Effect Of Rare Earth On The Coating Technology And Properties Of Electroless Fe-Ni-B Alloy

The preparation process， electrochemical property， composition andstructure， and mechanical and magnetic property of the electroless Fe-Ni-Balloy with rare earth joined have been studied． The optimum formulation ofelectroless Fe-Ni-B alloy was confirmed using perpenpular method， theeffects of Ce on the process of electroless Fe-Ni-B alloy were analyzed． Theelectrochemical property of electroless bath was tested，and the influences ofboth components and rare earth element on the cathode reduce werediscussed． In order to gain the magnetic Fe-Ni-B coating with excellentproperties， the mechanism of action and influence of rare earth on process，composition and structure， morphology， mechanical and magnetic propertyof electroless Fe-Ni-B alloy were analyzed． The results show that the bestmass ratio in bath two main salt’s is4:1， the soft magnetic property wasoptimized with addition of main salts.The stability of electroless anddeposition rate of Ni2+increase with the addition of ethylenediamine.Thedeposition rate and the stability of bath increase，The irregular cord-like cellon surface of alloy refine， the corrosion resistance and soft magnetic ofFe-Ni-B coating increase with addition of the rare earth Ce．...