Electrochemical high-throughput characterization of metallic micro samples (SFB 1232)
Figure 1: Cyclic voltammograms of different alloys in 0.1 M phosphate buffer. The stainless steel (X5CrNi18-10) shows a lower passive current and thus a better passivation.
Figure 2: Electrochemical impedance measurements of cold formed stainless steel. Due to different forming velocities (v = 10mms-1/5 mms-1/1 mms-1) different martensite contents can be achieved. These differences lead to changes in the passivity and thus the electrochemical impedance.
Figure 3: Electrochemical noise measurement in 0.1 M phosphate buffered saline.
Figure 4: Corrosion damage due polarisation scans in different electrolytes; left: 0.1 M phosphate buffe with 3.5 wt.-% NaCl; right: pure 3.5 wt.-% NaCl solution. By adding phosphate buffer tot he electrolyte (left) pure pitting corrosion can be observed. Without phosphate buffer the pitting corrosion is overlapped by additional dissolution processes.
Figure 5: Height profile after pitting corrosion on cold formed stinless steel
- File name: IBosing_Eurocorr2018_Presentation.pdfLast update: 20.09.2018