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acid dew point corrosion

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Published: 01 December 2018
Fig. 6.118 Acid dew-point corrosion on external surface of an evaporator tube More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430290
EISBN: 978-1-62708-253-2
... such as waterwall, fuel ash, and hot corrosion, acid dew-point or cold-end corrosion, and polythionic acid corrosion. It also addresses stress corrosion cracking and includes relevant case studies. acid dew point corrosion boiler tubes fire-side corrosion fuel ash corrosion hot corrosion polythionic acid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
...) Chelate corrosion Fire-side corrosion: Waterwall corrosion or reduced atmosphere corrosion Fuel ash corrosion Coal-ash corrosion Oil-ash corrosion Hot corrosion Acid dew point corrosion or cold-end corrosion SCC Polythionic acid stress-corrosion cracking (PASCC) Fire...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870045
EISBN: 978-1-62708-299-0
... loss in strength resuiting from exposure to seacoast atmosphere at Point Judith, Rl. Both curves show the self-stopping nature of pitting corrosion of aluminum but at different rates of change. Source: Ref 2 Pits can initiate relatively quickly and grow to a limiting depth, at which mass...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820077
EISBN: 978-1-62708-339-3
.... The feedwater economizers operate at 45 to 150 °C (110 to 300 °F) and are located immediately before the exhaust stack. Economizers generally receive special attention in the materials selection processes, due to the potential of acid dew-point corrosion under normal operating conditions. Some HRSG units use...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430376
EISBN: 978-1-62708-253-2
... 197 – 203 6.32 Andijani I. and Malik A.U. , “ Sulfur and Vanadium Induced Hot Corrosion of Boiler Tubes ,” presented at Chemistry & Industry Conference , 11 – 15 Dec 2004 ( Riyadh ) 6.33 Beychok M. , “ Chemical Engineering—Acid Dew Point ,” last modified Aug...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080001
EISBN: 978-1-62708-304-1
... service with the surrounding environment, resulting in high-temperature corrosion. In gaseous environments, high-temperature corrosion is defined as the corrosion that takes place above the maximum temperature at which acids condense and dew-point corrosion takes place. Although a majority of high...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... corrosion, caustic gouging, and pitting External corrosion or fire-side corrosion: For example, waterwall fireside corrosion, superheater/reheater fireside corrosion, and acid dew point corrosion The process of oxidation of iron is known as rusting or corrosion . The interaction of steam...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380039
EISBN: 978-1-62708-456-7
... or the original constituents employed. These groups are designated and defined as: Class 100, exothermic base: Formed by partial or complete combustion of a gas-air mixture; water vapor may be removed to produce a desired dew point Class 200, prepared nitrogen base: An exothermic base with carbon...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910193
EISBN: 978-1-62708-250-1
... environments, etc.) with deleterious man-made environmental contributions (road salts, atmospheric pollutants and emissions, and acid rain) provide a uniquely aggressive corrosive environment for automobiles. The goal of this chapter is to point out the connection between the characteristics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910427
EISBN: 978-1-62708-250-1
... dioxide (SO 2 ) Nitrogen dioxide (NO 2 ), nitric acid (HNO 3 ) Ammonia (NH 3 ) Particulate matter, sulfates, nitrates Meteorology Wind speed Wind direction Relative humidity (dew point) Temperature Solar radiation Rainfall volume and intensity Others Test...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870135
EISBN: 978-1-62708-299-0
... dioxide (SO 2 ) Nitrogen dioxide (NO 2 ), nitric acid (HNO 3 ) Ammonia (NH 3 ) Particulate matter, sulfates, nitrates Meteorology Wind speed Wind direction Relative humidity (dew point) Temperature Solar radiation Rainfall volume and intensity Others Test specimen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030349
EISBN: 978-1-62708-282-2
... occur, and these are fine-tuned based on real corrosion measurement data from the pipeline environment itself. On-line, real-time corrosion-monitoring sensors and measurement devices at strategic points identified through ICDA will, in turn, offer a quick response to upset conditions inside...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870025
EISBN: 978-1-62708-299-0
... (50 Å) thick (much thicker films can be produced at higher temperatures, in water near its boiling point, or in steam). If damaged (for example, a freshly abraded surface), this thin film reforms immediately in most environments and continues to protect the aluminum from corrosion. When the film...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
..., which must be present to make sulfur or the acid gases (CO 2 and H 2 S) corrosive, can be assumed to be present in nearly all productive geologic formations to varying degrees. Therefore, liquid water can be present from the bottom of the well up to the point in the flow system at which it is removed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030005
EISBN: 978-1-62708-282-2
... reaction metal sites, which yields a current flow from the anodic to cathodic sites. Detailed information about the possible corrosion reaction (and their metal potential values) as a function of aqueous electrolyte concentration and pH (acidity or alkalinity) in the presence of certain ions (atmospheric...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t51230105
EISBN: 978-1-62708-351-5
...: Bannos [1984] In joining technology, it is normal to express the fraction of water vapor in a hydrogen atmosphere in terms of the dew point, a parameter that can be measured directly. By definition, the dew point is the temperature at which water vapor in a given enclosure is saturated. The dew...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.9781627082532
EISBN: 978-1-62708-253-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
.... Moisture can collect on the surface, sometimes at relative humidities below the dew point, because of the hygroscopic nature of the dust or particles that deposit on the metal from the atmosphere. The resulting staining or localized pitting, although of little structural consequence in the 1 xxx , 3...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310233
EISBN: 978-1-62708-326-3
... of metallurgy, and in the period 1910 to 1914, English researchers noticed that one of their experimental iron-base alloys containing approximately 12% Cr had a unique property. Unlike their other compositions, it did not rust when samples were left in the corrosive atmosphere near the acid-etch area...