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high-velocity oxyfuel coating

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Published: 01 January 2005
Fig. 9 Cross section of high-velocity oxyfuel-sprayed coating of nickel alloy 625. Courtesy of TWI, Ltd. More
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Published: 01 January 2003
Fig. 3 Optical micrograph of high-velocity oxyfuel sprayed, Inconel 625 coating in (a) as-sprayed and (b) laser-remelted conditions. Coating thickness is 300 and 400 μm (12 and 16 μin.), respectively. Source: Ref 7 More
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Published: 01 January 2005
Fig. 13 Appearance of high-velocity oxyfuel (HVOF)-sprayed Hastelloy C coatings on steel plates after 3 months in seawater. (a) Coating sprayed by a commercial HVOF. (b) Coating sprayed by the improved HVOF process with a gas shroud More
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005739
EISBN: 978-1-62708-171-9
...Abstract Abstract High-velocity oxyfuel (HVOF)-applied thermal spray coatings are viable candidates for replacement of hard chrome in numerous applications. HVOF thermal spraying can be used to deposit both metal alloy and cermet coatings that are dense and highly adherent to all the commonly...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005734
EISBN: 978-1-62708-171-9
..., plasma spray; OFW, oxyfuel wire spray; HVOF, high-velocity oxyfuel powder spray; OFP, oxyfuel powder spray; HVAF, high-velocity air-fuel powder spray; DG, detonation gun. (b) Contains carbon and forms carbide particles that are not granular, as in the case of cermet coatings Erosive Wear...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005713
EISBN: 978-1-62708-171-9
... known as high-velocity oxyfuel (HVOF) was invented by G.H. Smith, J.F. Pelton, and R.C. Eschenbach (U.S. Patent 2,861,900). The process was initially used only by Union Carbide, with the coatings sold in the 1960s to 1970s on a service basis as Jet Plating coatings. The process was reintroduced...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005718
EISBN: 978-1-62708-171-9
... spray, and extended-arc and other high-energy plasma arc spray, are also considered. cold spray detonation gun system electric arc spraying high-velocity oxyfuel spray plasma arc spraying thermal spray coating COATINGS are engineering solutions to enhance surfaces against wear, corrosion...
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Published: 01 January 2005
Fig. 11 Examples of anodic polarization curves obtained for high-velocity oxyfuel (HVOF)-sprayed coatings of nickel alloy 625 in deaerated artificial seawater solution. Typical processes include DJ, Diamond Jet hybrid; JP, JP5000; TG, TopGun HVOF systems; and HV, high-velocity flame spray system More
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Published: 01 January 2005
Fig. 10 Examples of anodic polarization curves obtained for high-velocity oxyfuel (HVOF)-sprayed coatings of 316L in deaerated artificial seawater solution. Typical processes include DJ, Diamond Jet hybrid (Sulzer Metco); JP, JP5000 (Tafa/Praxair); TG, TopGun HVOF systems (Miller Thermal); and HV More
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Published: 01 January 2005
Fig. 12 Amount of through porosity in high-velocity oxyfuel (HVOF)-sprayed Hastelloy C coatings as a function of coating thickness. Through porosity was evaluated by the dissolution rate of iron ions from the carbon steel substrate. More
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Published: 01 January 2005
Fig. 14 Period to failure (appearance of rusting on the coating surface) for high-velocity oxyfuel (HVOF)-sprayed Hastelloy C coatings on a steel substrate. The HVOF denotes a commercial HVOF; heat treatment was carried out in vacuum at 1050 °C (1920 °F) for 1 h. More
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Published: 01 January 2005
Fig. 2 Material loss in hot erosion and erosion-corrosion tests of 19 materials at 550 °C (1020 °F) by quartz sand/KCl mixture. 1–2, steels; 3–4, diffusion coatings; 5–7, arc-sprayed coatings; 8, combustion arc coating; 9–12, high-velocity oxyfuel (HVOF) coatings; 13, spray and fuse coating; 14 More
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001282
EISBN: 978-1-62708-170-2
...Abstract Abstract This article introduces thermal spray coatings and describes the various types of coating processes and coating devices, including the flame spray, electric-arc spray, plasma spray, transferred plasma arc, high-velocity oxyfuel, and detonation gun. It provides information...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005706
EISBN: 978-1-62708-171-9
...-fed flame spray, wire- or rod-fed flame spray, electric arc spray, plasma arc spray, vacuum plasma spray, high-velocity oxyfuel spray, detonation gun deposition, and cold spray, and their advantages. It provides details on the microstructural characteristics of thermal spray coatings. The article also...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005712
EISBN: 978-1-62708-171-9
...Abstract Abstract This article focuses on coatings and overlays adopted for use as wear- and corrosion-resistant materials in oil sand processing. It describes the most common application processes for oil sand coatings and overlays, including welding, high-velocity oxyfuel thermal spray, laser...
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
... of coating materials and the posttreatment most suitable for a particular environment. Dense barrier-type coatings of various corrosion-resistant alloys can be fabricated using the high-velocity oxyfuel (HVOF) spray processes, but the corrosion resistance of the coating itself in aqueous solutions does...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005743
EISBN: 978-1-62708-171-9
... of protection has been to attach ceramic tiles on the walls, but these have been known to break readily and further contribute to the damage. On-site high-velocity oxyfuel (HVOF) coatings offer alternative coating solutions; WC/Co or WC/Co(Cr) cermet coatings work well as wear-resistant coating solutions...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001462
EISBN: 978-1-62708-173-3
... process (a) Combustion Electrical Arc Plasma Flame HVOF (b) Detonation Direct current Coupled induction Powder X X X … X X Wire X … … X … … Cored wire X … … X … … Ceramic rod X … … … … … (a) X, applicable. (b) High-velocity oxyfuel...
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
... high-velocity oxyfuel (HVOF); however, some applications use plasma or twin wire arc with sealers. Metal oxide ceramics are applied by plasma. Self-fluxing alloys are applied via low-velocity combustion, HVOF, and posttreated to improve the metallurgical bond between substrate and coating for more...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005732
EISBN: 978-1-62708-171-9
... processes: APS, high-velocity oxyfuel (HVOF), twin arc wire, detonation gun, low-velocity oxyfuel (LVOF)-flame, and LVOF-wire/rod. Key differences in processes are related to thermal and kinetic energy. In many cases, processes such as air plasma have been optimized by using vacuum plasma spray/LPPS/air...