Demonstrates increased microhardness of titanium alloy with electron beam powder coating in fore-vacuum, suggesting improved material properties.
The article presents the results of electron beam coating with titanium carbide (TiC) and silicon carbide (SiC) powders onto a titanium substrate (VT-1.0) in the fore-vacuum pressure range. The electron beam was generated by an electron source with a plasma cathode. It is shown that powder coating in a fore-vacuum is more effective than in a high vacuum due to a multiple increase in the proportion of powder absorbed by the melt from 2.5% (at 10–3 Pa) to 11% (at 4 Pa). It was found that heavier SiC particles are less susceptible to scattering during radiation exposure. The application of both types powders significantly increases the microhardness of the surface layer from 1 GPa (base material) to 7–8.8 GPa.
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Zenin et al. (2025) studied this question.
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