Electrolytic Polishing/Corrosion Process of Industrial Pure Titanium TA2

The electrolyte formula and process parameters for electrolytic polishing/corrosion of industrial pure titanium TA2 were studied and optimized. The optimal electrolyte formula was obtained as 90 mL HF, 20 g (NH₄)₂S₂O₈, 200 mL LCH₃CH₂OH, 360 mL H₂O. The matching process parameters were polishing voltage of 50V, electrolyte flow rate of 20 mL/s, polishing time of 50 s. The surface of the sample obtained after electrolytic polishing/corrosion was smooth, the metallographic structure was clear, and there was no pollution. The sample preparation time was short, which was a great improvement compared to mechanical polishing/corrosion. By using this formula and adjusting the corresponding process parameters, other titanium alloy materials could be electrolytically polished.