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The development of high velocity oxygen-fuel (HVOF) process shows a clear trend toward the design of a new gun in which high pressure and large power are expected in order to obtain a stable flame and a high powder feed rate for industrial applications. In this work, a new HVOF gun, AMT-200, was used to prepare NiCrAlY coatings. The influences of thermal treatment and spraying parameters, i.e. oxygen/fuel...
Because the microstructure and physical properties of a thermally sprayed coating are determined by the dynamics of the particles interacting with the spray jet, different processes were tested in order to explore the effects of process variables to particle characteristics and to coating quality. The NiCrBSi powder was sprayed successively with plasma, flame and HVOF process. Standard parameters...
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