Electroless plating of Ni-Zn(Fe)-P alloy on carbon steel sheets  

作　　者：WANG Sen-lin WU Hui-huang 

机构地区：[1]College of Materials Science and Engineering, Huaqiao University, Quanzhou 362021, China [2]State Key Laboratory for Physical Chemistry of Solid Surface, Department of Chemistry,Xiamen University, Xiamen 361005, China State Key Laboratory for Physical Chemistry of Solid Surface, Department of Chemistry,Xiamen University, Xiamen 361005, China

出　　处：《中国有色金属学会会刊：英文版》2004年第z1期157-161,共5页Transactions of Nonferrous Metals Society of China

基　　金：Project (20073035) supported by the National Natural Science Foundation of China; Project (E0210020) supported by the Natural Science Foundation of Fujian Province

摘　　要：The autocatalytic deposition of Ni-Zn(Fe)-P alloys were carried out on carbon steel sheets from bath containing nickel sulfate, zinc sulfate, sodium hypophosphite, sodium citrate and boric acid. The effects of pH and mole ratio of NiSO4/ZnSO4 on the deposition rate and the composition of deposit were studied. It is found that the presence of zinc sulfate in the bath has an inhibitory effect on the alloy deposition. As a consequence, the mole fraction of zinc in the deposits never reaches high value, which is less than 18.0%. The structure and surface morphology of Ni-Zn(Fe)-P coatings were charactered by XRD and SEM. The alloys plated at all conditions consist of amorphous phase coexisting with a crystalline cubic Ni phase. The surface morphology of coating is dependent on the deposition parameters.

关 键 词：ELECTROLESS PLATING NICKEL ZINC 

分 类 号：TG176[金属学及工艺—金属表面处理]