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chemical inhibition

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910363
EISBN: 978-1-62708-250-1
... by three basic mechanisms: barrier protection, chemical inhibition, and galvanic (sacrificial) protection. This chapter begins with a section on organic coating and linings, providing a detailed account of the steps involved in the coating process, namely, design and selection, surface preparation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030349
EISBN: 978-1-62708-282-2
... of an inhibiting oil phase, typically tend to be less corrosive than corresponding natural gas transmission systems that carry water vapor in the gas phase. Under normal operating conditions, gas transmission pipelines carry undersaturated gas processed by upstream dehydrating units. These pipelines are generally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030200
EISBN: 978-1-62708-282-2
... ) and sodium ferrocyanide, were used in early days to inhibit carbon dioxide (CO 2 ) corrosion in oil wells, but the treatment frequency and effectiveness were not satisfactory. This led to the development of many organic chemical formulations that frequently incorporated film-forming amines and their salts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
... and raw materials for chemicals constitute a complex and demanding process where corrosion (in all its many forms) is an inherent hazard. The costs in terms of lost production, the replacement of materials of construction, and the constant personnel involvement in corrosion control are substantial...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030039
EISBN: 978-1-62708-282-2
... forms of material degradation. Engineering structures as diverse as lap joints in aircraft, flanged pipes in chemical-processing plants, metal surfaces under initially protective coatings, and environmentally assisted cracks in metallic materials all have an occluded solution. This similitude...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120123
EISBN: 978-1-62708-269-3
... surfaces. The chapter discusses the factors that influence the growth and quality of this naturally passivating film, particularly the role of oxidizing and inhibiting species, temperature, and alloying elements. It also discusses the effect of different corrosion processes and environments as well...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090271
EISBN: 978-1-62708-266-2
... and referenced. Attention is given to the mechanical and metallurgical factors that have been identified as influencing SCC behavior in each case, and possible mechanisms are discussed. Finally, practical guidelines and strategies for inhibiting and/or preventing titanium alloy SCC are presented. 10.1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030045
EISBN: 978-1-62708-282-2
... influenced corrosion. It ends with some information on the inhibition of corrosion by the action of bacteria. microbiologically influenced corrosion biofilms corrosion prevention corrosion rate A GREAT VARIETY of microscopic organisms (microorganisms) are present in virtually all natural...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870135
EISBN: 978-1-62708-299-0
... cleaners. Some alkaline cleaners cause excessive corrosion and should not be used unless they are inhibited effectively. Aluminum alloys are used in processing, handling, and packaging a wide variety of chemical products ( Ref 58 – 60 ). Aluminum alloys are compatible with dry salts of most inorganic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... of adherend cleanliness, adhesive viscosity, and surface tension. The importance of surface cleanliness cannot be overemphasized; it is one of the cornerstones of successful adhesive bonding. In metals, coupling effects, as a result of chemical etching/anodizing, or other treatments, can also play a role...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780329
EISBN: 978-1-62708-281-5
..., and physical stresses all combine to produce changes in the chemical composition of the material. These changes may take the form of polymer molecular weight reduction due to main-chain cleavage, the formation of cross links, or the formation of oxidized and other functional groups. As the chemical composition...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480331
EISBN: 978-1-62708-318-8
... resistance of titanium in sulfuric acid and all other reducing acids changes dramatically when inhibitors ( Ref 14.1 , 14.2 ), often as inadvertent impurities, are present. Tables 14.6 and 14.7 list the important oxidizing agents and other corrosion-inhibiting compounds, as well as the effects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030215
EISBN: 978-1-62708-282-2
... of poor communication and/or a lack of appreciation of the true service conditions ( Ref 5 ). As an example, a type 316 stainless steel (Unified Numbering System, or UNS, S31600) pipe was considered a suitable choice for admitting steam and subsequently air into a chemical slurry in a reaction vessel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
... to environmental degradation. Most will absorb moisture and exhibit reduced strength and durability at elevated temperature. Some are degraded by chemicals such as paint strippers or other solvents. Despite numerous theories on the nature of adhesion during adhesive bonding, there is some general agreement...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910001
EISBN: 978-1-62708-250-1
... the underlying metal from the corrosive media. Metallic Coatings Inorganic Coatings Inhibitors Just as some chemical species (e.g., salt) promote corrosion, other chemical species inhibit corrosion. Chromates, silicates, and organic amines are common inhibitors. The mechanisms of inhibition can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350011
EISBN: 978-1-62708-315-7
... and identifies metals likely to be affected. It also discusses the selection and use of protective coatings and the tests that have been developed to measure their effectiveness. corrosion control corrosion testing electrochemical corrosion CORROSION of metal is a chemical or electrochemical process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
...Corrosion factors that can influence design considerations Table 1 Corrosion factors that can influence design considerations Type Factor Environment Natural Chemical Storage/transit Stress Residual stress from fabrication Operating stress—static, variable, alternating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090043
EISBN: 978-1-62708-266-2
... stress-corrosion cracking STRESS-CORROSION CRACKING (SCC) of carbon and low-alloy steels is a significant problem for a variety of industries, such as those dealing with power generation (including nuclear), oil and gas production, refining/processing and pipeline transmission, chemical processing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
... of weld overlays, thermal spraying, and various deposition technologies. ceramic coating chemical vapor deposition cladding corrosion resistance electroless plating electroplating hot dip metallic coating physical vapor deposition thermal spraying weld overlays THE SURFACE-ENGINEERING...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030209
EISBN: 978-1-62708-282-2
... to the complexities of the multiphase system ( Ref 3 ). Catalytic and Thermal Cracking Units Catalytic and thermal cracking units such as fluid catalytic cracking units (FCCU) and delayed coking units typically require corrosion-inhibition applications. In these units, considerable amounts of hydrocarbon...