帮助 关于我们

返回检索结果

镁合金表面PEF膜与PEO膜腐蚀防护行为的对比研究
Comparison of Corrosion Behaviour of PEF and PEO Coatings on Mg Alloys

查看参考文献33篇

齐玉明 1,2   刘思勤 1,2   罗兰 1   彭振军 1   梁军 1,2 *   王鹏 1,2  
文摘 目的对比研究镁合金表面新型等离子体电解氟化(PEF)膜与传统等离子体电解氧化(PEO)膜的腐蚀防护行为。方法分别在中性和酸性腐蚀介质中,通过开路电位监测和动态电位极化曲线测试表征了膜层的电化学腐蚀行为,通过浸泡实验和盐雾实验表征了膜层的长效腐蚀行为。通过SEM、EDS和XRD等方法表征了膜层的原始微观结构和组成,分析了腐蚀形貌和腐蚀产物。结果PEF膜与PEO膜均可以为镁合金基材提供有效的腐蚀防护作用。相较于PEO膜,PEF膜在浸泡实验和盐雾实验中,都具有更为优异的腐蚀防护性能,但在动态电位极化测试中,具有更正的自腐蚀电位和更大的自腐蚀电流密度,表明其腐蚀倾向更低,但腐蚀速率更高。结论总体而言,PEF膜在中性和酸性环境中都具有更好的腐蚀防护性能。PEO膜在中性环境中的腐蚀防护失效机制主要是腐蚀介质的扩散,在酸性环境中的腐蚀防护失效机制主要是膜层化合物的溶解和消耗;PEF膜在中性和酸性环境中的腐蚀防护失效机制都是腐蚀介质的扩散。
其他语种文摘 The work aims to compare the novel PEF coating and conventional PEO coating in terms of corrosion behavior. The electrochemical corrosion behavior was evaluated by means of OCP monitoring and potentiodynamic polarization tests in neutral and acidic corrosive media, while the long-term corrosion behavior by immersion and salt spraying tests. SEM, EDS and XRD were employed to characterize the coatings’ original microstructure and composition, as well as the characteristics of the corroded coatings and resultant corrosion products. The results show that the PEF coating was effective to protect Mg alloys from corrosion damage as well as the PEO coating. The PEF coating was performed better than the PEO coating in corrosion resistance during the immersion and salt spraying tests, but showed a higher corrosion potential and corrosion current density which respectively indicated a lower corrosion tendency and a higher corrosion rate. In sum, the PEF coating was performed better than the PEO coating in corrosion resistance. The corrosion failure of the PEF coating was mainly attributed to the diffusion of the neutral corrosive medium or the dissolution of the coating in acidic corrosive medium. The corrosion failure of the PEF coating was attributed to the diffusion of the corrosive media.
来源 表面技术 ,2021,50(6):41-54,147 【核心库】
DOI 10.16490/j.cnki.issn.1001-3660.2021.06.004
关键词 镁合金 ; 等离子体电解氟化 ; 等离子体电解氧化 ; 腐蚀防护行为
地址

1. 中国科学院兰州化学物理研究所, 固体润滑国家重点实验室, 兰州, 730000  

2. 中国科学院大学材料与光电研究中心, 北京, 100049

语种 中文
文献类型 研究性论文
ISSN 1001-3660
学科 金属学与金属工艺
基金 国家自然科学基金
文献收藏号 CSCD:7001787

参考文献 共 33 共2页

1.  张金玲. 镁合金和铝合金在汽车轻量化上的应用及发展趋势. 科技创新导报,2019,16(28):92-93 被引 2    
2.  杨甄鑫. 轻质合金在汽车轻量化中的应用. 汽车零部件,2021(1):107-113 被引 7    
3.  鞠鹏飞. 苛刻环境下材料表面防护技术的研究进展. 中国表面工程,2019,32(4):1-16 被引 15    
4.  齐玉明. 钛合金表面高硬度微弧氧化膜的制备和耐磨性研究. 表面技术,2019,48(7):81-88 被引 17    
5.  Ahmed M. Influence of Cu~(2+) ions on the corrosion resistance of AZ31 magnesium alloy with microarc oxidation. Materials,2020,13(11):2647 被引 1    
6.  陈姗姗. 多孔镁表面微弧氧化涂层和氟化学转化涂层的对比研究. 表面技术,2021,50(2):13-21 被引 3    
7.  刘灿灿. 微弧氧化镁合金长效耐腐蚀性能的优化与调控研究,2016 被引 1    
8.  Liang J. Influence of pH on the deterioration of plasma electrolytic oxidation coated AM50 magnesium alloy in NaCl solutions. Corrosion science,2010,52(2):540-547 被引 12    
9.  董海荣. 氟化钾对AZ91D镁合金微弧氧化膜的生长及微观结构的影响. 稀有金属材料与工程,2018,47(1):249-254 被引 11    
10.  Nemcova A. Effect of fluoride on plasma electrolytic oxidation of AZ61 magnesium alloy. Surface and coatings technology,2013,232:827-838 被引 4    
11.  Fu L. Preparation and characterization of fluoride-incorporated plasma electrolytic oxidation coatings on the AZ31 magnesium alloy. Coatings,2019,9(12):826 被引 1    
12.  Rehman Z U. Structure and corrosion properties of the two-step PEO coatings formed on AZ91D Mg alloy in K_2ZrF_6-based electrolyte solution. Surface and coatings technology,2016,307:484-490 被引 10    
13.  Song Y. Investigation of a novel self-sealing pore micro-arc oxidation film on AM60 magnesium alloy. Journal of magnesium and alloys,2013,1(1):82-87 被引 8    
14.  梁军. 一种非水电解液体系中的微弧氧化方法:中国, ZL201811302684.5,2018 被引 1    
15.  Qi Y. Fluoride-dominated coating on Mg alloys fabricated by plasma electrolytic process in ambient non-aqueous electrolyte. Surface engineering,2020,37(3):360-364 被引 1    
16.  Liang J. Comparison of electrochemical corrosion behaviour of MgO and ZrO_2 coatings on AM50 magnesium alloy formed by plasma electrolytic oxidation. Corrosion science,2009,51(10):2483-2492 被引 34    
17.  Yang J. Microstructure and corrosion behavior of Ca/P coatings prepared on magnesium by plasma electrolytic oxidation. Surface and coatings technology,2017,319:359-369 被引 10    
18.  Blawert C. Anodizing treatments for magnesium alloys and their effect on corrosion resistance in various environments. Advanced engineering materials,2006,8(6):511-533 被引 36    
19.  Duan H. Electrochemical corrosion behavior of composite coatings of sealed MAO film on magnesium alloy AZ91D. Electrochimica acta,2006,51(14):2898-2908 被引 22    
20.  Guo Huixia. Corrosion behavior of micro-arc oxidation coating on AZ91D magnesium alloy in NaCl solutions with different concentrations. Transactions of Nonferrous Metals Society of China,2012(7):1786-1793 被引 21    
引证文献 1

1 杨帆 纳米BN颗粒对7075铝合金微弧氧化膜结构及耐磨性能的影响 材料保护,2023,56(7):17-24,89
被引 0 次

显示所有1篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护:中国科学院文献情报中心
地址:北京中关村北四环西路33号 邮政编码:100190 联系电话:(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号