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Boiler plate

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430343
EISBN: 978-1-62708-253-2
... Abstract This chapter examines boiler tube failures attributed to operation-related causes. It discusses failures due to rapid start-ups, excessive load swing, excessive heat inputs, poor water chemistry control, and water-treatment methods. boiler tubes operation-related failures water...
Image
Published: 01 November 2007
Fig. 10.39 Scanning electron micrograph (a) showing a very early stage of the circumferential grooving formed in alloy 625 overlay on a waterwall tube in the same supercritical boiler, as shown in Fig. 10.38 . EDX spectra (b) and (c) show the alloying elements associated with the ″light More
Image
Published: 01 December 1989
Fig. 5.25. Above: Graph showing results of creep-rupture tests on 1Cr-½Mo steel after removal from boiler tubes (tests at 510 °C, or 950 °F). Below: Micrographs showing stages of spheroidization present in samples at beginning of test ( Ref 45 ). Stage A (top left): Ferrite and very fine More
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.t52430409
EISBN: 978-1-62708-253-2
... According to ASME Boiler and Pressure Vessel Code—2017, boiler tubes are subjected to flattening tests by applying compressive loads between two parallel plates. A tube should not develop any cracks or breaks until the distance between the plates is less than a certain specified value per the standard...
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
... section is enclosed with water-cooled tubes with a narrow plate (commonly referred to as a “membrane”) connected between two adjacent tubes. When the furnace is heated, the water under high pressure inside these water-cooled tubes (also referred to as waterwalls) is converted to steam. Some boilers use...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
... Abstract Managing corrosion continues to be a challenge for operators of modern boilers worldwide. This chapter addresses the corrosion-related problems that can occur in boilers burning municipal solid waste (MSW). It describes corrosion mechanisms associated with different environments...
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 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
... Abstract This chapter covers the failure modes and mechanisms associated with boiler components and the tools and techniques used to assess damages and predict remaining component life. It begins with a review of the design and operation of a utility boiler and the materials used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... Abstract This chapter discusses the effects of corrosion on boiler tube surfaces exposed to water and steam. It describes the process of corrosion, the formation of scale, and the oxides of iron from which it forms. It addresses the primary types of corrosion found in boiler environments...
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.t52430107
EISBN: 978-1-62708-253-2
... Abstract This chapter describes some of the most effective tools for investigating boiler tube failures, including scanning electron microscopy, optical emission spectroscopy, atomic absorption spectroscopy, x-ray fluorescence spectroscopy, x-ray diffraction, and x-ray photoelectron...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080379
EISBN: 978-1-62708-304-1
... on the waterwall tubes of supercritical coal-fired boilers fired under low NOx combustion conditions, conducive to the production of sulfidizing environments. In the other case, stress contributes to brittle fracture in the form of intergranular cracking. The phenomenon, which is known by various names, typically...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490001
EISBN: 978-1-62708-340-9
..., or combustion gases — leading to the resulting classification of turbines as wind turbines, hydroelectric turbines, steam turbines, and combustion turbines. Of these, the most common is the steam turbine, which employs steam produced from burning fossil fuels in a boiler or from the heat produced by atomic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430027
EISBN: 978-1-62708-253-2
... of diffusion, nucleation, and growth. It also discusses alloying, heat treating, and defect formation and briefly covers condenser tube materials. alloying elements austenitic stainless steels boiler tubes condenser tubes continuous cooling transformation diagram creep-resistant steels ferritic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.9781627083409
EISBN: 978-1-62708-340-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030089
EISBN: 978-1-62708-282-2
... in these systems are now being postweld stress relieved. Corrosion of Welds in Carbon Steel Deaerator Tanks Deaerator tanks, the vessels that control free oxygen and other dissolved gases to acceptable levels in boiler feedwater, are subject to a great deal of corrosion and cracking. Several years ago...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060175
EISBN: 978-1-62708-261-7
..., seamless tubes, and boiler plate. For heat-treating purposes, they are commonly known as carburizing or case-hardening grades. An increase in carbon content of the base steel results in greater core hardness for a given quench. An increase in manganese improves the hardenability of both the core...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200233
EISBN: 978-1-62708-354-6
..., A217, A389, and A487, the toughness (impact test) requirement of A703 may be used based upon agreement between the producer and the user. The ASME Boiler and Pressure Vessel Code requires impact testing for almost all pressure vessel applications in their Section VIII “Pressure Vessel” category...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400001
EISBN: 978-1-62708-258-7
... Society for Testing and Materials (ASTM) System Another system was devised by ASTM. This system is not based on composition but on the steel product and application, for example, railroad rails, boiler tubes, plate, and bolts. ASTM has devised a system of specifications that contain composition...