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waterwall corrosion

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Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004156
EISBN: 978-1-62708-184-9
..., and chlorine. This article describes the two categories of fireside corrosion based on location in the furnace: waterwall corrosion in the lower furnace and fuel ash corrosion of superheaters and reheaters in the upper furnace. It discusses prevention methods, including changes to operating parameters...
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Published: 01 January 2006
Fig. 4 Weld overlay cladding of the furnace waterwall for corrosion protection of carbon steel boiler tubes and membranes in WTE boilers. Source: Welding Services Inc. More
Image
Published: 01 January 2006
Fig. 5 Alloy 625 overlay on the waterwall revealing typical pitting type corrosion attack More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004157
EISBN: 978-1-62708-184-9
..., superheater tubes, and generating banks. The waterwall, screen tubes, and generating bank tubes are typically made of carbon steels, while superheater tubes are made of carbon steels or chromium-molybdenum steels. The corrosion problems with these boiler tubes in WTE boilers is discussed in detail in Ref 1...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004151
EISBN: 978-1-62708-184-9
... thermal gradients to study waterwall corrosion in boilers ( Ref 13 ). It was found that chloride species in deposits can also move to the metal/scale interface and cause scale spallation when a thermal gradient is present, especially when the thermal gradient is steep enough to cause melting...
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
... impingement Fireside corrosion of waterwall tubing Low-temperature (dewpoint) fireside corrosion Falling-slag damage Tube rubbing Rupture Short-term overheating (stress rupture) Long-term overheating (creep rupture) Graphitization Cracking Corrosion fatigue...
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
... cleaning corrosion Internal 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...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005775
EISBN: 978-1-62708-165-8
... of pack cementation aluminizing, which is used to improve the performance of steels in high-temperature corrosive environments. aluminizing chromizing pack cementation siliconizing PACK CEMENTATION is the most widely employed method of diffusion coating. In general, diffusion coatings...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004124
EISBN: 978-1-62708-184-9
... Corrosion Fireside corrosion Low-temperature Waterwall Coal ash Oil ash Lack of quality control Maintenance cleaning damage Chemical excursion damage Materials damage Welding defects Source: Ref 7 Stress Rupture Failures in Boiler Environments Stress and temperature...
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
..., or <570 °F) react with carbon steels by dissolving the protective oxide film and then reacting with iron to cause accelerated wastage. Waterwall fireside corrosion may develop when incomplete fuel combustion causes a nonoxidizing, reducing condition. Incomplete combustion causes the release...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004133
EISBN: 978-1-62708-184-9
... Abstract This article describes the control of water chemistry in the steam cycle of a power plant for achieving corrosion control, deposition prevention, and higher cycle efficiency. It discusses the materials requirements of the components exposed to supercritical water in supercritical (SC...
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
... Abstract High-temperature corrosion can occur in numerous environments and is affected by various parameters such as temperature, alloy and protective coating compositions, stress, time, and gas composition. This article discusses the primary mechanisms of high-temperature corrosion, namely...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004190
EISBN: 978-1-62708-184-9
... Abstract This article discusses the methods of pulp production, pulp processing, pulp bleaching, and paper manufacturing. It describes various types of digesters, their construction materials, the corrosion problems encountered, and methods to protect these digesters from corrosion. The article...
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
... 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 information...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006813
EISBN: 978-1-62708-329-4
... a description of heat-transfer surface area, discussing the design of the tubular heat exchanger. Next, the article discusses the processes involved in the examination of failed parts. Finally, it describes the most important types of corrosion, including uniform, galvanic, pitting, stress, and erosion...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003671
EISBN: 978-1-62708-182-5
... Abstract This article provides information on the thermodynamics and kinetics of high-temperature corrosion. The thermodynamics of high-temperature corrosion reactions reveals what reactions are possible under certain conditions and kinetics explains how fast these possible reactions...
Book Chapter

Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001293
EISBN: 978-1-62708-170-2
... in the hot sections of all gas turbine engines are coated to enhance resistance to hot corrosion. The most widely used coatings are those based on the intermetallic compounds NiAl and CoAl, which are formed by the diffusion interaction of aluminum with surfaces of the nickel and cobalt alloys, respectively...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006433
EISBN: 978-1-62708-192-4
..., and erosion thought of as “pure.” Erosion-corrosion synergistic or antagonistic interactions are considered in this article. Following Finnie ( Ref 7 ), variables affecting pure erosion can be broadly separated into three types: impingement variables describing the particle flow, particle variables...
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...