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Information × Registration Number 0218U000466, 0117U000718 , R & D reports Title Development technology of modification of the surface layers of sintered powder titanium alloys to increase corrosion and corrosion-abrasive resistance in aggressive environments of chemical production popup.stage_title Head Pohrelyuk Iryna, Доктор технічних наук Registration Date 14-02-2018 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 The corrosion resistance of Ti-6Al-4V (BT6) titanium alloy of different structural states obtained by compression and sintering of titanium hydride powder was investigated. The dependences between technological matrices for obtaining the structural state of the alloy, its chemical and microstructural homogeneity and residual porosity and corrosion resistance in aqueous solutions of chloride and sulfate acids were established. It is shown that in a 20% aqueous solution of chloride acid, the rate of corrosion of specimens of sintered titanium correlates with their density: when the density of specimens decreases, the rate of corrosion increases. In 40% aqueous solution of sulfate acid, the rate of corrosion of specimens of sintered Ti-6Al-4V alloy depends weakly on the density of the samples, and with the extension of the test base, this dependence is further weakened. The samples pass through during the tests in sulfate acid and practically do not corrode for further elongation. The results of gravimetric studies to estimate the corrosion losses of sintered titanium of various structural states correlate with electrochemical studies. The corrosion resistance of the sintered Ti-6Al-4V alloy in 40% aqueous solution of sulfate acid is higher than in the 20% aqueous solution of chloride acid. Product Description popup.authors Лук'яненко Олександр Геннадійович Проскурняк Роман Васильович Шляхетка Христина Сергіївна popup.nrat_date 2020-04-02 Close