Behaviour of titanium and its alloy with hydrofluoric acid in HCI and H2SO4 solutions with addition agents

Abstract

The corrosion of Ti and Ti‐Hf25% alloy at 28°C (room temperature) in 20% MC1 and 20% H2SO4 solutions in the presence of 1g/litre of cations such as Fe+3, Cu+2, Ni+2 in each case and of several organic inhibitors has been studied. Cationic additions of Fe+3 and Cu+2 to 20% H2SO4 inhibit much better than similar additions to 20% HC1 solution and generally exhibit higher inhibitor efficiencies than the organic inhibitors studied. The addtions of Fe+3 and Cu+2 to corroding media shift the electrode potentials to noble values. However Ni+2 additions are not found to be effective.

Citation

Shibad, P.R. and Balachandra, J. (1976), "Behaviour of titanium and its alloy with hydrofluoric acid in HCI and H2SO4 solutions with addition agents", Anti-Corrosion Methods and Materials, Vol. 23 No. 12, pp. 16-28. https://doi.org/10.1108/eb007024