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sacrificial coating

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Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005709
EISBN: 978-1-62708-171-9
... or sacrificial coatings. It describes the factors affecting the performance of sacrificial TSCs in atmospheric and immersion environments. The article provides information on the applications of sacrificial TSCs, non-sacrificial coatings, and sealants/top coats, and exemplifies the use of sacrificial TSCs...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003832
EISBN: 978-1-62708-183-2
...Abstract Abstract This article provides a general technical description of thermal spray coatings used for corrosion protection in atmospheric and aqueous environments. It further discusses two basic coating approaches of corrosion protection, namely, the sacrificial coating of thermal spray...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004107
EISBN: 978-1-62708-184-9
...Abstract Abstract A sacrificial coating applied to a steel substrate can add 20 years or more of life to the substrate, depending on its thickness and composition. Different techniques to apply sacrificial coatings offer various characteristics that contribute to corrosion resistance...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003808
EISBN: 978-1-62708-183-2
...Abstract Abstract From the standpoint of corrosion protection of iron and steel, metallic coatings can be classified into two types: noble coatings and sacrificial coatings. This article focuses on hotdipped zinc, aluminum, zinc-aluminum alloy and aluminum-zinc alloy coatings. It discusses...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006049
EISBN: 978-1-62708-172-6
...Abstract Abstract The use of zinc in corrosion-protective coatings is due to its higher galvanic activity relative to that of steel. Pure zinc dust provides the best sacrificial protection to steel in a galvanic couple. Zinc-rich coatings can be subcategorized according to the type of binder...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001322
EISBN: 978-1-62708-170-2
... of the replacement coatings sacrificially corrode to protect the substrate, so coating thickness exerts a significant influence on coating service life. In general, thicker sacrificial coatings contain more metal (i.e., greater coating weight) and will sacrificially corrode to protect the substrate steel...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004162
EISBN: 978-1-62708-184-9
... automobile bodies are relatively straightforward to identify or characterize. Steel, with zinc and zinc alloys applied as sacrificial coatings, currently is the predominant metallic material for automotive body panels and structures. Aluminum, stainless steel, metallic and metallic-coated fasteners...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003607
EISBN: 978-1-62708-182-5
... in a piping system. Fig. 1 Schematic showing how breaks in mill scale (Fe 3 O 4 ) can lead to galvanic corrosion of steel Metallic Coatings Two types of metallic coatings are used in engineering design: noble metal coatings and sacrificial metal coatings. Noble metal coatings are used...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004166
EISBN: 978-1-62708-184-9
... to isolate steel from aluminum, thereby eliminating electrical contact. An example of such a system is shown in Fig. 4 . The choice of the fastener protection material is critical. There are a number of sacrificial coatings that provide excellent protection against galvanic corrosion effects between...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003833
EISBN: 978-1-62708-183-2
... (0.05 mil) thick. Parts that are plated with less than this amount are referred to as decorative applications. Electroplated chromium protects substrates by acting as a barrier coating as opposed to a sacrificial coating, such as zinc. Chromium is more electrochemically active than steel; however...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004126
EISBN: 978-1-62708-184-9
... the coating is anodic or cathodic to the base metal. Of the electroplated coatings, only zinc and cadmium are anodic (sacrificial) to steel. The other electroplated coatings must be thick enough to create a barrier to chemical reactants to provide any level of corrosion resistance to the substrate metal...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005735
EISBN: 978-1-62708-171-9
... for Marine- and Land-Based Infrastructure Applications” in this Volume, discusses galvanic cells and the difference between noble and sacrificial coatings. Coatings of interest to process industries are noble relative to the substrate. The galvanic couple formed by the contact of both the ferrous substrate...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004122
EISBN: 978-1-62708-184-9
... costs (LCC) to optimize service and performance. Supplemental Corrosion Protection Supplemental corrosion protection improves the corrosion resistance of a material. These methods can include: Galvanizing of steel Plating of metals Sacrificial coatings Organic coatings Each...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004109
EISBN: 978-1-62708-184-9
... of the electrolyte (freshwater, concrete) makes sacrificial anodes impractical. Cathodic Protection of Marine Pipelines Corrosion control of marine pipelines is usually achieved through the use of protective coatings and supplemental CP. A variety of organic protective coatings can be used. They are usually...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003697
EISBN: 978-1-62708-182-5
... will be in the soil zone, 8 ft in the submerged zone, 3 ft in the tidal zone, and 5 ft in the atmospheric/splash zone ( Fig. 21 ). Fig. 21 Example 1 . Outline of pier protected with a protective coating and sacrificial anodes The pier is located in a calm saltwater bay. The water is not badly polluted...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006035
EISBN: 978-1-62708-172-6
... steel also prevent the corrosion of steel substrates. This phenomenon is referred to as sacrificial protection. Level I, II, and III coatings and linings within the nuclear plant may be exposed to a variety of chemicals. In the case of Level I coatings, a LOCA event would trigger the activation...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004113
EISBN: 978-1-62708-184-9
..., are frequently protected with compatible coatings and ICCP. Consumption of sacrificial anodes could result in contamination of the water. The use of inhibitors with water systems is discussed in “Corrosion Inhibitors in the Water Treatment Industry” in Volume 13A. Crude oil storage tanks are frequently...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003672
EISBN: 978-1-62708-182-5
...Abstract Abstract This article discusses the factors affecting corrosion behavior. It describes galvanic corrosion and its protection methods. The article also provides information on coatings and inhibitors, which are used in corrosion protection. corrosion galvanic corrosion coatings...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003834
EISBN: 978-1-62708-183-2
... control: noble metal clad systems, corrosion barrier systems, sacrificial metal systems, transition metal systems, complex multilayer systems, and clad diffusion alloys. cladding corrosion control sacrificial metal systems clad metals noble metal clad systems corrosion barrier systems...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006050
EISBN: 978-1-62708-172-6
.... Antigraffiti coatings consist of either clear sacrificial materials or permanent coatings. Graffiti coatings are used on interior and exterior painted or unpainted surfaces. Sacrificial coatings include acrylic and wax-based materials that are removed by pressure washing, taking the graffiti with it. After...