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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048309
EISBN: 978-1-62708-229-7
... Abstract A 75 mm OD x 7.4 mm wall thickness carbon steel boiler tube ruptured. A substantial degree of corrosion on the water-side surface leaving a rough area in the immediate vicinity of the rupture was revealed by visual examination. Decarburization and extensive discontinuous intergranular...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0091009
EISBN: 978-1-62708-235-8
..., immediately prior to heat treatment. Multiple-pass arc welds secured the carbon-steel flanges to the Ni-Cr-Mo-V alloy steel tubes. Investigation (visual inspection, metallographic analysis, and evaluation of the fabrication history and the analysis data) supported the conclusion that the tube failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001626
EISBN: 978-1-62708-235-8
... Abstract A type 17-4PH stainless steel tube exhibited brown discoloration after a pickling operation. EDS analysis of the extracted substance revealed relatively high levels of iron and chromium, along with lower amounts of aluminum, silicon, sulfur, chlorine, calcium, manganese, and nickel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091336
EISBN: 978-1-62708-234-1
... Abstract A type 304 austenitic stainless steel tube (0.008 max C, 18.00 to 20.00 Cr, 2.00 max Mn, 8.00 to 10.50 Ni) was found to be corroded. The tube was part of a piping system, not yet placed in service, that was exposed to an outdoor marine environment containing chlorides. As part...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001811
EISBN: 978-1-62708-241-9
... the positions at which the values are measured Abstract A deformed steel tube was received for failure analysis after buckling during a heat-treat operation. The tube was subjected to various metallurgical tests as well as nondestructive testing to confirm the presence of residual stresses...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001110
EISBN: 978-1-62708-214-3
... Abstract A 44.5 mm (1.75 in.) diam type 321 stainless steel seamless tube in a power-generating turbine failed after 19,000 h in service. The tube was used to carry a mixture of approximately 25% steam and 75% hot air. Three fractured pieces and part of the tube containing the mating fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048331
EISBN: 978-1-62708-229-7
... Abstract The top tube of a horizontal superheater bank in the reheat furnace of a steam generator ruptured after seven years in service. The rupture was found to have occurred in the ferritic steel tubing (2.25Cr-1Mo steel (ASME SA-213, grade T-22)) near the joint where it was welded...
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
... Abstract Three samples from a ruptured 316 stainless steel tube were examined. The tube, 114 mm OD, wall thickness 8.00 mm, with 13 mm thick 321 stainless steel fins welded to the outer surface of the tube, was part of a heater through which sour gas, containing methane plus H2S and CO, passed...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001345
EISBN: 978-1-62708-215-0
... Abstract A cold-formed Grade TP 304 stainless steel swaged region of a reheater tube in service for about 8000 hours cracked because of sulfur-induced stress-corrosion cracking (SCC). Cracking initiated from the external surface and a high sulfur content was detected in the outer diameter...
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Published: 01 June 2019
Fig. 1 Pitted inside-diameter surface of AISI type 410 stainless steel tube. (a) Typical example of pitting. Approximately 2 1 2 ×. (b) Enlargement of pit shown in (a). Approximately 50× More
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Published: 01 June 2019
Fig. 1 Austenitic stainless steel tube that was corroded where a fabric bag was taped to it. Courtesy of M.D. Chaudhari, Columbus Metallurgical Service More
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Published: 01 June 2019
Fig. 1 Corrosion products and tuberculation at the ID surface of the steel tube. More
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Published: 01 June 2019
Fig. 1 AISI 1025 steel tube post for a carrier vehicle. The post failed in fatigue because of improper design and choice of flange metal. Dimensions given in inches More
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Published: 01 June 2019
Fig. 1 A6 tool steel tube-bending-machine shaft that failed by fatigue fracture. Section A-A: Original and improved designs for fillet in failure region. Dimensions are in inches. View B: Fracture surface showing regions of fatigue-crack propagation and final fracture More
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Published: 01 June 2019
Fig. 1 Section of stainless steel tube/fin assembly removed from economizer. Note the weld geometry and fin weld locations. More
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Published: 01 January 2002
Fig. 34 AISI 1025 steel tube post for a carrier vehicle. The post failed in fatigue because of improper design and choice of flange metal. Dimensions given in inches More
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Published: 01 January 2002
Fig. 34 Hot cracking that developed in a stainless steel tube weld. 10% oxalic acid electrolytic etch. 30× More
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Published: 01 January 2002
Fig. 4 Fracture of a steel tube. (a) Fracture surface at approximately actual size, showing point of crack initiation (at arrow), chevron and fanlike marks, and development of shear lips. (b) Fracture-origin area at 5×; note that fracture nuclei differ in texture from the main fracture surface. More
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Published: 30 August 2021
Fig. 13 Stainless steel tube-to-tubesheet welding in production More
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Published: 30 August 2021
Fig. 41 AISI 1025 steel tube post for a carrier vehicle. The post failed in fatigue because of improper design and choice of flange metal. Dimensions given in inches More