磁场对纳米铁酸鎳(NiFe2O4)磁流体金属腐蚀行为研究.

To investigate the corrosion of metals in nano magnetic fluids under magnetic field conditions, a two-step method was used to prepare nano NiFe2O3 magnetic fluids. The corrosion rate of copper sheets in nano magnetic fluid media under magnetic field conditions was investigated using the gravimetric method, and the effects of different dispersants and their mass fractions, pH values, nano NiFe2O4 particle mass fractions, and magnetic field strength on the corrosion rate of copper sheets were analyzed. The experimental results indicate that both oleic acid and sodium dodecyl sulfate inhibit the corrosion of copper sheets. And the inhibitory effect of sodium dodecyl sulfate is better. The corrosion rate of copper sheets under alkaline conditions is lower than that under acidic conditions. The addition of nano magnetic particles promotes the corrosion of copper sheets to a certain extent. The magnetic field strength can improve the corrosion resistance of copper sheets in nano magnetic fluid media. As the magnetic field strength increases, the corrosion rate of copper sheets gradually decreases. [ABSTRACT FROM AUTHOR]