  The research results of the microstructure and corrosion resistance of Ti and
Ti-Al-V Russian industrial titanium alloys obtained by spark plasma sintering
(SPS) are described. Investigations of the microstructure, phase composition,
hardness, tensile strength, electrochemical corrosion resistance and hot salt
corrosion of Ti-Al-V titanium alloy specimens were carried out. It was shown
that the alloy specimens have a uniform highly dense microstructure and high
hardness values. The studied alloys also have high resistance to
electrochemical corrosion during tests in acidic aqueous solution causing the
intergranular corrosion as well as high resistance to the hot salt corrosion.
The assumption that the high hardness of the alloys as well as the differences
in the corrosion resistance of the central and lateral parts of the specimens
are due to the diffusion of carbon from the graphite mold into the specimen
surface was suggested.
