利用电沉积法制备出Ni-SiC复合镀层,研究了阴极电流密度、温度、pH、搅拌速率、表面活性剂等工艺参数对镀层显微硬度和沉积速率的影响,通过正交试验得出了最佳工艺参数:阴极电流密度4A/dm2,SiC微粒悬浮量60g/L,温度40℃,pH 2.5,搅拌速率300 r/min.用SEM、XRD和TEM分析了镀层的表面形貌、组织结构及镀层中粒子的分布,结果表明:SiC微粒均匀分布于复合镀层中,镀层表面平整光滑,显微组织均匀、致密,其显微硬度也较纯镍镀层有显著提高.
参考文献
| [1] | 郭鹤桐;张三元.复合镀层[M].天津:天津大学出版社,1991 |
| [2] | Zhou Y;Zhang H;Qian B .Friction and wear properties of the co-deposited Ni-SiC nanocomposite coating[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2007(20):8335-8339. |
| [3] | 苏立民,虞润林,吴玉道,李晋,王春亮,薛武智.复合镀技术及其在转子发动机缸体中的应用[J].腐蚀与防护,2005(02):67-68,71. |
| [4] | SHRESTHA N K;MASUKO M;SAJI T .Composite plating of Ni/SiC using azo-cationic surfactants and wear resistance of comings[J].Wear,2003,254(5/6):555-564. |
| [5] | Ger MD .Electrochemical deposition of nickel/SiC composites in the presence of surfactants[J].Materials Chemistry and Physics,2004(1):67-74. |
| [6] | K. H. Hou;M. D. Ger;L. M. Wang;S. T. Ke .The wear behavior of electro-codeposited Ni-SiC composites[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2002(9/10):994-1003. |
| [7] | 查全性.电极过程动力学导论[M].北京:科学出版社,1984 |
| [8] | 韩廷水,于爱兵,田欣利.表面活性剂对Ni-Si3N4复合镀层的影响[J].中国表面工程,2004(06):32-35. |
| [9] | GYFTOU P;STROUMBOULI M;PAVLATOU E A et al.Electrodeposition of Ni/SiC composites by pulse electrolysis:Electrodeposition in electronics[J].Transactions of the Institute of Metal Finishing,2002,80(03):88-91. |
| [10] | 王立平,高燕,薛群基,徐洮.新型Ni-P功能梯度镀层的磨损特性研究[J].摩擦学学报,2005(04):294-297. |
| [11] | X. Peng;Y. Zhang;J. Zhao;F. Wang .Electrochemical corrosion performance in 3.5% NaCl of the electrodeposited nanocrystalline Ni films with and without dispersions of Cr nanoparticles[J].Electrochimica Acta,2006(23):4922-4927. |
| [12] | X. Peng;D. -h. Ping;T. f. Li;W. t. Wu .Oxidation behavior of a Ni-La{sub}2O{sub}3 codeposited film on nickel[J].Journal of the Electrochemical Society,1998(2):389-398. |
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