1-20 of 25 Search Results for

waterwall corrosion

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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 November 2007
DOI: 10.31399/asm.tb.htcma.t52080321
EISBN: 978-1-62708-304-1
... furnaces fired with low-grade fuels. This chapter provides an overview of fireside or oil-ash corrosion and the problems it can cause in utility power boilers and petrochemical refinery furnaces. It explains how oil-ash corrosion affects waterwalls, superheaters, and reheaters as well as metal tube...
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 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
... showing slight pitting attack. Micrograph (a) also shows the fusion boundary and substrate steel. (b) Higher-magnification micrograph showing surface corrosion morphology with general metal wastage and no internal dendrite corrosion penetration. Fig. 12.19 Cross section of an overlaid waterwall...
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
... to reveal the overlay. The scale is in inches. 1.0 in. = 25.4 mm. Source: Ref 49 Fig. 10.29 Optical micrograph showing the transverse cross section of Type 312 overlay on the waterwall in a supercritical unit after about 6.5 years of service, revealing essentially no corrosion and no cracking...
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
... resulting in rupture of the steel component during service. There are two sources of hydrogen that contribute to hydrogen attack of steels in industries. One source of hydrogen is from the corrosion of steel by boiler water in the waterwall tube for coal-fired boilers, while the other source of hydrogen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.9781627083041
EISBN: 978-1-62708-304-1
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.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 November 2007
DOI: 10.31399/asm.tb.htcma.t52080359
EISBN: 978-1-62708-304-1
... in Lower Furnace and Superheaters 13.4 Summary 13.3.1 Furnace Floor Tubes 13.3.2 Smelt Spout Openings 13.3.3 Air Port Openings 13.3.4 Waterwalls above “Cut Line” 13.3.5 Superheater Tube Corrosion A brief description of a black liquor recovery boiler along with its fuel and combustion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430087
EISBN: 978-1-62708-253-2
... greater efficiency, as well as greater demand on construction materials. This chapter discusses the primary requirements for boiler tube materials, including oxidation and corrosion resistance, fatigue strength, thermal conductivity, and the ability to resist creep and rupture. It also provides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080379
EISBN: 978-1-62708-304-1
... cause preferential corrosion penetration. As this preferential corrosion penetration grows into the metal interior, it can eventually develop into a crack. One important industrial example involving this phenomenon is the circumferential cracking that occurs on the waterwall tubes of some supercritical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080003
EISBN: 978-1-62708-304-1
... a corrosion-resistant weld overlay instead of replacing it with a new construction. This approach has been adopted in the boiler industry in recent years to address the severe corrosion problems with the waterwalls of boilers in waste-to-energy boilers, coal-fired boilers, basic oxygen furnace hoods in steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
... and deep sharp undercuts in the weld, and fluctuating stresses on account of tube vibrations facilitated the failure in the corrosion fatigue mode. The waterwall tube of a 620 MW boiler leaked in the form of a pinhole near the junction of a weld between the tube and a fin and a butt weld between...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430149
EISBN: 978-1-62708-253-2
...) at fracture edge with scattered fissures in the matrix. The fracture edge is covered with a scale, 200×. Fig. 6.17 Close-up views of the failed screen tube showing (a) thin-lip fish-mouth fracture and (b) bulging and bending of the tube Fig. 6.19 Failed waterwall tube showing thin-lip fish...
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 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
.... 6.145 (a) Unetched micrograph indicating wedge-shaped fine hairline cracks emanating from the surface, 100×. (b) SEM image showing fatigue striations for corrosion fatigue failure, 1000× Though corrosion fatigue can occur at several locations in a boiler including waterwall tubes, reheater...
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
...Abstract Abstract This chapter outlines the topics covered in the book and explains why and to whom the book was written. The book is intended for engineers, metallurgists, and failure analysts who work with materials and components that operate in high-temperature corrosive environments...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
... corrosion Hydrogen damage Pitting (localized corrosion) Stress-corrosion cracking Fire-side corrosion Low temperature Waterwall Coal ash Oil ash Erosion Fly ash Falling slag Sootblower Coal particle Fatigue Vibration Thermal Corrosion Lack of quality...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
... Remaining Life Based on Neubauer and Wedel Classification 8.6.3.4 Remaining Life Based on Scale Thickness 8.6.3.5 Discussion 8.6.3.6 Conclusion 8.6.3.2 Remaining Life Based on the Thinning Rate 8.6.3 Steps in Remaining Life Computation 8.6.3.1 Corrosion Rate Measurement 8.5.6 Remaining...