Purpose of the development: Technology for creating wear-and corrosion-resistant coatings on Al, Mg, Ti, Zr, Ta and their alloys designed to protect components and mechanisms and applies in particular to the paper feed rollers, fixing wedges turbine generators, ski bindings, detail Nita broaching mechanisms detail fittings , the details of the rotary engine, separators tablets nonmagnetic parts of gas meters, heat and water, the plasma torch nozzle, details of printing equipment, etc.

Recommended application field: Engineering.

Advantages over analogues: Corrosion resistance of the oxide-ceramic coatings on 1-3 orders of magnitude higher compared to the initial alloys (except titanium ) . Furthermore , they are insulators or semiconductors with a large band gap and therefore have good insulating properties . A characteristic feature of PEO coatings is penetrating residual porosity. While , in terms of boundary friction , pores may facilitate retention of the oil , which reduces the friction coefficient and wear amount in corrosive environments during continuous operation through pores can lead to corrosion of the base metal and coating delamination . By operating properties oxide- layers on Al, Mg, Ti, Zr, Ta alloys have significant advantage based coating Al [ 2], D [ 3]. Spraying thermal coatings of aluminum alloys and titanium alloys, magnesium , followed by treatment with PEO- oxide-ceramic coating allows to obtain the properties at the level of PEO coatings on aluminum alloys . Using this integrated approach allows you to create oxide-ceramic coatings on other alloys , which are not amenable PEO- processing , such as steels and irons .

The development stage readiness: Ready for application

Description of the development:
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PEO- oxide- coating today implemented in Al, Mg, Ti, Zr, Ta and their alloys. Ustanovlenі electrophysical parameters of processes in various classes of electrolytes has been studied correlation between the voltage , current density, chemical composition and thickness of technological electrolytes and hardness of the coatings obtained . For some alloys and electrolytes known kinetic dependence of coating thickness increase over time, which allows the synthesis of a given coating thickness. Physico- chemical basis for the process of oxidation plazmoelektrolitnogo are gas-phase reactions in the metal- electrolyte , which are implemented in a plasma spark discharge channels under electrical breakdown near the electrode gap and the primary natural oxide film. Low electrical discharges in the plasma during the synthesis of oxide-ceramic structures Al, Mg, Zr reaches (6-10 ) at 103 K. The obtained aluminum alloy coating thickness of 500 microns with a microhardness of 12-25 GPa ; on magnesium alloys - up to 250 microns thick microhardness 8-12 GPa ; on titanium - 100 microns and 6-10 GPa ; Zirconium - 250 microns and 8-12 GPa.

Information about newness of the development:

ноу-хау--
1 шт.

corresponds technical description
Ready for implementation

Possibility of transfer abroad:
Licence's sale
Technological document's sale

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Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua