| 电沉积方式对Ni-SiC纳米复合镀层性能的影响 |
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| 引用本文： | 王琳,路金林,刘坤,何龙龙,郑奇,罗晓媛.电沉积方式对Ni-SiC纳米复合镀层性能的影响[J].表面技术,2017,46(6):180-184. |
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| 作者姓名： | 王琳 路金林 刘坤 何龙龙 郑奇 罗晓媛 |
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| 作者单位： | 辽宁科技大学 材料与冶金学院,辽宁 鞍山 114051;大连交通大学 材料科学与工程学院,辽宁 大连 116028;辽宁科技大学 材料与冶金学院,辽宁 鞍山,114051 |
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| 基金项目： | 国家自然科学基金项目，辽宁科技大学青年基金项目，国家级大学生创新创业训练计划，辽宁科技大学大学生创新创业训练计划(2016010) Supported by National Natural Science Foundation，Youth Foundation of University of Science and Technology Liaoning，National Undergraduate Training Programs for Innovation and Entrepreneurship，University of Science and Technology Liaoning Undergraduate Training Programs for Innovation and Entrepreneurship |
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| 摘 要： | 目的通过研究电沉积方式对Ni-SiC纳米复合镀层性能的影响,进而改善Ni-SiC纳米复合镀层的性能。方法采用直流电沉积和脉冲电沉积分别制备Ni和Ni-SiC纳米复合镀层,使用扫描电镜和能谱仪研究镀层的表面形貌和成分,通过测量施镀前后镀件质量差计算沉积速率,采用硬度计测量了镀层的硬度,利用极化曲线和电化学阻抗方法研究镀层在3.5%NaCl水溶液中的耐腐蚀性能,分析了直流电沉积方式和脉冲电沉积方式对镀层各项性能的影响。结果脉冲电沉积方式制备的Ni-SiC纳米复合镀层的表面形貌更加致密、均匀、光滑,镀层硬度为616.3HV,自腐蚀电流为9.56×10~(-6) A,比直流电沉积制备的Ni-SiC纳米复合镀层的硬度和耐蚀性能均有所提高。结论电沉积方式对复合镀层的性能有很大影响,脉冲电沉积方式制备的Ni-SiC纳米复合镀层具有更好的性能。
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| 关 键 词： | 直流电沉积 脉冲电沉积 纳米复合镀层 组织结构 硬度 耐蚀性 沉积速率 |
| 收稿时间： | 2017/1/25 0:00:00 |
| 修稿时间： | 2017/6/20 0:00:00 |
Effect of Electrodeposition Method on Properties of Ni-SiC Nanocomposite Coatings |
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| WANG Lin,LU Jin-lin,LIU Kun,HE Long-long,ZHENG Qi and LUO Xiao-yuan.Effect of Electrodeposition Method on Properties of Ni-SiC Nanocomposite Coatings[J].Surface Technology,2017,46(6):180-184. |
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| Authors: | WANG Lin LU Jin-lin LIU Kun HE Long-long ZHENG Qi and LUO Xiao-yuan |
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| Affiliation: | 1.School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China;2.School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China,School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China,School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China,School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China,School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China and School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China |
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| Abstract: | The work aims to improve properties of Ni-SiC nanocomposite coatings by investigating effects of electrodeposi-tion methods on properties of the coating. Ni and Ni-SiC nanocomposite coatings were prepared by DC electrodeposition and pulse electrodeposition, respectively. Morphology and composition of the coatings were studied with scanning electron micro-scopy and energy dispersive spectrometer, deposition rate was calculated by measuring mass difference between the plating pieces before and after plating, hardness was measured with hardness tester, corrosion resistance of the Ni-SiC nanocomposite coatings was studied in polarization curve and electrochemical impedance methods, respectively in 3.5% NaCl solution, and the effects of DC electrodeposition and pulse electrodeposition methods on properties of the coatings were analyzed. For the Ni-SiC nanocomposite coating prepared in pulse electrodeposition method, morphology was more smooth, uniform and compact, the hardness was up to 616.3HV, self-corrosion current 9.56×10?6 A, both hardness and corrosion resistance were superior to that of the Ni-SiC nanocomposite coating prepared by DC electrodeposition. The properties of composite coatings are influenced by electrodeposition methods to a great extent, the properties of Ni-SiC nanocomposite coatings prepared in pulsed electrodeposi-tion method are much better. |
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| Keywords: | electrodeposition method nanocomposite coating microstructure hardness corrosion resistance deposition rate |
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