THE EFFECT OF ADDITION OF NANODISPERSED COMPOUNDS OXIDES ON WEAR AND CORROSION RESISTANCE OF PLASMA SPRAYING COATINGS
Journal Title: Проблеми тертя та зношування - Year 2017, Vol 74, Issue
Abstract
Improving of the reliability of modern technology, cost reduction of its operation, as well as service life extension of the equipment, is an actual task for many engineering technologies. Application of protective coating technologies, including thermal spray processes, take the most significant place in the solution of this problem now. At the present stage, addition of nanocomponents to powder for spraying is considered as one of the most effective ways to improve working properties of sprayed coatings. The different types of nanopowders of oxides, carbides, nitrides of metals are among perspective for practical use. Experimental studies of wear resistance and corrosion resistance, microhardness of plasma coverings on the basis of the self-fluxing powder ПГ-СР2 with addition in its composition of nanodisperse powder of oxide of aluminum and ceramic powder of oxide aluminum with an additive of nanodisperse powder of titanium dioxide, were conducted. It is established that addition of nanodisperse oxide of aluminum in composition of self-fluxing powder of the ПГ- СР2 brand happens increase of wear resistance and microhardness of the plasma raised dust coverings, and addition of the nanodisperse modifier of titanium dioxide in composition of the ceramic powder Al2O3 is resulted by increase of microhardness and corrosion resistance of plasma coverings.
Authors and Affiliations
I. V. SMIRNOV, A. V. СHORNIY, V. K. FURMAN, N. A. DOLGOV
Keywords
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