INVESTIGATIONS ON THE PARAMETERS CONTROLLING ELECTROLYTIC POLISHING OF POLYCRYSTALLINE TITANIUM
Karrar Haider, Asma Haleem Khan, Khadim Hussain, Hamza Zafar

Abstract
Polishing of high purity titanium (99.994%) was carried out, overcoming many a hurdle in the process. After having employed various techniques and varied parameters, mirror like finish in the polished specimens was achieved. This could become possible only when the material was subjected to electrolytical polishing. Rod specimens and the mounted ones were electrolytically polished in a bath consisting of H2SO4 90% solution, density 1.84(25 vol %), HF 40% solution, density 1.10 (15 vol %) and glacial CH3COOH 100% solution, density 1.05 (60 vol %), with an additional agent cetyltrimethyl ammonium bromide (0.1-0.5 gml-1), for subsequent tensile testing and microstructural studies

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