Effect of electrodeposition temperature on grain orientation and corrosion resistance of nanocrystalline pure nickel

The nanocrystalline pure nickels with different grain orientations were fabricated by direct current electrodeposition process. The grain size slightly decreased with the increasing of electrodeposition solution temperature. However, grain orientation was affected significantly. Comparing with samples obtained at 50 °C and 80 °C, sample obtained at 20 °C had the strongest (111) orientation plane which increased electrochemical corrosion resistance of this sample. At the same time, the lowest (111) orientation plane deteriorated electrochemical corrosion resistance of sample obtained at 50 °C.

The increased electrodeposition temperature promoted slightly grain refinement. The grain orientation was affected significantly by electrodeposition solution temperature. The (111) orientation plane of sample increased significantly corrosion resistance.Figure optionsDownload as PowerPoint slide