Changes in the surface properties of titanium alloy VT20 in the chemical removal of operational carbon pollution

Nochovnaya N.A., Nikitin Ya.Yu., Grigorenko V.B., Kozlov I.A.
UDC
669.295
DOI
10.18577/2307-6046-2017-0-10-5-5
Article PDF (Russian) (674.28 KB)
How to cite
Nochovnaya N.A., Nikitin Ya.Yu., Grigorenko V.B., Kozlov I.A. Changes in the surface properties of titanium alloy VT20 in the chemical removal of operational carbon pollution // Proceedings of VIAM. 2017. No. 10. DOI: 10.18577/2307-6046-2017-0-10-5-5. URL: https://test.viam.ru/en/journal/2017/10/5
Keywords
chemical cleaning, operational pollution, carbon polution, surface properties, titanium alloy.
Abstract

For the first time investigated the influence of foreign and domestic chemical technologies removal of operational carbon pollution on the complex properties of the surface of the heat-resistant titanium alloy VT20. Visually, the gravimetric method, and using scanning electron microscopy and X-ray microanalysis of samples evaluated cleaning performance against carbon polution. The change in surface roughness, microhardness and surface activity of purified samples. It is established that when cleaning samples from carbon pollution chemically, an increase in the microhardness and a reduction in surface activity may occur, as compared to those for the initial samples. By its technological characteristics VPr16 solder picked possibility of reconditioning by soldering after the removal of carbon polution from the surface of titanium alloy VT20 chemical means.

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