Galvanic effects during the coupling of 316L type stainless steel with titanium, niobium, or tantalum in Ringer's solution have been studied. The steel acted as the cathode in all cases. The magnitude of the galvanic current depended on the passivity of the metal forming the anode. Under conditions of galvanic coupling, the increase in the film thickness on titanium, niobium, or tantalum appeared to follow a logarithmic law. It was shown that unstable oxide films were formed as a result of the passivation of the metal (titanium, niobium, or tantalum) in air.
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