Effect of Pulse Voltage in Plasma Electrolytic Oxidation on Structure of Ceramic Coatings on 2024 Aluminium Alloy
摘 要
在富含超细SiC粉末的电解液中,采用等离子电解氧化技术在铝合金表面生成耐蚀陶瓷膜,系统分析了脉冲电压对陶瓷膜厚度、生长动力学、组织结构和耐蚀性的影响。结果表明,在脉冲电压低于400 V时,随着脉冲电压的升高,陶瓷膜的厚度呈现缓慢增加趋势,电压低于400 V和高于400 V时出现不同的电流-时间变化曲线。随着脉冲电压的上升,陶瓷膜出现三种不同的组织结构,而且在NaCl溶液中显示出不同的耐蚀性。
Abstract
Ceramic coatings on the surface of 2024 alloy were prepared by plasma electrolytic oxidation(PEO) in the electrolyte solution rich in ultra-fine SiC powder. The effects of the pulse voltages on the thickness, growth mechanism, structures and corrosion behavior of coatings were systematically discussed. The results show that the thickness of the ceramic film increased slowly with increasing the pulse voltage, when the pulse voltages were lower than 400 V. The current density-time curves were very different when the pulse voltages were lower than 400 V and higher than 400 V. With the increase of the pulse voltages, three different surface morphologies of ceramic coatings were formed, and they exhibited different corrosion potentials and current densities in 3.5% NaCl solution.
中图分类号 TG174.4
所属栏目 试验研究
基金项目 国家自然科学基金(51201073); 江苏省高校优势学科建设工程项目
收稿日期 2013/2/21
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备注郭平义(1979-),副教授,博士,从事表面处理相关研究,
引用该论文: QIN Ze-shang,SHAO Yong,ZHANG Ming-tao,LI Wei-li,CHEN Yun-liang,GUO Ping-yi. Effect of Pulse Voltage in Plasma Electrolytic Oxidation on Structure of Ceramic Coatings on 2024 Aluminium Alloy[J]. Corrosion & Protection, 2013, 34(12): 1077
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参考文献
【1】郭平义,王晓璠,邵勇.1050纯铝微弧氧化陶瓷层的生长动力学与腐蚀性能研究[J]. 腐蚀科学与防护技术,2011,23:490-494.
【2】LIU G Y, HU J, DING Z K, et al. Bioactive calcium phosphate coating formed on micro-arc oxidized magnesium by chemical deposition[J]. Applied Surface Science,2011,257:2051-2057.
【3】孙志华,王志申,刘明,等.铝合金微弧氧化陶瓷层形成机理探讨[J].腐蚀与防护,2012:33:976-980.
【4】龙迎春,李文芳,张果戈,等.添加剂C6H12N4对6063铝合金微弧氧化黑色陶瓷膜结构与性能的影响[J].中国腐蚀与防护学报, 2012,32:388-392.
【5】王蕊,马跃洲,陈明,等.不同电压下镁合金的微弧氧化行为[J].腐蚀与防护,2011,32:363-365.
【6】YANG Y, LIU Y H, Effects of current density on the microstructure and the corrosion resistance of alumina coatings embedded with SiC nano-particles produced by micro-arc oxidation[J]. J Mater Sci Technol,2010,26(11):1016-1020.
【7】BAKHIT B, AKBARI A. Effect of particle size and co-deposition technique on hardness and corrosion properties of Ni-Co/SiC composite coatings[J]. Surface & Coatings Technology,2012,206:4964-4975.
【8】CAMPO M, CARBONERAS M, LóPEZ M D, et al. Corrosion resistance of thermally sprayed Al and Al/SiC coatings on Mg[J]. Surface & Coatings Technology,2009,203:3224-3230.
【2】LIU G Y, HU J, DING Z K, et al. Bioactive calcium phosphate coating formed on micro-arc oxidized magnesium by chemical deposition[J]. Applied Surface Science,2011,257:2051-2057.
【3】孙志华,王志申,刘明,等.铝合金微弧氧化陶瓷层形成机理探讨[J].腐蚀与防护,2012:33:976-980.
【4】龙迎春,李文芳,张果戈,等.添加剂C6H12N4对6063铝合金微弧氧化黑色陶瓷膜结构与性能的影响[J].中国腐蚀与防护学报, 2012,32:388-392.
【5】王蕊,马跃洲,陈明,等.不同电压下镁合金的微弧氧化行为[J].腐蚀与防护,2011,32:363-365.
【6】YANG Y, LIU Y H, Effects of current density on the microstructure and the corrosion resistance of alumina coatings embedded with SiC nano-particles produced by micro-arc oxidation[J]. J Mater Sci Technol,2010,26(11):1016-1020.
【7】BAKHIT B, AKBARI A. Effect of particle size and co-deposition technique on hardness and corrosion properties of Ni-Co/SiC composite coatings[J]. Surface & Coatings Technology,2012,206:4964-4975.
【8】CAMPO M, CARBONERAS M, LóPEZ M D, et al. Corrosion resistance of thermally sprayed Al and Al/SiC coatings on Mg[J]. Surface & Coatings Technology,2009,203:3224-3230.
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