金涛,何卫平,廖圣智,刘成臣,王浩伟,刁鹏.2024-T62铝合金涂层外场腐蚀环境下电化学性能研究[J].装备环境工程,2016,13(1):8-13,28. JIN Tao,HE Weiping,LIAO Shenzhi,LIU Chengchen,WANG Haowei,DIAO Peng.Electrochemical Property for 2024-T62 Aluminum Alloy Surface Protective Coating in the Presence of Outfield Corrosion[J].Equipment Environmental Engineering,2016,13(1):8-13,28.
2024-T62铝合金涂层外场腐蚀环境下电化学性能研究
Electrochemical Property for 2024-T62 Aluminum Alloy Surface Protective Coating in the Presence of Outfield Corrosion
投稿时间:2015-08-10  修订日期:2016-02-15
DOI:10.7643/issn.1672-9242.2016.01.002
中文关键词:  涂层  腐蚀环境  铝合金  电化学阻抗  耐蚀性能
英文关键词:coating  corrosion condition  aluminum alloy  electrochemical impedance  corrosion resistance
基金项目:工信部民机专项科研技术研究项目 (QK1212)
作者单位
金涛 1. 中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门 448035;2. 北京航空航天大学 材料科学与工程学院 空天材料与服役教育部重点实验室,北京 100191 
何卫平 中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门 448035 
廖圣智 中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门 448035 
刘成臣 中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门 448035 
王浩伟 中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门 448035 
刁鹏 北京航空航天大学 材料科学与工程学院 空天材料与服役教育部重点实验室,北京 100191 
AuthorInstitution
JIN Tao 1. China Special Vehicle Research Institute, Aviation Key Laboratory of Science and Technology on Structural Corrosion Prevention and Control, Jingmen 448035, China; 2. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China 
HE Weiping China Special Vehicle Research Institute, Aviation Key Laboratory of Science and Technology on Structural Corrosion Prevention and Control, Jingmen 448035, China 
LIAO Shenzhi China Special Vehicle Research Institute, Aviation Key Laboratory of Science and Technology on Structural Corrosion Prevention and Control, Jingmen 448035, China 
LIU Chengchen China Special Vehicle Research Institute, Aviation Key Laboratory of Science and Technology on Structural Corrosion Prevention and Control, Jingmen 448035, China 
WANG Haowei China Special Vehicle Research Institute, Aviation Key Laboratory of Science and Technology on Structural Corrosion Prevention and Control, Jingmen 448035, China 
DIAO Peng Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China 
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中文摘要:
      目的 评估自然暴露条件下涂层的耐蚀性能。方法 选取西沙热带海洋环境作为自然暴晒场, 开展2024-T62铝合金涂层 (N1和N2) 在湿热暴露、 紫外照射、 盐雾等综合腐蚀环境下的外场暴晒试验, 利用电化学测试方法对暴晒后涂层在3.5%NaCl溶液中浸泡不同时间的耐蚀性能进行研究。结果 铝合金涂层外场暴晒试验后, 电化学阻抗值下降, 综合腐蚀环境具有显明的加速作用。随着在3.5% NaCl溶液的浸泡时间增加, Ccoat-T值不断增大, Rcoat值不断减小。结论 N1铝合金涂层暴晒件电化学阻抗值较高, 具有较强的耐蚀性能。
英文摘要:
      Objective To evaluate the corrosion resistance performance of the coating under the condition of natural exposure. Methods Field exposure experiments of 2024-T62 aluminum alloy coating (N1 and N2) under comprehensive corrosion conditions including wet and heat exposure, UV irradiation and salt spray were carried out, selecting the tropical marine environment in Xisha as the natural exposure field. Electrochemical methods were adopted to investigate the corrosion resistance of the exposed coatings after immersing in 3.5% NaCl for different time. Results The results showed that the electrochemical impedance of the coating after the field exposure decreased, indicating the significant accelerating effect of the comprehensive corrosion condition, Ccoat-T increased and Rcoat decreased continuously with the elongation of immersion time in 3.5% NaCl. Conclusion The electrochemical impedance of the exposed N1 coating was relatively high, implying its strong corrosion resistance.
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