Table 4 Detailed approach, electrolyte, immersion time, and research purpose of the electrochemical measurements.
From: Degradation of thermal oxide film on pure titanium in an acidic environment containing fluoride
Materials | Electrolytes | Method | Time | Purpose |
|---|---|---|---|---|
As-received and oxidized Ti under different conditions | Simulated condensates | OCP, Pol, EIS | Stabilization for 1 h | Clarify the effect of oxide film on the corrosion behavior and determine the optimum processing parameter. |
As-received Ti | H2SO4 (pH = 2) [F−] = 0, 0.0005, 0.001, 0.002 M | Pol, EIS | Stabilization for 0.5 h | Clarify the effect of [F−] on the corrosion of bare Ti and determine the critical [F−]. |
Oxidized Ti at 650 °C for 24 h | H2SO4 (pH = 2) [F−] = 0.002, 0.02, 0. 2 mol/L | Pol, EIS | Stabilization for 0.5 h | Clarify the effect of [F−] on the corrosion of oxidized Ti and determine the critical [F−]. |
As-received Ti | H2SO4 (pH = 2) [F−] = 0.002 mol/L | EIS | 0.5, 6, 12, 24, 48, 72 h | Clarify the corrosion mechanism of bare Ti in fluoride-containing environment. |
Oxidized Ti at 650 °C for 24 h | H2SO4 (pH = 2) [F−] = 0.002, 0.02 mol/L | EIS | 0.5, 72, 168, 336, 672 h | Clarify the long-term degradation mechanism of oxidized Ti in fluoride-containing environment. |
