious damage and loss of life after...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091655
EISBN: 978-1-62708-229-7
...° of the circumference, the propagation path was entirely within the safe-end base metal, penetrating the outside surface adjacent to the fusion line of the repair weld. Metallographic examination of selected cross sections showed the effects of repeated thermomechanical cycling during welding on the precipitate...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001281
EISBN: 978-1-62708-215-0
... degradation appeared to be occurring in the HPT section. Damage of this type had not been seen before in this engine. The compressor section of the engine was washed on-line with water every day. Every other day, a chemical wash solution was added to the water. The chemical wash was followed by a plain...
Image
Published: 01 January 2002
Fig. 12 MIC of stainless steel weldments. (a) MIC showing a surface view of interdendritic attack at the fusion line of a stainless steel weldment. “A,” nondentritite; “D,” dendrite. (b) Cross section of MIC at a stainless steel weldment showing extensive corrosion of weld metal and fusion More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001672
EISBN: 978-1-62708-236-5
... Abstract Failed ferrous components were analyzed from a crane that operated on an offshore platform. The crane failed during operation and fell into the sea. The brake spring on the boom hoist was found to have fractured in four places. The spring contained a line defect (seam...
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
... Power cables Splicing Transmission lines 1100 UNS A91100 1020 UNS G10200 Ductile fracture (Other, general, or unspecified) corrosion Background An 1100 aluminum alloy connector of a high-tension aluminum conductor steel-reinforced (ACSR) transmission cable failed after more than 20 years...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001065
EISBN: 978-1-62708-214-3
..., respectively) from the suction line were analyzed. Evidence of overall thinning of the elbow and pipe material and ductile tearing of fractures indicated that the feed water pipe failed as a result of an erosion corrosion mechanism, which thinned the wall sufficiently to cause rapid, ductile tearing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001705
EISBN: 978-1-62708-234-1
... in these products that other 300 series stainless steels, [ 10 , 11 ]. Since knife-line attack can occur in the stabilized grades, this is another possible cause of failure. The as-received steel will contain columbium (or tantalum) carbide, but not chromium carbide. Welding would create a narrow band of metal...