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Registration Number

0220U101701, 0119U101188 , 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

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Head

Pohreliuk Iryna M.,

Registration Date

18-02-2020

Organization

Karpenko Physico-Mechanical Institute of NASU

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 It is established that the corrosion durability of consolidated titanium BT1-0 and its alloy TI6A14U with deterioration of the quality of titanium hydride powder decreases by 1.7-1.9 and 1.2-1.3 times, respectively, depending on the concentration of aqueous hydrochloric acid solution (10, 20 and 30%), and with increasing concentration, the negative impact of poorer quality powder increases. In the Ti6A14U alloy, the corrosion rate is increased by 48.5 using the oxidized titanium hydride powder; 61.35 and 58.1% less than titanium BT1-0 in 10-, 20- and 30% aqueous solutions, respectively. Nitrogenation by one to three orders of magnitude reduces the corrosion rate of the consolidated material, and the effectiveness of such anti-corrosion protection for samples synthesized from oxidized powdered raw materials is higher, especially for titanium BT1-0 (twice).

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Lavrys' Sergiy M.
Lukyanenko Oleksandr G.
Melnyk Khrystyna R.
Pohreliuk Iryna M.
Shlyakhetka Khrystyna S.

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2020-04-02