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water-side corrosion

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... maintenance is essential for maintaining the protective magnetite film on the ID side of the tube. However, if the concentration of the caustic or alkaline salt exceeds its threshold limit, it leads to corrosion ( Ref 6.15 ). In thermal power plants, as a part of the boiler water treatment program, sodium...
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 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...
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
... of coarse ratchet marks and an oxidized layer on the crack surface. It also pointed toward crack initiation from the OD side ( Fig. 6.142 ). The crack features were camouflaged by erosion marks, presumably caused by a water jet after the failure. In order to find any surface defects or auxiliary...
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
..., particularly the crown location of the tube on the fireside (i.e., the side facing the combustion), are subject to extreme radiant heat from the combustion. The tube wall exhibits temperature gradient across the tube wall thickness. The outer metal temperature depends on the temperature of the water...
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
... and water vapor can occur on fly ash particles if the flue gas temperature is below the acid dew point. In such a situation, the fly ash particles act as preferred sites for the condensation of both moisture and acid, especially during shutdown cycles. Fire-side corrosion can also occur at locations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
... in Fig. 6.153(b) . Buildup of scales on the water side of a boiler is an inevitable process that takes place progressively over a period of time. Deposition and scale formation occur even if the best possible measures are taken to control the chemistry of the BFW and the condensate. The scale so...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
..., as a result of natural weathering or superficial corrosion. The acceptability of this appearance is governed by the desires of the user, the service for which the metal is intended, and the type of finish that was initially applied. In industrial roofing and siding sheet, bridge railings, lighting standards...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
... 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 corrosion Low temperature Waterwall Coal...
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
... is governed by the type of erodent (solid or liquid), its velocity and impingement angle, the nature of the impacted surface in terms of its hardness, and abrasion or wear resistance. Erosion failure of boiler tubes can occur from the water or steam side, or from the fire side. The principal types of fire...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910363
EISBN: 978-1-62708-250-1
... corrosion resistance is required Window guides, wiper blade frames, radio speaker baskets, head rest supports Electroplated zinc coated Continuously electroplated zinc. Two-side coatings can be equal or differential, to a practical minimum of 200 g/m 2 total coating. One-side product has a standard...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870161
EISBN: 978-1-62708-299-0
..., it becomes anodic to the remainder of the weldment in the presence of water or other electrolytes ( Ref 1 ). The corrosion (or solution) potentials across the weld zone for a 5 xxx , 2 xxx , and 7 xxx series weldment are shown in Fig. 1 . These differences in potential can lead to localized corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030023
EISBN: 978-1-62708-282-2
... resistance, such as a buried metal pipe, some other metal structure, or an electrolyte with low resistance such as salt water. The current then flows to and from that structure and causes accelerated corrosion whenever it leaves a metallic structure and flows into an electrolyte. For example...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630211
EISBN: 978-1-62708-270-9
... system of an automotive engine may contain such dissimilar metals as gray cast iron, aluminum, copper, brass, tin-lead solder, and steel. The antifreezes periodically should be drained and replaced, as the inhibitors tend to become less effective with time. Plain water lacks the necessary corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030209
EISBN: 978-1-62708-282-2
... or no adverse side effects. These side effects include the formation of corrosive salts in areas where there are a limited amount of water and poor water-solubility characteristics of the neutralizer or its salts. The appropriate neutralizer formulation must be selected based on process conditions and stream...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430343
EISBN: 978-1-62708-253-2
... in the water to form carbonic acid, with a range of pH from 6.9 to as low as 4.5. Additionally, raw water contains impurities such as dissolved solids comprising compounds of calcium, magnesium, and silica, which precipitate at high temperatures, forming a coating, popularly termed a scale , on the ID side...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
.... , Fire-Side Corrosion in Refuse-Fired Boilers , Mater. Perform. , May 1988 , p 20 15. Singer J.G. , Ed., Combustion Fossil Power , 4th ed. , Combustion Engineering, Inc. , Windsor, CT , 1991 16. Wright I.G. , Krause H.H. , and Dooley R.B. , A Review...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030074
EISBN: 978-1-62708-282-2
... A.R. , Olberg T. , and Nestell J. , Primary Side Stress-Corrosion Cracking , Steam Generator Reference Book , Electric Power Research Institute , 1985 , p 7–1 to 7–26 28. Paine J.P.N. , Oldberg T. , Marlow R. , and Brown S. , Tube Intergranular Attack...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090135
EISBN: 978-1-62708-266-2
.... and Gorman J.A. , Quantitative Assessment of Submodes of Stress Corrosion Cracking on the Secondary Side of Steam Generator Tubing in Pressurized Water Reactors: Part 1 , Corrosion , Vol 59 ( No. 11 ) 2003 , p 931 – 994 10.5006/1.3277522 5.92 Staehle R.W. and Gorman J.A...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940023
EISBN: 978-1-62708-302-7
... occurring at each electrode, accounting for different variables, mechanisms, and electrochemical effects. The chapter concludes with an in-depth review of Pourbaix diagrams, explaining what they reveal about the stability of metal-water systems and the formation of corrosion products. electrochemical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
... H 2 S Service (June 2002) API 939D Stress Corrosion Cracking in Fuel Grade Ethanol: Review and Survey (September 2003) API 944 1972 Survey of Materials Experience and Corrosion Problems in Sour Water Strippers API 946 The Effect of Outgassing Cycles on the Hydrogen Content...