1-20 of 210 Search Results for

barrier protection

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... Low-Temperature Hot Corrosion Type 1 Hot Corrosion—Superalloys and Coatings Propagation of Type 1 Hot Corrosion—Model Systems Protective Coating Pros and Cons Coating Comparisons Ductility Thermal Barrier Coating Performance Technology of TBCs Thermal Barrier Coating Systems...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090241
EISBN: 978-1-62708-266-2
...Abstract Abstract Aluminum is protected by a barrier oxide film that, if damaged, reforms immediately in most environments. Despite this inherent corrosion resistance, there are conditions where aluminum alloys, like many materials, are subject to the effects of stress-corrosion cracking (SCC...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870179
EISBN: 978-1-62708-299-0
... corrosion resistance of the coating. Aluminum oxide coating performance ranged from excellent after 33 months of exposure to coating blistering that was extensive enough to expose the substrate after 4 months. Aluminum oxide coatings will provide only barrier protection to the silicon carbide/aluminum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350001
EISBN: 978-1-62708-315-7
... the surface to perform functions that are distinct from those functions demanded from the bulk of the material” ( Ref 1 ). The desired properties or characteristics of surface-engineered components include: Improved corrosion resistance through barrier or sacrificial protection Improved oxidation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030165
EISBN: 978-1-62708-282-2
... and significantly more corrosion-resistant stainless steels. The corrosion resistance of stainless steels is due to the protective nature of the surface oxide film that forms a barrier between the environment and the alloy. The physical and chemical properties of the oxide film and the service environment determine...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350183
EISBN: 978-1-62708-315-7
... in the Encyclopedia of Associations , published by Gale Group Publishing and available at most local public libraries. Corrosion Resistance Corrosion-resistant protective coatings include various organic and inorganic coatings that provide barrier protection (e.g., a paint coating or multilayer electroplate...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030019
EISBN: 978-1-62708-282-2
... protective coating. If inert barrier coatings are employed, both the anode and cathode must be protected—for example, the heads, tubesheets, and tubes (for a distance of the first 4 to 6 tube diameters on the tube side) of a water-cooled heat exchanger. Electrochemical Techniques Electrochemical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460185
EISBN: 978-1-62708-285-3
... MCrAlY coatings (“M” stands for either nickel, cobalt, or a combination of both) on turbine parts. The MCrAlY coating is used as a stand-alone oxidation-protection layer or as a bond coat for the deposition of a ceramic thermal barrier coating. Lack of in-flight oxidation/phase change and deposition...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060369
EISBN: 978-1-62708-261-7
... the transpassive region. It is important to note that during the transition from the active to the passive region, a 10 3 to 10 6 reduction in corrosion rate is usually observed. Passivity is due to the formation of a surface film or protective barrier that is stable over a considerable range of oxidizing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910301
EISBN: 978-1-62708-250-1
... of alloying elements—typically nickel, chromium, and copper—are added to the steel. Under certain fairly specific situations, these alloying elements are incorporated into the oxide layer that forms on the steel, leading to the formation of a dense, more protective oxide. This oxide then serves as a barrier...
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 0.005 to 0.02 wt% are added to brighten the initial coating surface. The effect is related to the formation of a continuous Al 2 O 3 layer on the coating surface that inhibits further oxidation by acting as a protective barrier layer. This effect is also responsible for the reduced atmospheric...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350011
EISBN: 978-1-62708-315-7
... to satisfy the need for corrosion prevention. Special primers are used to provide passivation, galvanic protection, corrosion inhibition, or mechanical or electrical barriers to corrosive action. Corrosion Inhibitors A water-soluble corrosion inhibitor reduces galvanic action by making the metal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... oxidation protection methods are external coatings and internal oxidation inhibitors. Surface coatings, such as silicon carbide, provide an external barrier to oxygen penetration. The addition of internal oxidation inhibitors acts either as an internal barrier to oxygen ingress or as an oxygen sink (forming...
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
..., Testing, and Protection , Vol 13A , ASM Handbook , ASM International , 2003 , p 346 – 366 9. Denhard E. , Effect of Composition and Heat Treatment on the Stress Corrosion Cracking of Austenitic Stainless Steels , Corrosion , Vol 16 ( No. 7 ), 1960 , p 131 – 141 10. Kerlins...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240563
EISBN: 978-1-62708-251-8
... attack and susceptibility to hot corrosion. To protect against local oxidation and hot corrosion, two different types of coatings have been developed: aluminide diffusion coatings and overlay coatings. In recent years, thermal barrier coatings have also been developed to provide substantial reductions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870025
EISBN: 978-1-62708-299-0
... are relative ratings in decreasing order of merit, based on exposures to sodium chloride solution by intermittent spraying or immersion. Alloys with A and B ratings can be used in industrial and seacoast atmospheres without protection. Alloys with C, D, and E ratings generally should be protected, at least...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040084
EISBN: 978-1-62708-428-4
... for industrial applications including wear and corrosion protection, dimensional restorations, and thermal insulation. The materials used in thermal spray coatings include metals, carbides, and ceramics. There are several different commercially available processes to apply thermal spray coatings and newer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900031
EISBN: 978-1-62708-350-8
.... Another often overlooked feature of the nitriding process (even on a plain iron or plain carbon steel) is enhancement of the steel surface corrosion characteristics. By contrast, the corrosion resistance of stainless steels will be reduced, due to breakdown of the surface chrome oxide barrier to enable...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040010
EISBN: 978-1-62708-428-4
... spraying Introduction Thermal spray is a versatile, adaptable, potentially cost-effective technology in which a wide range of metals, ceramics, polymers, and composites can be applied to almost any metal to protect against wear, corrosion, abrasion, high temperature, chemicals, and erosion. It can...