[1]李孝坤*,刘抒影,刘 忻.钕铁硼化学镀防护及在模拟海洋大气环境中的腐蚀行为[J].电镀与精饰,2022,(1):29-34.[doi:10.3969/j.issn.1001-3849.2022.01.005]
　LI Xiaokun*,LIU Shuying,LIU Xin.Protection of NdFeB by Electroless Plating and Its Corrosion Behavior in Simulated Marine Atmosphere[J].Plating & Finishing,2022,(1):29-34.[doi:10.3969/j.issn.1001-3849.2022.01.005]
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钕铁硼化学镀防护及在模拟海洋大气环境中的腐蚀行为()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2022年1
页码:
29-34
栏目:
出版日期:
2022-01-09

文章信息/Info

Title:
Protection of NdFeB by Electroless Plating and Its Corrosion Behavior in Simulated Marine Atmosphere
作者:
李孝坤1; 2*; 刘抒影1; 2; 刘 忻3
(1.黄河水利职业技术学院,河南 开封 475004; 2.河南省绿色涂层材料工程技术研究中心,河南 开封 475004; 3.苏州科技大学,江苏 苏州 215009)
Author(s):
LI Xiaokun12*;  LIU Shuying12;  LIU Xin3
(1.Yellow River Conservancy Technical Institute Kaifeng 475004 China; 2.Henan Engineering Technology Research Center of Green Coating Materials Kaifeng 475004 China; 3.Suzhou University of Science and Technology Suzhou 215009 China)
关键词:
化学镀层; 钕铁硼; 腐蚀行为; 模拟海洋大气环境
Keywords:
electroless coating;  NdFeB;  corrosion behavior;  simulated marine atmosphere
分类号:
TQ153
DOI:
10.3969/j.issn.1001-3849.2022.01.005
文献标志码:
A
摘要:
采用化学镀方法在钕铁硼表面分别制备Ni-P合金镀层、Ni-Mo-P合金镀层、Ni-P/PTFE复合镀层和Ni-Mo-P/PTFE复合镀层，并研究了不同化学镀层在模拟海洋大气环境中的腐蚀行为。结果表明：Ni-P合金镀层、Ni-Mo-P合金镀层、Ni-P/PTFE复合镀层和Ni-Mo-P/PTFE复合镀层都完整覆盖钕铁硼表面，它们的粗糙度差别不大，在模拟海洋大气环境中的腐蚀失重都低于钕铁硼的腐蚀失重，容抗弧半径增大且电荷转移电阻有不同程度的提高。与Ni-P合金镀层和Ni-Mo-P合金镀层相比，Ni-P/PTFE复合镀层和Ni-Mo-P/PTFE复合镀层具有优良的耐腐蚀性能，原因在于PTFE颗粒较均匀的沉积在镀层表面增加一道屏蔽层，也起到阻碍腐蚀介质渗透腐蚀的作用。尤其是Ni-Mo-P/PTFE复合镀层，其表面更致密，PTFE颗粒沉积更均匀，能更有效延缓腐蚀介质与钕铁硼接触，显著提高钕铁硼在模拟海洋大气环境中的耐腐蚀性能。
Abstract:
Ni-P alloy coating， Ni-Mo-P alloy coating， Ni-P/PTFE composite coating and Ni-Mo-P/PTFE composite coating were prepared on the surface of NdFeB by electroless plating respectively， and the corrosion behavior of different electroless coatings in simulated marine atmosphere was studied. The results showed that Ni-P alloy coating， Ni-Mo-P alloy coating， Ni-P/PTFE composite coating and Ni-Mo-P/PTFE composite coating were completely covered the surface of NdFeB， and there was little difference in their roughness. The corrosion weight loss of different electroless coatings in simulated marine atmosphere was lower than that of NdFeB， the radius of capacitive reactance arc was increased and the charge transfer resistance was increased in different degrees. Compared with Ni-P alloy coating and Ni-Mo-P alloy coating， Ni-P/PTFE composite coating and Ni-Mo-P/PTFE composite coating showed excellent corrosion resistance， the reason was that PTFE particles were evenly deposited on surface of the coating to form an additional shielding layer， which could also plays a role in preventing the erosion of corrosive media. Especially for Ni-Mo-P/PTFE composite coating， its surface was denser and PTFE particle deposited more uniform， which could more effectively delay the contact between corrosive medium and NdFeB， and then significantly improved the corrosion resistance of NdFeB in the simulated marine atmosphere

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备注/Memo

备注/Memo:
收稿日期： 2021-05-18 修回日期： 2021-06-10 通信作者： 李孝坤（1982－），男，硕士，讲师，主要研究方向：腐蚀与防护、化学分析检测等，email：li_kaifeng004@163.com。
更新日期/Last Update: 2022-01-07