Yao Lunfang,Yang Qiang,Liu Dingfu*.Effect of nano-Al 2 O 3 doping on corrosion resistance of electroless Ni-Cu-P coating[J].Plating & Finishing,2023,(11):27-31.[doi:10.3969/j.issn.1001-3849.2023.11.004]
纳米Al2O3颗粒掺杂对化学镀Ni-Cu-P镀层耐蚀性的影响
- Title:
- Effect of nano-Al 2 O 3 doping on corrosion resistance of electroless Ni-Cu-P coating
- 关键词:
- 化学镀; 纳米 Al 2 O 3 ; 复合镀层; 耐蚀性
- Keywords:
- electroless plating ; nano Al 2 O 3 ; composite coating ; corrosion resistance
- 摘要:
- 为提高镀锌铁片表面化学镀层 Ni-Cu-P 的耐蚀性,在镀液中添加纳米 Al 2 O 3 颗粒制备了 Ni-Cu-P-Al 2 O 3 复合镀层。采用贴滤纸法、扫描电镜( SEM )及其附带的能谱仪( EDS )、电化学工作站对镀层孔隙率、表面形貌、元素含量及耐蚀性进行测试分析。结果表明,掺杂纳米 Al 2 O 3 颗粒得到的 Ni-Cu-P-Al 2 O 3 复合镀层相较于 Ni-Cu-P 镀层孔隙率降低了 0.02 N/cm 2 、腐蚀电流降低了 2.01×10 -8 A/cm 2 、腐蚀电位正移了 0.015 V 。
- Abstract:
- : In order to improve the corrosion resistance of electroless Ni-Cu-P coating on galvanized iron sheet , composite Ni-Cu-P-Al 2 O 3 coating was prepared by adding nano-Al 2 O 3 particles into the plating solution. The porosity , hardness , surface morphology , element content and corrosion resistance of the coating were analyzed by filter paper method , hardness tester , scanning electron microscope ( SEM ) and its attached energy dispersive spectrometer ( EDS ), and electrochemical workstation. The results show that the porosity of Ni-Cu-P-Al 2 O 3 composite coating doped with nano-Al 2 O 3 particles decreases by 0.02 N/cm 2 , the corrosion current decreases by 2.01×10 -8 A/cm 2 , and the corrosion potential increases by 0.015 V compared with Ni-Cu-P coating.
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备注/Memo
收稿日期: 2022-11-17 修回日期: 2022-12-16 作者简介: 姚伦芳( 1987 ―),男,硕士,主要从事生态环境保护技术咨询工作, email : 670937300@qq.com * 通讯著者: 刘定富, email : liuxiao8989@163.com?/html>