Research of corrosion resistance surface compressor steel modified in the titanium plasma of vacuum arc discharge

Azarovskiy E.N., Muboyadzhyan S.A.
UDC
620.1
DOI
10.18577/2307-6046-2017-0-3-8-8
Article PDF (Russian) (822.84 KB)
How to cite
Azarovskiy E.N., Muboyadzhyan S.A. Research of corrosion resistance surface compressor steel modified in the titanium plasma of vacuum arc discharge // Proceedings of VIAM. 2017. No. 3. DOI: 10.18577/2307-6046-2017-0-3-8-8. URL: https://test.viam.ru/en/journal/2017/3/8
Keywords
steel compressor, vacuum arc, titanium plasma, ion modification, thermally ion diffusion, ion etching, microstructure, electron microscopy.
Abstract

The paper is considersed the process of modifying the surface of the ion samples of steel EP866 compressor and EI961 in titanium plasma vacuum arc discharge (VAD) for the values of bias voltages of 150; 300 and 400 and a current of 300A arc. Shows the dependence of the sample weight change on the parameters of the process and shows the change of the process temperature by the processing time at bias voltages 150; 300 and 400 and a constant value so that a vacuum arc. It was shown during the surface modification process, for given values of the arc current and the bias voltages of the process temperature does not exceed the temperature of tempering compressor steel EP866 and EI961.

Metallographic examinations were carried out and the treated samples are given their microstructure. We studied the elemental composition of samples processed at a current of 300 A and VAD bias voltages of 150; 300 and 400, and the main phase of the surface layer of the treated samples.

Tests of samples modified for resistance to salt corrosion VIAM procedure at a temperature of 600°C and obtained results of visual and gravimetric control. This work was performed as part of the strategic direction 17. «Comprehensive anti-corrosion protection, reinforcing, wear-resistant protective coating». Complex problem 17.3. «Multi-layer heat-resistant and heat-resistant coatings, nanostructured reinforcement erosion and corrosion-resistant, wear-resistant, antifretting coating to protect the hot section components and compressor gas turbine engines and gas turbines» («The strategic directions of development of materials and technologies of their processing for the period till 2030»)

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