A comprehensive study of the green Hexafluorozirconic acid (cas 12021-95-3)-based conversion coating
-
Add time:07/28/2019 Source:sciencedirect.com
The effect of four practical parameters (deposition temperature, time, bath pH and concentration of Zr) on electrochemical and morphological properties of zirconium based conversion coating (ZrCC) on cold rolled steel (CRS) substrates was investigated. DC polarization and electrochemical impedance spectroscopy (EIS) measurements were used for electrochemical studies. Micro structural characterization was carried out by FE-SEM, AFM and EDS. The optimal conditions were determined as follows: solution temperature 20–30 °C, immersion time 60–120 s, pH = 4 and acid concentration of 4% vol. In such condition, corrosion resistance values were maximum and uniformity was improved. Microscopical observations revealed that ZrCC comprises a two-layered structure. The film formation mechanism of ZrCC was discussed in detail. After achieving the optimum conditions, epoxy nanocomposites were applied on ZrCC treated CRS samples and corrosion performance of fully painted system was investigated. Finally the adhesion strength of subsequently applied organic coating on ZrCC treated substrates was measured by pull-off technique which exhibited considerable high values.
We also recommend Trading Suppliers and Manufacturers of Hexafluorozirconic acid (cas 12021-95-3). Pls Click Website Link as below: cas 12021-95-3 suppliers
Prev:Hexafluorozirconic acid (cas 12021-95-3) based surface pretreatments: Characterization and performance assessment
Next:Nano-ceramic Hexafluorozirconic acid (cas 12021-95-3) based conversion thin film: Surface characterization and electrochemical study) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Nano-ceramic Hexafluorozirconic acid (cas 12021-95-3) based conversion thin film: Surface characterization and electrochemical study07/29/2019
- Hexafluorozirconic acid (cas 12021-95-3) based surface pretreatments: Characterization and performance assessment07/27/2019
- Synthesis and characterization of Hexafluorozirconic acid (cas 12021-95-3) powder and its application in nanoceramic coating07/26/2019
-
Health and Chemical more >