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[1]杜涌涛*,王杰杰,杨 苗,等.ZrO2颗粒浓度对钕铁硼Ni-P/ZrO2复合镀层耐蚀性的影响[J].电镀与精饰,2021,(5):30-35.[doi:10.3969/j.issn.1001-3849.2021.05.005]
　DU Yongtao*,WANG Jiejie,YANG Miao,et al.Effect of ZrO2 Particles Concentration on Corrosion Resistance of Ni-P/ZrO2 Composite Coatings on NdFeB[J].Plating & Finishing,2021,(5):30-35.[doi:10.3969/j.issn.1001-3849.2021.05.005]
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ZrO2颗粒浓度对钕铁硼Ni-P/ZrO2复合镀层耐蚀性的影响

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG] 卷: 期数: 2021年5 页码: 30-35 栏目: 出版日期: 2021-05-17
Title:
Effect of ZrO2 Particles Concentration on Corrosion Resistance of Ni-P/ZrO2 Composite Coatings on NdFeB
作者:
杜涌涛1*; 王杰杰1; 杨 苗1; 王 宏2
1.河北英博认证有限公司，河北 石家庄 050000； 2.大同煤炭职业技术学院，山西 大同 037003
Author(s):
DU Yongtao1*;  WANG Jiejie1;  YANG Miao1;  WANG Hong2
1. Hebei Yingbo Certification Co. Ltd.， Shijiazhuang 050000， China； 2. Datong Coal Vocational and Technical College， Datong 037003， China
关键词:
耐蚀性; Ni-P/ZrO2复合镀层; ZrO2颗粒浓度; 钕铁硼
Keywords:
corrosion resistance Ni-P/ZrO2 composite coatings ZrO2 particles concentration NdFeB
DOI:
10.3969/j.issn.1001-3849.2021.05.005
文献标志码:
A
摘要:
采用化学镀技术在钕铁硼表面制备出Ni-P/ZrO2复合镀层，并研究了ZrO2颗粒浓度对复合镀层中ZrO2颗粒含量、复合镀层的形貌、孔隙率和耐蚀性的影响。结果表明，ZrO2颗粒浓度在0.5~4.0 g/L范围内时，复合镀层的耐蚀性随着ZrO2颗粒浓度增加逐步改善，在不同腐蚀介质中的平均腐蚀速率都呈现减小的趋势，主要归因于复合镀层中ZrO2颗粒含量升高以及复合镀层表面趋于光滑平整，且孔隙率明显降低。但ZrO2颗粒浓度超过一定限度后，复合镀层中ZrO2颗粒含量下降，加之孔隙率升高和表面平整度有所下降，导致耐蚀性变差。ZrO2颗粒浓度为4.0 g/L制备的复合镀层具有良好的耐蚀性，但在不同腐蚀介质中其耐蚀性存在一定的差异。该复合镀层腐蚀前后的形貌差异不太明显，而钕铁硼腐蚀前后的形貌有明显的差异，表明该复合镀层在不同腐蚀介质中的耐蚀性明显好于钕铁硼。
Abstract:
Ni-P/ZrO2 composite coatings were prepared on the surface of NdFeb by electroless plating, and the effect of ZrO2 particles concentration on the content of ZrO2 particles in composite coatings, the morphology, porosity and corrosion resistance of composite coatings were studied. The results showed that when ZrO2 particle concentration was in the range of 0.5~4.0 g/L, the corrosion resistance of composite coatings was gradually improved with the increase of ZrO2 particle concentration, and the average corrosion rate in different corrosive media presents a trend of decrease, which was mainly attributed to the increase of the content of ZrO2 particles in composite coatings, more uniform surface and significantly reduced porosity. However, when the ZrO2 particles concentration exceeds a certain limit, the content of ZrO2 particles in composite coatings decreased, along with the increase of porosity and the decrease of surface roughness, resulting in the deterioration of corrosion resistance. The composite coating prepared with 4.0 g/L ZrO2 particles exhibited good corrosion resistance, but its corrosion resistance varies in different corrosive media. The morphology difference of the composite coating before and after corrosion was not very significant, while the morphology difference of NdFeB before and after corrosion was significantly different, indicating that the corrosion resistance of this composite coating in different corrosive media was obviously better than that of NdFeB.

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备注/Memo

收稿日期： 2020-08-01；修回日期： 2020-09-04
通信作者： 杜涌涛，Email：du_education00@163.com
河北省青年基金项目（QN2019328

更新日期/Last Update: 2021-05-10