Effect of fluoride ions on corrosion behaviour of commercial pure titanium in artificial seawater environment

Effect of pH on the Corrosion and Repassivation Behavior of TA2 in Simulated Seawater

“…It should be noted that some black dots were likely to be wear track resulting from grinding with 2000 grit silicon paper before immersion test. Similar phenomenon could be found in morphology of other studies [41][42][43]. As shown in Figure 10e, a layer of white sedimentation product was deposited on the surface of the sample.…”

Localized Corrosion Resistance on Additively Manufactured Ti Alloys by Means of Electrochemical Critical Localized Corrosion Potential in Biomedical Solution Environments

“…According to the Bode plots (after the E-CLCP tests) shown in Figure 11 b, the phase angles are flat in the middle-frequency (1–10 Hz) region. A plateau close to −90° corresponds to a dense oxide film [ 57 ] and shows the following sequence in the AM Ti–6Al–4V alloys: (≈−80°) 1000HT > 850HT > 750HT > 750WQ > 650HT > 650WQ > as-received (≈−65°). The 650HT or 750HT samples with precipitates are the more protective passive films compared with the 650WQ or 750WQ samples without precipitates, respectively.…”

Corrosion comparison of free and roller surfaces of Fe70Si8B12Nb10 amorphous ribbon

“…Generally, in the Bode plot, the closer the phase angle is to 90 , the more stable and compact the passivation lm on the surface. [34][35][36] According to equivalent circuit tting, the outer layer resistance (R out ) of the RS was very small, and was much lower than that of the FS, indicating that the RS has pores and is much looser as compared to the FS. There was little difference between the values of the inner layer resistance (R in ) of the FS and RS, indicating that there was a distinctive difference in the shallow outer layer between the FS and RS, while their inner layer was similar.…”