ZHANG Xuena,FENG Beibei,SUO Wenhua,et al.Study on the Process and Mechanical Properties of Ni-GO Composite Coating Prepared by Electrodeposition[J].Plating & Finishing,2020,(8):1-6.[doi:10.3969/j.issn.1001-3849.2020.08.0010]
电沉积法制备Ni-GO复合镀层的工艺及力学性能研究
- Title:
- Study on the Process and Mechanical Properties of Ni-GO Composite Coating Prepared by Electrodeposition
- 文献标志码:
- A
- 摘要:
- 采用电沉积方法制备了镍-氧化石墨烯（Ni-GO）复合镀层，采用SEM、XRD分析了Ni-GO复合镀层的表面形貌、组织结构和组分含量，研究了氧化石墨烯浓度、沉积电流密度和温度对复合镀层微观结构的影响规律，并对镀层的力学性能进行了测试分析。结果表明，在沉积电流密度2 A/dm2、氧化石墨烯浓度0.2 g/L、沉积温度50 ℃的工艺条件下，制备出了石墨烯在镍基体中均匀分布的镀层，制备的复合材料显微硬度达到了600 HV，约为纯镍的2倍。XRD测试结果表明加入的氧化石墨烯改善了材料的晶粒尺寸分布，抑制了镍的生长且细化了晶粒，从而提高了复合材料的力学性能。
- Abstract:
- Ni-GO composite coatings were prepared by electrodeposition method. The surface morphology, microstructure and composition content of Ni-GO composite coatings were tested by SEM and XRD, and the effect of graphene oxide (GO) concentration, current density and temperature on the properties of composite coatings were studied. The mechanical properties of Ni-GO composite coating were tested. The results showed that the graphene reinforced nickel-based material grew uniform spherical structure on the surface when the current density of 2 A/dm2, the deposition temperature of 50 ℃ and the GO concentration of 0.2 g/L, the microhardness of the composite material reached 600 HV, which was 2 times than that of pure nickel. The XRD results showed that the graphene improved the grain size of the material, inhibited the growth of nickel and refined the grain size, thus improving the mechanical properties of the composite.
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备注/Memo
收稿日期： 2020-02-29；修回日期： 2020-05-26
作者简介： 张雪娜（1983—），女，硕士，讲师，Email：413274605@qq.com
通讯作者： 张洪强，Email：qianghz2004@163.com