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waterwall corrosion

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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001277
EISBN: 978-1-62708-215-0
...Abstract Abstract Waterwall tube failure samples removed from a coal- and oil-fired boiler in service for 12 years exhibited localized underdeposit corrosion and hydrogen damage. EDS and XRD revealed that bulk internal deposits collected from the tubes contained metallic copper which can...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001320
EISBN: 978-1-62708-215-0
... monitoring and maintenance to ensure that another low-pH excursion does not occur. Boiler tubes Chlorides, environment ASME SA210-C Pitting corrosion Background Severe pitting was found on the internal surface of waterwall tubes at a south-eastern cogeneration facility. The areas most...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006756
EISBN: 978-1-62708-295-2
... buildup Fireside wastage Fireside oxidation Fireside corrosion of superheater and reheater tubing Fly-ash corrosion Soot-blower corrosion Coal-particle corrosion Steam impingement Fireside corrosion of waterwall tubing Low-temperature (dewpoint) fireside corrosion...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003521
EISBN: 978-1-62708-180-1
... deposit/corrosion product buildup Fireside wastage Fireside oxidation Fireside corrosion of superheater and reheater tubing Fly ash corrosion Sootblower corrosion Coal particle corrosion Steam impingement Fireside corrosion of waterwall tubing Low temperature (dew point...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001739
EISBN: 978-1-62708-215-0
... of Other Parts in Same or Similar Service Other waterwall tubing from the same boiler had failed due to irreversible hydrogen damage. Visual Examination of General Physical Features The as-received tube was visually examined. A small bulge with a through-wall crack was observed. Testing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001337
EISBN: 978-1-62708-215-0
... steels with chromium additions such as ASTM A213 Grade T11 or T22, which are resistant to graphitization damage. Boiler tubes Creep (materials) Graphitization, Heating effects Mechanical properties Microstructural effects Overheating ASTM A209 grade T1 UNS K11522 High-temperature corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001569
EISBN: 978-1-62708-229-7
...Abstract Abstract This paper reviews several fatigue failures from the waterwall, superheater, and economizer portions of the boiler, their causes and how they were mitigated and monitored. Some cases required simple field modifications by cutting or welding, repair of existing controls...
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 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...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001709
EISBN: 978-1-62708-229-7
...Abstract Abstract Several waterwall tubes in a power station boiler failed after ten years of service. The boiler is a suspension type equipped with 30 IK boxes where retractable soot blowers are inserted to clean the inside of the boiler using high-pressure steam. The tubes, which operate...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
.... Courtesy of Mohan Chaudhari, Columbus Metallurgical Services Fig. 9 Energy-dispersive spectroscopy corresponding to areas of Fig. 8 . Courtesy of Mohan Chaudhari, Columbus Metallurgical Services Fig. 11 Degradation of rupture for Udimet 500 due to hot corrosion at 705 °C (1300 °F...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... Severe Underdeposit Corrosion ,” Paper 8899, Corrosion/2017, NACE International , Houston, TX , 2017 45. Hendrix D.E. , Hydrogen Attack on Waterwall Tubes in a High Pressure Boiler , Mater. Perform. , Vol 34 ( No. 8 ), 1995 46. Port R.D. and Herro H.M. , Chap. 14...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006795
EISBN: 978-1-62708-295-2
... in a number of industries. This article describes the processes involved in erosion of ductile materials, brittle materials, and elastomers. Some examples of erosive wear failures are given on abrasive erosion, liquid impingement erosion, cavitation, and erosion-corrosion. In addition, the article provides...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... from corrosion, including coating degradation, is excessive. Grain-boundary attack and/or pitting by oxidation/hot corrosion is excessive. Foreign object damage is severe. Destructive sampling and testing indicate life exhaustion. Excessive deformation has occurred due to creep, causing...