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Corrosion Resistances of VT1-0 Titanium and VT6 Titanium Alloy Obtained by the Method of Powder Metallurgy in Aqueous Solutions of Hydrochloric Acid

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We analyze the corrosion resistance of VT1-0 titanium and VT6 titanium alloy (Ti–6Al–4V) with residual porosities of 1, 3, and 4% obtained as a result of cold pressing and vacuum sintering of titaniumhydride powders in 10, 20, and 30% aqueous solutions of hydrochloric acid. The obtained results are compared with the data on corrosion resistance of the materials produced according to the traditional technology. It is established that titanium and its alloy obtained by the method of powder metallurgy dissolve in concentrated solutions of hydrochloric acid faster than the materials prepared according to the standard technology. The intensity of corrosion dissolution increases with the growth of the residual porosity of sintered materials and the concentration of hydrochloric acid. The corrosion characteristics of titanium and its alloy with residual porosities of 1 and 3%, independently of the technology of production, do not exhibit any noticeable difference, despite the fact that the corrosion resistance of the alloy somewhat increases. The corrosion resistance of sintered VT6 alloy (Ti–6Al–4V) with a residual porosity of 4% is twice higher than for titanium.

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Authors and Affiliations

  1. Karpenko Physicomechanical Institute, National Academy of Sciences of Ukraine, Lviv, Ukraine

    І. М. Pohrelyuk & Kh. R. Melnyk

  2. Kurdyumov Institute for Metal Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

    D. H. Savvakin & О. О. Stasyuk

  3. “Zaporiz’ka Politekhnika” National University, Zaporizhzhya, Ukraine

    О. V. Ovchynnykov

  4. Zaporizhzhya Titanium-Magnesium Integrated Works, LLC, Zaporizhzhya, Ukraine

    S. М. Tkachenko & О. О. Osypenko

Authors
  1. І. М. Pohrelyuk
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  2. D. H. Savvakin
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  3. Kh. R. Melnyk
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  4. О. О. Stasyuk
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  5. О. V. Ovchynnykov
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  6. S. М. Tkachenko
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  7. О. О. Osypenko
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Correspondence to І. М. Pohrelyuk.

Additional information

Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 56, No. 5, pp. 33–39, September–October, 2020.

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Pohrelyuk, І.М., Savvakin, D.H., Melnyk, K.R. et al. Corrosion Resistances of VT1-0 Titanium and VT6 Titanium Alloy Obtained by the Method of Powder Metallurgy in Aqueous Solutions of Hydrochloric Acid. Mater Sci 56, 613–621 (2021). https://doi.org/10.1007/s11003-021-00472-y

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  • DOI: https://doi.org/10.1007/s11003-021-00472-y

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