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fire-side corrosion

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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...
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Published: 01 December 1989
Fig. 5.6. Temperature dependence of fire-side corrosion for 2¼Cr-1Mo ferritic steel and type 321 austenitic stainless steel ( Ref 6 ). More
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Published: 01 December 1989
Fig. 8.9. Comparison of fire-side corrosion resistance of various alloys ( Ref 43 ). More
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Published: 01 December 2018
Fig. 6.121 Optical micrograph indicating fire-side intergranular stress corrosion cracking and grain dropping in superheater tube, 400× More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
... Abstract This chapter provides an outline of the failure modes and mechanisms associated with most boiler tube failures in coal-fired power plants. Primary categories include stress rupture failures, water-side corrosion, fire-side corrosion, fire-side erosion, fatigue, operation failures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490383
EISBN: 978-1-62708-340-9
.... Relationship between hot-corrosion weight loss and temperature for ferritic steels ( Ref 41 ). Fig. 8.8. Relationship between hot-corrosion weight loss and chromium content for various alloys ( Ref 42 ). Fig. 8.9. Comparison of fire-side corrosion resistance of various alloys ( Ref 43...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080321
EISBN: 978-1-62708-304-1
... ( No. 6 ), 1987 , p 955 10.1016/0013-4686(87)87089-5 7. Reid W.T. , External Corrosion and Deposits—Boiler and Gas Turbines , Elsevier Publishing , 1971 8. Kawamura T. and Harada Y. , “ Control of Gas Side Corrosion in Oil Fired Boilers ,” Mitsubishi Technical Bulletin...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
...</xref>) Table 5.3. Failure mechanisms for boiler tubing ( Ref 1 ) Stress-rupture Short-term overheating High-temperature creep Dissimilar-metal welds Water-side corrosion Caustic corrosion Hydrogen damage Pitting (localized corrosion) Stress-corrosion cracking Fire-side...
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Published: 01 December 2015
Fig. 5 High-temperature sulfidic corrosion of 150 mm (6 in.) diameter carbon steel tube from radiant section of crude preheat furnace at crude distillation unit. Note accelerated attack on fire side. More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430314
EISBN: 978-1-62708-253-2
... Abstract Combustion byproducts such as soot, ash, and abrasive particulates can inflict significant damage to boiler tubes through the cumulative effect of erosion. This chapter examines the types of erosion that occur on the fire side of boiler components and the associated causes...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430001
EISBN: 978-1-62708-253-2
.... The heat transfer surfaces are therefore required to be periodically cleaned using air, steam, water, or mixtures thereof. On account of the very nature of this fuel, BLRBs suffer from various forms of fire-side corrosion, erosion-corrosion, and erosion related problems. The fact remains that black liquor...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080259
EISBN: 978-1-62708-304-1
... that the side and/or rear walls were most vulnerable in a front-fired boiler, while in a tangentially fired boiler, the wastage was invariably highest on the front wall. Bakker and Kung ( Ref 33 ) observed that FeS deposits can significantly increase the corrosion rates of carbon and low-alloy steels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
... failure problems. A boiler (410 °C, or 770 °F, and 5 MPa, or 725 psig steam) at the Issy plant in Paris suffered tube failures in the side wall after only about 5000 h of operation, and the same boiler suffered serious superheater corrosion problems from the start of the operation ( Ref 1 ). In a boiler...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430149
EISBN: 978-1-62708-253-2
... burner adjustment; steam blanketing in horizontal or inclined tubes; and undesired channeling of fire-side gases. Superheater and reheater tubes generally fail after many years of service as a result of creep. Waterwall tubes also can fail from long-term overheating. Apart from a change...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080437
EISBN: 978-1-62708-304-1
...) of the waterwall tube that suffered hydrogen attack in a subcritical coal-fired boiler. Note numerous microcracks and microfissures. Also shown are heavy corrosion scales formed on the tube internal surface. Unetched Fig. 17.3 Optical micrograph showing the formation of microcracks and microfissures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430376
EISBN: 978-1-62708-253-2
... Raja V.S. and Shoji T. , Eds., Stress Corrosion Cracking—Theory and Practice , Woodhead Publishing , 2011 6.28 Colannino J. , Prevent Boiler Tube Failures Part 1: Fire Side Mechanisms , Chemical Engineering Progress , Oct 1993 , p 33 – 36 6.29 Gale G.E...
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 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
... from flue gases caused fire-side corrosion on the OD surface by forming low-melting alkali pyrosulfate compounds. The corrosion was more aggravated at the weld location due to accumulation of alkali pyrosulfate that eventually exposed the internal porosity. Moreover, during operation, flow-induced...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
...) scale and does not consider the effect of fire-side deposition (if any) on the tube wall temperature. Any deposits on the fire side will introduce errors in estimated temperature by this method and in turn in the estimated life of the tube. 8.5.4 Metallographic Analysis Method Creep...