KONG Lin,LIU Pinxiao*,KONG Bin.Electroless Plating of Ni-P/Ni-Mo-P Bilayered Coating on A3 Steel[J].Plating & Finishing,2021,(1):25-30.[doi:10.3969/j.issn.1001-3849.2021.01.0050]
A3钢表面化学镀Ni-P/Ni-Mo-P双层镀层
- Title:
- Electroless Plating of Ni-P/Ni-Mo-P Bilayered Coating on A3 Steel
- 关键词:
- Ni-P/Ni-Mo-P双层镀层; 单层Ni-P镀层; 化学镀; 腐蚀速率; 腐蚀形貌
- 文献标志码:
- A
- 摘要:
- 在A3钢表面制备了以Ni-P镀层为底层、Ni-Mo-P镀层为表层的双层镀层，测试了单层Ni-P镀层、Ni-P/Ni-Mo-P双层镀层的结合力、腐蚀速率和阻抗谱图，并表征分析了单层Ni-P镀层、Ni-P/Ni-Mo-P双层镀层的成分以及腐蚀前后的形貌。结果表明，单层Ni-P镀层和Ni-P/Ni-Mo-P双层镀层都与基体结合良好，且都呈较为平整的胞状形貌；单层Ni-P镀层和Ni-P/Ni-Mo-P双层镀层都属于中磷镀层，Ni-P/Ni-Mo-P双层镀层表面几乎没有孔洞，胞状物大小相对均一，孔隙率仅为0.6个/cm2，明显低于单层Ni-P镀层；在一定周期内，单层Ni-P镀层和Ni-P/Ni-Mo-P双层镀层都能对A3钢起到较好的保护作用，从而减轻A3钢腐蚀。与单层Ni-P镀层相比，Ni-P/Ni-Mo-P双层镀层的耐腐蚀性能更好，能为A3钢提供更长效的防护。
- Abstract:
- Ni-P/Ni-Mo-P bilayered coating with Ni-P coating as the bottom layer and Ni-Mo-P coating as the surface layer was prepared on the surface of A3 steel. The binding force, corrosion rate and impedance spectra of single-layer Ni-P coating and Ni-P/Ni-Mo-P bilayered coating were tested, and the composition and morphology of single-layer Ni-P coating and Ni-P/Ni-Mo-P bilayered coating before and after corrosion were characterized and analyzed. The results show that both the single-layer Ni-P coating and Ni-P/Ni-Mo-P bilayered coating have a good combination with the matrix and they all present relatively flat cellular morphology. Both the single-layer Ni-P coating and Ni-P/Ni-Mo-P bilayered coating belong to the medium phosphorus coating, there are almost no holes on the surface of Ni-P/Ni-Mo-P bilayered coating, and the cellular substances are relatively uniform. The porosity of Ni-P/Ni-Mo-P bilayered coating is only 0.6 cm-2, which is significantly lower than that of single-layer Ni-P coating. In a certain period, both the single-layer Ni-P coating and Ni-P/Ni-Mo-P bilayered coating can play a protective role in reducing the corrosion of A3 steel. Compared with single-layer Ni-P coating, Ni-P/Ni-Mo-P bilayered coating exhibits better corrosion resistance and can provide longer protection for A3 steel.
参考文献/References:
[1] 张祖军, 王勇. 铝合金化学镀Ni-P/Ni-B双层复合镀层及其性能研究[J]. 材料导报, 2006, 20（z2）: 342-344.
Zhang Z J, Wang Y. The capability study of Ni-P/Ni-B double layer composite coating on aluminium alloy by electroless plating[J]. Materials Review, 2006, 20（z2）: 342-344 （in Chinese）.
[2] 高荣杰, 杜敏, 孙晓霞, 等. 双层Ni-P化学镀工艺及镀层在NaCl溶液中耐蚀性能的研究[J]. 腐蚀科学与防护技术, 2007, 19（6）: 435-438 （in Chinese）.
Gao R J, Du M, Sun X X, et al. Electroless deposition of double layered Ni-P coating and its corrosion performance in sodium chloride solutions[J]. Corrosion Science and Protection Technology, 2007, 19（6）: 435-438 （in Chinese）.
[3] 赵丹, 徐旭仲, 刘亭亭. Ni-P/Ni-Zn-P双层复合镀层制备及耐蚀性的研究[J]. 表面技术, 2017, 46（4）: 240-245.
Zhao D, Xu X Z, Liu T T. Preparation and corrosion resistance of bilayered Ni-P/Ni-Zn-P composite coating[J]. Surface Technology, 2017, 46（4）: 240-245 （in Chinese）.
[4] 王良洪, 谢红希, 肖刚锋. 7075铝合金化学镀Ni-P/Ni-W-P双层镀层研究[J]. 表面技术, 2012, 41（2）: 43-46.
Wang L H, Xie H X, Xiao G F. Research of the electroless Ni-P/Ni-W-P duplex coatings on 7075 aluminium alloy[J]. Surface Technology, 2012, 41（2）: 43-46 （in Chinese）.
[5] 张翼, 王娅莉, 刘长海, 等. Ni-P/Ni-Mo-P镀层耐腐蚀性研究[J]. 材料保护, 2002, 35（11）: 15-17.
Zhang Y, Wang Y L, Liu C H, et al. Corrosion resistance of Ni-P/Ni-Mo-P alloy coatings[J]. Journal of Materials Protection, 2002, 35（11）: 15-17 （in Chinese）.
[6] Michal C, Petr D. Adhesion of zinc hot-dip coatings[J]. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2014, 62（1）: 53-64.
[7] 冯宇飞, 宋义全, 安玥. Mg-Zn-Mn合金的铸态组织及耐腐蚀性[J]. 金属热处理, 2016, 41（10）: 29-33.
Feng Y F, Song Y Q, An Y. Microstructure and corrosion resistance of Mg-Zn-Mn alloy as-cast[J]. Heat Treatment of Materials, 2016, 41（10）: 29-33 （in Chinese）.
[8] Hsu C H, Chen Y D, Huang D H. Corrosion resistance of tool steel arc-deposited Cr-N-O double-layered coatings in 3.5% sodium chloride[J]. Corrosion, 2008, 64（8）: 681-686.
[9] 祝跚珊. 脉冲电沉积制备铝及铝镁合金的研究[D]. 沈阳: 沈阳大学, 2016.
备注/Memo
收稿日期： 2020-05-20；修回日期： 2020-06-14
通信作者： 刘品潇， email： lpinxiao@163.com
基金项目： 民生科技发展计划项目（182107000037）