Abstract

Anodic electrochemical behaviors of the titanium matrix composites (TiB+TiC) /Ti6Al4V in 10 wt% NaNO3 and NaCl electrolytes are reported for the first time. The corrosion resistance is better in the NaNO3 electrolyte as the passive film can grow on the pitting region, which forming more stable passive film and hindering corrosion pit. Besides, the current efficiency is higher in NaNO3 electrolyte while the dissolved surface quality is significantly better in NaCl electrolyte, owing to the adhesion and mechanical loss of by-products in NaNO3 electrolyte. This research also provides guidance for better electrochemical machining in the titanium matrix composites.

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