SEM, 2020, #3, 49-53 pages
Effect of miсrostructural features on corrosion resistance of titanium alloys produced by powder technologies
I.M. Pogrelyuk1, D.G. Savvakin2, O.O. Stasyuk2, Kh.S. Shlyakhetkak1
G.V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine.
5 Naukova Str., 79060, Lviv, Ukraine. E-mail: firstname.lastname@example.org
G.V. Kurdyumov Institute of Metal Physics.
36 Vernadskii Prosp. 03680, Kyiv, Ukraine. E-mail: email@example.com
Corrosion resistance of sintered titanium alloy Ti–6Al–4V in different structural states was investigated by gravimetric
and electrochemical methods in 20 % aqueous solution of hydrochloric acid. By changing the technological parameters
in the process of manufacturing the sintered alloy, it was possible to control its porosity in the range of 1…4 %. A
general tendency of slowing down of the corrosion processes with decrease in porosity was established. It is shown
that reducing the volume fraction of pores to 1…2 %, as well as spheroidizing them and reducing their size increase the
corrosion resistance. Ref. 9, Tabl. 2, Fig. 6.
titanium alloy Ti–6Al–4V; powder metallurgy; powder; titanium hydride; hydrochloric acid; corrosion
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