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oxidation-resistant coatings

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000001
EISBN: 978-1-62708-313-3
.... Diffusion coatings were the first to be developed in which large amounts of principally aluminum were diffused into the surface of the substrate superalloy. These coatings proved to be highly successful because their increased oxidation and corrosion resistance permitted turbine inlet temperatures up...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240583
EISBN: 978-1-62708-251-8
..., and relatively low thermal expansions compared to other metals. Unfortunately, despite their high-temperature resistance, all of them oxidize severely at relatively low temperatures and therefore require oxidation-resistant coatings for elevated-temperature use. Protective coating systems have been developed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... at temperatures as low as 950 °F (510 °C). Therefore, C-C composites for elevated-temperature applications must be protected with oxidation-resistant coating systems, such as silicon carbide that is overcoated with glass. The silicon carbide coating provides the basic protection, while the glass overcoat melts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550569
EISBN: 978-1-62708-307-2
... of their thermal and chemical stability and their compatibility with most of the common reinforcement materials. Nonoxide-matrix materials tend to have superior structural properties to their oxide counterparts, and they have better corrosion resistance in some environments. However, they are sensitive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... to normal operating temperatures. Even if prolonged exposure to overtemperature does not result in mechanical failure, it frequently will cause excessive surface corrosion. This, in turn, can reduce the strength of the alloy. Even if an alloy is coated for oxidation resistance, the coating will be degraded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550299
EISBN: 978-1-62708-307-2
... the oxidation resistance of γ aluminides, two areas are being explored: alloy development and the development of improved protective coatings. Ternary and higher-order alloying additions can reduce the rate of oxidation of γ alloys. Of particular benefit are small (1 to 4%) ternary additions of tungsten...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
... coatings, ship bottom paints, swimming pool paints, chemical process equipment Epoxy Solvent, waterborne, powder Air dry, bake Excellent adhesion, chemical resistance, flexibility, abrasion resistance, hardness Rapid chalking on exterior exposure, poor resistance to oxidizing acids, yellows...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550001
EISBN: 978-1-62708-307-2
... many outstanding attributes that lead to a wide range of applications, including: Good corrosion and oxidation resistance High electrical and thermal conductivities Low density High reflectivity High ductility and reasonably high strength Relatively low cost Potential...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... discusses protective coatings, including aluminide diffusion, overlay, and thermal barrier types, and how they perform in different environments based on their ability to tolerate strain. coatings corrosion resistance corrosion testing hot corrosion superalloys Overview Oxidation/Corrosion...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
... in the formation of an iron-aluminum intermetallic compound that resists oxidation at temperatures up to approximately 800 °C (1500 °F). Aluminized steel is often used where heat resistance is required—for example, in automotive exhaust systems. Hot dip lead coatings are sometimes used on steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350001
EISBN: 978-1-62708-315-7
... Black oxide chemical conversion coatings Used for decorative applications, e.g., the “bluing” on steel gun barrels Anodizing (electrochemical conversion coating) Used primarily for aluminum for increased corrosion resistance, improved decorative appearance, increased abrasion resistance (hard...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350095
EISBN: 978-1-62708-315-7
..., including nickel- and cobalt-base superalloys, and carbon, low-alloy, and stainless steels. Simple aluminide coatings resist high-temperature oxidation by the formation of an alumina protective layer and can be used up to about 1150 °C (2100 °F), but the coating can degrade by spallation of the oxide during...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350195
EISBN: 978-1-62708-315-7
... or grease soaking. For parts under high loading, and that are traditionally made of high-strength engineering steels, there is usually no easy way to reduce the corrosive contribution to the wear process. The best approach is to increase the surface hardness so that it can resist the abrasion by the oxide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910237
EISBN: 978-1-62708-250-1
... coatings for improved high-temperature oxidation resistance Each of these coating methods is described in Chapter 9 . Inhibitors Inhibitors find their major uses in acid-pickling solutions, acidic service environments, steam systems, and neutral and near-neutral aqueous solutions. Inhibitors...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240323
EISBN: 978-1-62708-251-8
... defect-free barrier coatings; reducing the aggressiveness of the environment, for example, chloride ion concentrations, temperature, acidity, and oxidizing agents; using more resistant metals, for example, using molybdenum-containing (4 to 6% Mo) stainless steels or Mo-W-Ni-base alloys; using corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
... Peroxide oxidant coating Does not meet salt spray requirement  Poor adhesion  Unstable chemical baths Oxyanion analogs (molybdates, tungstates, vanadates, and permanganates) Moderate corrosion resistance  Poor paint adhesion  Molybdates with borate seem best  Expensive Potassium permanganate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030165
EISBN: 978-1-62708-282-2
.... corrosion protection cathodic protection corrosion behavior galvanic couples coatings corrosion inhibitors CORROSION is an oxidation reaction where the corroding metal is the anode in an electrochemical cell. In addition to the anode, there are three other components that are necessary...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460185
EISBN: 978-1-62708-285-3
... M.D. , Fossati A. , Lavacchi A. , Bardi U. , Bargioli F. , Borri C. , Giolli C. , and Scrivani A. , Isothermal Oxidation Resistance Comparison between Air Plasma Sprayed, Vacuum Plasma Sprayed and High Velocity Oxygen Fuel Sprayed CoNiCrAlY Bond Coats , Surf...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080235
EISBN: 978-1-62708-304-1
... for resisting erosion-corrosion attack. The data also suggest that aluminized coatings are capable of reducing erosion-corrosion rates in oxidizing environments. Hardness has often been used as an important material property in resisting wear. Limited laboratory data generated so far have failed to provide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.9781627083157
EISBN: 978-1-62708-315-7