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sacrificial metal systems

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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
...: 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 transition...
Image
Published: 01 January 2006
Fig. 10 Schematics of typical coating systems. These include (a) the “as-deposited” pure aluminum or zinc sacrificial metallic coating, without the addition of any organics, applied to SAE 1018 steel; (b) the pure sacrificial coating applied to SAE 1018 steel plus a sealer or conversion coat More
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
... Abstract Cathodic protection (CP) is an electrochemical means of corrosion control widely used in the marine environment. This article discusses two types of CP systems: impressed current systems and sacrificial anode (passive) systems. It describes the anode materials used in these systems...
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
... of the environment Electrical methods of control Selection of corrosion-resistant materials Use of coatings Of the aforementioned, coatings often are chosen by the industry due to the versatility they offer. Historically, coating systems used to protect metallic infrastructure, be it marine- or land...
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
... the oxidation reaction in a galvanic cell is concentrated at the anode, which suppresses corrosion of the cathode in the same cell. Figure 1 shows a simple cathodic protection system. The steel pipeline is cathodically protected by its connection to a sacrificial magnesium anode buried in the same soil...
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
... films, such as mill scale (magnetite, or Fe 3 O 4 ) or iron sulfides on steel, or of lead sulfate on lead. Such films can be cathodic to the base metal exposed at breaks or pores in the scale ( Fig. 1 ) or even to such extraneous items as valves or pumps in a piping system. Fig. 1 Schematic...
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
... the tank is in contact with the soil. This article describes the soil characteristics and addresses cathodic protection (CP) criteria for submerged metallic piping systems. It provides information on the data required for designing a CP system, alone or in conjunction with a protective coating system...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003709
EISBN: 978-1-62708-182-5
... Simplified layouts for cathodic protection systems. (a) Impressed current cathodic protection system (b) Galvanic or sacrificial cathodic protection system Sacrificial CP (SACP)—also known as galvanic CP—protects the structure by coupling the structure to a consumable anode of a more active material...
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
... hand, the metal with the higher corrosion potential undergoes a negative shift in potential, causing it to support additional cathodic reaction and thus to corrode less. The principles of galvanic corrosion can be and often are used as means of corrosion protection. In this case, a sacrificial metal...
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
... grit. (c) Void extending to substrate Sealing and Topcoat A standard practice is to seal the thermal spray coating with low-viscosity sealers because the metal coating is inherently porous. Once the thermal spray sacrificial coatings are applied, the sealer is applied. The sealer is used...
Book Chapter

Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0006541
EISBN: 978-1-62708-183-2
...+paint or resin seal C Cadmium, beryllium Chromate conversion coating+paint or resin seal D Aluminum, Al-Mg, Al-Zn Anodic coating+paint or resin seal E Aluminum-copper Anodic coating+paint or resin seal F Steel, carbon and low alloy Metallic coating, sacrificial (Zn) or nonsacrificial...
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
...-resistant sheet metals, such as electrogalvanized steel, hot dip galvanized steel, and hot dip galvannealed steel, are reviewed. The article provides information on the paint and sealant systems for corrosion control in automotive body applications. automotive body applications corrosion control...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004100
EISBN: 978-1-62708-184-9
..., particularly chlorides, by the availability of moisture in fogs, dew, and precipitation, and by the distance from the sea. Nickel alloys and stainless steels have good corrosion resistance in marine atmospheres. Sacrificial metallic coatings applied by thermal spray, hot dipping, or electroplating can...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002471
EISBN: 978-1-62708-194-8
... paint system may comprise three or more coatings, with the first (primer) coat applied to the clean, grease-free surface. The primer coat provides corrosion suppression due to the presence of, for instance, sacrificial zinc or aluminum metallic particles, or zinc chromate or phosphate inhibitors...
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: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003808
EISBN: 978-1-62708-183-2
... 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 the Sendzimir...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006565
EISBN: 978-1-62708-290-7
... Abstract This article discusses the basic operating principles, industrial applications, and advantages as well as the parameters influencing the process of laser-induced forward transfer (LIFT) of solid materials, liquid materials, laser-absorbing layers, intact structures, and metallic 3D...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003814
EISBN: 978-1-62708-183-2
... (the coatings become sacrificial anodes). In such cases, coating porosity is acceptable, and low-cost/rapid-deposition spray processes can be used. Second, dense coatings of metals and alloys with much higher corrosion resistance than steel (notably titanium and nickel-base) can be used, provided they are dense...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001250
EISBN: 978-1-62708-170-2
... Abstract A tin deposit provides sacrificial protection to copper, nickel, and many other nonferrous metals and alloys. Tin also provides good protection to steel. Tin can be deposited from either alkaline or acid electrolytes. This article explains the compositions and operating conditions...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004121
EISBN: 978-1-62708-184-9
..., reduced maintenance cost, and enhanced appearance ( Ref 3 , p 31). Fig. 5 Corroded metallic doorway at a military installation water treatment plant due to chlorine atmosphere Fig. 6 Close-up of corrosion on doors shown in Fig. 5 Electrical/Mechanical Systems Heating...