Electroless Nickel Plating on Mg-Li Alloy

With magnesium-lithium alloy as experimental material,a process using nickel acetate as main salt was investigated,and more stable technological conditions was selected.The pretreatment for electroless nickel plating directly on magnesium-lithium alloy was studied.The performance of the coating was studied with XRD,micro-hardness meter,(SEM/EDAX,) etc.The experiments show that the average deposition rate of the electroless nickel plating on magnesium-lithium alloy is 16~25 μm·h~(-1),the phosphorus content in the coating is about 7 %, 5 177 MPa hardness can be reached,the deposited nickel coating is uniform,compact and has a much improved corrosion resistance.