Abstract
Atmospheric plasma spraying method (APS), is one of most utilised methods for deposition of layers with different thickness on surfaces with different degrees of complexity. In this paper is shown the innovative character of this method, given by the wide range of powders that can be used, both pure and in various combinations, experimental determined (ex: Al alloys and oxides, Si or W carbides, Ni-Cr-Ti alloys which can compose carbides or nitrides, intermetallic compounds, ceramic materials with B or Si oxides or nitrides, borides or carbides). There are presented the substrates and chemical composition of the powders used for turbine blades highly stressed of wear and corrosion. The samples studied in this paper were obtained by thermal spray using an atmospheric plasma spray installation SPRAYWIZARD - 9MCE. To highlight results were performed some optical microscopy analyses using the inversed metallographic microscope LEICA DMI5000 M and SEM (Scanning Electron Microscopy) analyses using a Quanta 200 3D Microscope Dual Beam. Key words: plasma spray, deposition method
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