Electrochemical Studies of Stainless Steel and Stainless Steel-TiO Composite in Reference to Molten Aluminum Alloy Using a Solid-State BaCO Electrolyte.

The influence of TiO addition on the high-temperature electrochemical characteristics of stainless-steel-based materials was investigated by means of differential potential measurement, electrochemical polarization and impedance spectroscopy. A new three-electrode approach was utilized which incorporated a liquid aluminum alloy AlSi7Mg0.3 as the reference electrode, barium carbonate BaCO as the solid-state electrolyte, and stainless steel or a stainless steel-TiO composite as the working electrode.