电沉积纳米晶Ni-Co-Fe合金镀层的热稳定性-中国有色金属学报.PDF

1004-0609(2011)05-1087-06 Ni-Co-Fe 1 2 1, 3 1 1 , , , , (1. 350108 2. 361021 3. 350108 ) Ni-Co-Fe XRDTEMEDSDSC Ni-Co-Fe Ni-Co-Fe Co 300~375 375 450 (111)20 /min Ni-Co-Fe DSC Co Kissinger Ni-Co-Fe Co Ni-Co-Fe TG174.4 A Thermal stability of electrodeposition nanocrystalline Ni-Co-Fe alloy coatings 1 2 1, 3 1 1 LIN LÜ-bo , LIN Lan-fang , DAI Pin-qiang , LIAO Yao-xiang , ZHENG Yu-bin (1. College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China; 2. College of Marine Engineering, Jimei University, Xiamen 361021, China; 3. Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350108, China) Abstract: Nanocrystalline Ni-Co-Fe alloy coatings with smooth and bright surface were synthesized by pulsed electrodeposition. The microstructure, chemical composition, thermal stability and hardness of the coatings were studied by XRD, TEM, EDS, DSC and microhardness tester, respectively. The results reveal that the grain size of the nanocrystalline Ni-Co-Fe alloy coatings with FCC structure decreases with increasing the content of Co in the coatings. The microhardness of Ni-Co-Fe alloys increases with the increase of the annealing temperature after annealed at low temperatures, and rea