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overlay coatings

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Published: 01 March 2001
Fig. 8 Volume steady-state erosion rates of weld-overlay coatings at 400 °C (750 °F) as a function of average microhardness at 400 °C (90° impact angle; alumina erodent). Source: Ref 45 More
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Published: 01 March 2002
Fig. 13.19 Typical MCrAlY overlay coating. Gray phase is CoAl or NiAl dispersed in white nickel or cobalt solid solution More
Image
Published: 01 March 2002
Fig. 13.25 Ductility of several MCrAlY overlay coating compositions showing role of cobalt and chromium on ductility. Also, the figure shows the relative ductility of NiCrAlY and CoCrAlY coatings. More
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Published: 01 March 2002
Fig. 13.20 Ductility of CoCrAlY overlay and standard diffused aluminide coatings showing ductility improvements possible with appropriate overlay compositions More
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
..., and secondary fabrication processes. It also covers coating technology, including aluminide diffusion and overlay coatings, and addresses the advantages and disadvantages of superalloys in various applications. cast nickel-based superalloys wrought nickel alloys wrought cobalt-based superalloys cast...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... 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 Introduction Elevated...
Image
Published: 01 June 1985
Fig. 4-35. Tooth bending impact with stress-coat overlay, showing fracture path short-circuiting the usual stress flow-lines. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
... 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 METHODS...
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
... Abstract This chapter covers a wide range of finishing and coating operations, including cleaning, honing, polishing and buffing, and lapping. It discusses the use of rust-preventative compounds, conversion coatings, and plating metals as well as weld overlay, thermal spray, and ceramic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080259
EISBN: 978-1-62708-304-1
... that most of the coal ash is captured to form a molten slag that coats the inside surface of the Cyclone barrels ( Ref 1 ). The combustion flue gas from the Cyclone barrels then enters the main furnace to generate steam. Stoker-firing boilers are very versatile for burning a wide range of solid fuels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080003
EISBN: 978-1-62708-304-1
.... The coatings used involve aluminide coatings, overlay MCrAlY coatings by vapor deposition processes (e.g., electron beam physical vapor deposition), and ceramic thermal barrier coatings (e.g., stabilized ZrO 2 ). Coatings are considered sacrificial and are to be replaced periodically. ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
... of all the coating material in preparation for overlay welding with alloy 625 later was found to be an arduous and time-consuming operation ( Ref 7 ). 12.6 Corrosion Protection for Superheaters Metal temperatures for superheater tubes can be 370 to 480 °C (700 to 900 °F) or higher...
Image
Published: 01 November 2007
Fig. 10.92 Spallation of the thermal sprayed coating on the bottom surface of the test tube sample after exposure for 14,021 h as part of the in-bed evaporator tubes in a 130 MW(e) bubbling fluidized-bed boiler. The coating was applied to alloy 625 overlay, which acted as a butter layer More
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
... Table 14 Compares the characteristics of various weld overlay coatings Table 15 Compares the applications of thermal spraying, welding, and electroplating Table 16 Compares the process requirements in thermal spraying, welding, and electroplating Table 17 Compares the design...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200369
EISBN: 978-1-62708-354-6
... Abstract This chapter covers the basics of weldability of cast steels such as carbon and low alloy steels, corrosion-resistant high alloy steels, nickel-base alloys, heat-resistant high alloy steels, and wear-resistant high austenitic manganese steels. It provides an overview of weld overlay...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
...-modified corrosion. Aluminide diffusion coatings were applied with increasing frequency, and MCrAlY-type (where M = metal such as Fe, Ni, Co or combinations thereof) overlay coatings were developed for commercial use. Substantial increases in life at engine operating temperatures and the minimization...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.9781627083041
EISBN: 978-1-62708-304-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460277
EISBN: 978-1-62708-285-3
..., the new-make product has undergone upgrades in design and therefore proves to be very expensive to replace. The best alternative is an overlay coating that can provide the product upgrade with superior properties and with no major detriment to the substrate properties, via the cold spray technique...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.9781627082679
EISBN: 978-1-62708-267-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350001
EISBN: 978-1-62708-315-7
... Abstract This chapter begins with a brief review of the different types of surface treatments and coatings used in industry and their effect on properties and performance. It then discusses the importance of corrosion and wear treatments and the consequences of failing to properly implement...