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Showing 1 to 12 of 12 for “"High Velocity Oxy-Fuel"”.
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Design of experiment analysis of high velocity oxy-fuel coating of hydroxyapatite
Due to the flexibility and cost effectiveness the high velocity oxy-fuel (HVOF) thermal spray process has been widely adopted by many industries. Though there are different types of flame spraying processes, the HVOF thermal spray process utilises only powder as the coating material rather than …
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Effect of high velocity oxy-fuel (HVOF) coatings on fatigue behaviour of carbon steel
Nowadays, the application of high velocity oxy-fuel (HVOF) spraying is widely used in various industries. This is due to its ability to improve the wear, erosion and corrosion resistance of components. However, by taking consideration of mechanical properties and fatigue behaviour into cognisance, …
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Study into mechanical and electrochemical properties of coating deposits and welded-coated components using the HVOF (High Velocity Oxy-Fuel) process.
… mechanical and corrosion properties of High Velocity Oxy-Fuel (HVOF) thermal spray coatings of Inconel 625 powders on plain and welded surfaces of mild carbon and stainless steel (304). The research work carried out focused on coating adherence to base substrate, coating integrity and …
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Design and development of a powder mixing device used in the deposition of high velocity oxy-fuel (HVOF) thermal spray functionally graded coatings; Kabir Al Mamun
… proportions of powders. However the HVOF (High Velocity Oxy-Fuel) process does not possess this feature. FGMs vary in composition and/or microstructure from one boundary (substrate) to another (top service surface), and innovative characteristics result from the gradient from metals to …
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A comparative study on wear and corrosion behaviour of tungsten carbide-nickel (Wc-Ni) and tungsten carbide-cobalt (Wc-Co) high velocity oxy-fuel (HVOF) for carbon steel blade
Nowadays, the demand of high wear and corrosion resistance of the components in various industry is increasing from time to time. Therefore, high velocity oxy-fuel (HVOF) thermal spray was introduced to protect machine components from wear and corrosion, to restore worn components and to improve …
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Charakterizace žárově stříkaného kovokeramického WC-CoCr povlaku na hořčíkové slitině AZ91
… Depozice byla provedena metodou HVOF (High Velocity Oxy-Fuel). Teoretická část je věnována hořčíkovým slitinám se zaměřením na slitinu AZ91. Dále je v teoretické části pojednáno o metodách žárového stříkání, kdy je pozornost věnována především kovokeramickým WC-CoCr povlakům …
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Investigation into laser re-melting of inconel 625 HVOF coating blended with WC
High velocity oxy-fuel (HVOF) spraying of Diamalloy 1005 powders mixed with WC particles onto steel (304) is considered and laser re-melting of the resulting coatings is examined. Laser re-melting process is modeled to determine the melt layer thickness while temperature increase is formulated …
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The effect of bond coat oxidation on the microstructure and endurance of two thermal barrier coating systems
… (EBPVD). The bond coats were applied by either high velocity oxy-fuel spraying (HVOF) or EBPVD. Isothermal oxidation tests were carried out at 950°C, 1050°C and 1150°C for both coating system for up to 3000 hours. Cyclic oxidation testing was conducted at 1150°C in one hour cycles to coating …
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Mechanical and metallurgical properties of two-layered diamalloy 4010 and 2002 HVOF coating
… of the resulting structure is necessary. High Velocity Oxy-Fuel coating of Diamalloy 2002 [(WC12Co)50,Ni33Cr9Fe3.5Si2B2C0.5] powders and Diamalloy 4010 [Fe68Mo30Cr1.8Mn0.2] powders as well as two-layered coatings consisting of these powders was carried out. In the two-layered structure, …
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Microstructural analysis of thermal spray coatings by electron microscopy
Plasma and High Velocity Oxy-Fuel (HVOF) spraying are two of the most common thermal spray processes. In both methods, heated particles are sprayed through a flame (either plasma or oxygen fuelled), before being projected at high velocity towards a substrate. Upon impact they flatten, forming …
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Evaluation of the effects of molten CuCl on corrosion resistant coatings
… vessels and pipes that will encounter the highly corrosive and harsh environment produced by the molten salts at the high temperature of 5000C. This research is done to evaluate corrosion resistant coatings. Different coating materials were tested in high temperature molten copper chloride …
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Modelling of Graphite Elements and Low Enriched Fuel Assemblies for a High Temperature Gas-Cooled Reactor
… Stewart et al. designed a Horizontal Compact High Temperature Gas-cooled Reactor (HC-HTGR), which Boston Atomics is seeking to commercialize. The HC-HTGR leverages the safety advantages of gas- cooled, TRISO fuelled reactors, and the economic advantages of a horizontal compact layout. Graphite …