Application of ionic liquid electrodeposition of aluminum and its alloys on NdFeB permanent magnet surface
[Introduction]Recently,the electrodeposition of aluminum and its alloys on different materials has attracted much attention for its advantages of lightweight,corrosion resistance,and low cost. Ionic liquids are regarded as the first choice for environmentally friendly electrolytes due to their high conductivity,wide electrochemical window,and low toxicity. The electrodeposition of aluminum and its alloys in ionic liquids can effectively improve the corrosion resistance and mechanical properties of the substrate,providing new insights for the application of low-corrosion-resistant NdFeB permanent magnet.[Method]The latest advances in the electrodeposition technology,mechanism,and application of aluminum and its alloys in ionic liquids with AlCl3 as the main salt were reviewed. The research and application progress of the electrodeposition of aluminum and its alloys in ionic liquids for surface treatment of NdFeB permanent magnet was introduced,and the existing problems in this field was proposed.[Result]The application of aluminum and its alloys electrodeposited in ionic liquids for the surface treatment of NdFeB permanent magnet is primarily focused on Al and Al-Mn alloy.[Conclusion]The electrodeposition of aluminum and aluminum alloys in ionic liquids as a surface protection method for NdFeB permanent magnet has been widely concerned in the industry,and some progress has been made,while there are some problems such as high cost,high viscosity of ionic liquid,and difficulty in deposition need to be solved.
neodymium-iron-boron permanent magnetionic liquidelectrodepositionaluminum and aluminum alloyreview
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