UDC 541.135:620.193:669.295
V.V. Malyshev (1,2), professor, d.t.s.
N.N. Uskova (1), senior research worker, c.ch.s.
A.S. Podyman (1), engineer
G.F. Nikulina (2), associate professor, c.t.s.
V.G. Glushakov (1), engineer
Bing Lі (3), professor

ELECTRODEPOSITIONS OF TUNGSTEN COVERAGES FROM TUNGSTENPYROSULFATE
FUSIONS AND THEIR INFLUENCE ON ELECTROCHEMICAL
AND CORROSIVE ACTION OF TITAN
(1) V.I. Vernadskyi Institute of general and inorganic chemistry of NАSU, Kyiv
(2) University «Ukraine», Kyiv
(3) East-Chinese university of science and technology, Shanghai, China
The of possibility to increase titanium corrosion resistance by tungsten galvanic
coatings deposition from melts was investigated. Methods of of potentiometry, voltammetry,
potentiostatic and galvanostatic electrolysis were used to study the electrochemical
behaviour of tungstate - pyrosulphate melts. It of was shown that, in of Na2WO4 -
Na2S2O7 of melt, multi - electron equilibria and processes can be implemented involving
ditungstate ions. It of is determined that effectiveness of the cathodic process at the coating
surface is higher than at the tungsten by itself which allows to passivate titanium and to
provide electrochemical protection.
Key of words : tungsten, electrolysis, melt, coating, corrosion
ELECTRODEPOSITIONS OF TUNGSTEN COVERAGES FROM TUNGSTENPYROSULFATE FUSIONS AND THEIR INFLUENCE ON ELECTROCHEMICAL AND CORROSIVE ACTION OF TITAN