电弧离子镀CrN涂层盐雾腐蚀行为
收稿日期: 2009-11-13
修回日期: 2010-01-15
网络出版日期: 2010-05-11
SALT SPRAY CORROSION BEHAVIOUR OF CrN COATINGS DEPOSITED BY ARC ION PLATING
Received date: 2009-11-13
Revised date: 2010-01-15
Online published: 2010-05-11
采用电弧离子镀技术在38CrA调制钢上制备CrN涂层, 分析了涂层的组织及结构, 研究了工艺参数对CrN涂层中性盐雾腐蚀性能的影响. 结果表明: 3组不同工艺的CrN涂层均由fcc-CrN, hcp-Cr2N以及bcc-Cr相组成; 在N2压强较低时, CrN相表现为{100} 择优取向, N2压强较高时, 则表现为{110} 择优取向. 在高偏压低N2压强下沉积的 CrN涂层结构致密, 残余应力和孔隙率最小, 具有最佳的抗盐雾腐蚀性能. 通过扫描电子显微镜分析盐雾腐蚀后样品的表面腐蚀产物, 并结合极化曲线测量结果, 对其盐雾腐蚀机理进行了探讨.
万先松 , 师玉英 , 马军 , 李海庆 , 宫骏 , 孙超 . 电弧离子镀CrN涂层盐雾腐蚀行为[J]. 金属学报, 2010 , 46(5) : 600 -606 . DOI: 10.3724/SP.J.1037.2009.00759
CrN coatings were deposited onto 38CrA substrate using arc ion plating (AIP) method. The microstructures of CrN coatings were investigated by XRD and SEM. The corrosion behaviour affected by deposition parameters was studied by salt spray corrosion test in a neutral mist of NaCl solution at (35±2) ℃ for 300 h. The results show that all of the CrN coatings contain primarily fcc-CrN along with hcp-Cr2N and bcc-Cr phases. CrN phase in coating deposited under lower N2 pressure exhibited {100} preferred orientation, while {110} preferred orientation under higher N2 pressure. Under the deposition condition of higher bias voltage and lower N2 pressure, the CrN coating achieves dense microstructure with less residual stress and porosity, which leads to better corrosion resistance in salt spray test. The corrosion product of salt spray test was investigated by SEM and EDS, and the corrosion mechanism was discussed.
Key words： CrN; arc ion plating; salt spray corrosion; potentiodynamic polarization
[1] Navinsek B, Panjan P. Surf Coat Technol, 1995; 74: 155
[2] Holleck H. J Vac Sci Technol, 1986; 4A: 2661
[3] Liu C, Bi Q, Matthews A. Corros Sci, 2001; 43: 1953
[4] M¨unz W D. J Vac Sci Technol, 1998; 4A: 2717
[5] Navinsek B, Panjan P. Thin Solid Films, 1993; 223: 4
[6] Ren M, Yang Z G, Shaw L L. Nanostruct Mater, 1999; 11: 25
[7] Ehiasarian A P, Wen J G, Petrov I. J Appl Phys, 2007; 101: 054301
[8] Volz K, Kiuchi M, Ensinger W. Surf Coat Technol, 1998; 108: 303
[9] Kacsich T, Perry A J. J Phys, 1995; 28D: 424
[10] Kondo A, Oogami T, Sato K, Tannka Y. Surf Coat Technol, 2006; 177: 238
[11] Ljungcrantz H, Hultman L, Sundgren J E, Hakansson G, Karlsson L. Surf Coat Technol, 1994; 63: 123
[12] Wang Q M, Kim K H. J Vac Sci Technol, 2008; 26A: 1267
[13] Liu C, Bi Q, Ziegele H, Leyland A, Matthews A. J Vac Sci Technol, 2002; 20A: 772
[14] Janssen G C A M. Thin Solid Films, 2007; 515: 6654
[15] Zhao S S. PhD Thesis, Graduate University of Chinese Academy of Sciences, Beijing, 2009
(赵升升. 中国科学院研究生院博士学位论文, 北京, 2009)
[16] Wan X S, Zhao S S, Yang Y, Gong J, Sun C. Surf Coat Technol, doi: 10.1016/j.surfcoat.2009.11.021
[17] Davis C A. Thin Solid Films, 1993; 226: 30
[18] Zhang B H, Cong W B, Yang P. Electrochemical Corrosion and Protection of Metal. Beijing: Chemical Industry Press, 2005: 86
(张宝宏, 从文博, 杨萍. 金属电化学腐蚀与防护. 北京: 化学工业出版社, 2005: 86
[19] Cao C N. Principles of Electrochemical Corrosion. 2nd ed, Beijing: Chemical Industry Press, 2004: 99
(曹楚南. 腐蚀电化学原理. 第二版, 北京: 化学工业出版社, 2004: 99)
[20] Conde A, Navas C, Cristobal A B, Housden J, Damborenea J D. Surf Coat Technol, 2006; 201: 2690
[21] William V K G, Harish C B, Selvi V E, Kalavati, Rajam K S. Thin Solid Films, 2006; 514: 204
[22] Aromaa J, Ronkainen H, Mahiout A, Hannula S P, Leyland A, Matthews A, Matthes B, Broszeit E. Mater Sci Eng, 1991; A140: 722
[23] Tato W, Landolt D. J Electrochem Soc, 1998; 145: 4173
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