期刊文献+

稀土Ce含量对双脉冲电沉积Ni-Co合金层结构及耐蚀性的影响 被引量:2

Influences of Rare Earth Cerium Content on the Structure and Corrosion Resistance of Ni-Co Alloy Coating Prepared by Dual-Pulse Electrodeposition
下载PDF
导出
摘要 目前将稀土用作电沉积Ni-Co合金添加剂时有关其对镀层耐蚀性的影响报道较少。通过X射线衍射、极化曲线和中性盐雾试验研究了稀土Ce对双脉冲电沉积纳米Ni-Co合金层晶粒尺寸及耐蚀性的影响,采用扫描电镜对有无稀土Ce的Ni-Co合金镀层盐雾腐蚀前后的表面形貌进行了观察。结果表明:无论是否添加稀土Ce,Ni-Co合金镀层均为面心立方结构,主要的晶面取向为(111)和(200)面;稀土Ce含量在一定范围时,细化了Ni-Co合金镀层的晶粒,镀层的自腐蚀电位正移,自腐蚀电流减小,耐蚀性增加,且加入量为0.6g/L时晶粒尺寸最小。 The effects of rare earth cerium(Ce) on the grain size and corrosion resistance of the Ni- Co alloy coatings were studied by X-ray diffraction(XRD),polarization curve measurement and neutral salt spray test.Subsequently,the surface morphologies of the Ni-Co alloy coating deposited with or without Ce element before and after salt spray test were observed by scanning electron microscopy.Results showed that irrespective of adding Ce element or not,the crystal structure of Ni-Co alloy coatings was face- centered cubic(fcc) with(111) and(200) crystal orientation.Moreover,with a certain content of Ce,the crystal particle of Ni-Co alloy coating became refined,and the corrosion resistance of coatings was improved with the positive shift of the self-corrosion potential and the decrease of self-corrosion current.When the content of Ce was 0.6 g/L,the Ni-Co alloy coating had the minimum grain size.
出处 《材料保护》 CAS CSCD 北大核心 2015年第11期8-10,40,共3页 Materials Protection
关键词 Ni—Co合金 双脉冲电沉积 稀土Ce 耐蚀性 晶粒尺寸 Ni-Co alloy dual-pulse electrodeposition rare earth cerium corrosion resistance grain size
  • 相关文献

参考文献5

二级参考文献23

  • 1林英光,皮丕辉,郑大锋,杨卓如,王炼石.Preparation and photocatalytic activity of laponite pillared by CeO_2 modified TiO_2[J].Journal of Rare Earths,2010,28(5):732-736. 被引量:4
  • 2朱龙章,陈霞,顾卫星.稀土镧对镍-铁合金镀层铁含量及耐蚀性的影响[J].电镀与精饰,1994,16(6):4-7. 被引量:17
  • 3成旦红.稀土元素在金属电沉积中的应用[J].电镀与涂饰,1995,14(1):40-47. 被引量:34
  • 4覃奇贤.电镀原理与工艺[M].天津:天津科学技术出版社,1993..
  • 5[苏]安特罗波夫L I 吴仲达(译).理论电化学[M].北京:高等教育出版社,1982..
  • 6[7]刘永辉.电化学测试技术[M].北京:北京航空航天大学出版社,1998.89.
  • 7Wang Guofeng,Mu Qiuying,Chen Ting,Wang Yude.Synthesis, characterization and photoluminescence of CeO 2nanoparticles by a facile method at room temperature. Journal of Alloys and Compounds . 2010
  • 8Xu Ruidong,Wang Junli,He Lifang,Guo Zhongcheng.Study on the characteristics of Ni-W-P composite coatings containing nano-SiO 2and nano-CeO 2particles. Surface and Coatings Technology . 2008
  • 9Sen Ranjan,Bhattacharya Sumit,Das Siddhartha,Das Karabi.Effect of surfactant on the co-electrodeposition of the nanosized ceria particle in the nickel matrix. Journal of Alloys and Compounds . 2010
  • 10Touhami M Ebn,Chassaing E,Cherkaoui M.Modelisation of Ni-P electroless deposition in ammoniacal solutions. Electrochimica Acta . 2003

共引文献32

同被引文献17

引证文献2

二级引证文献5

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部