| 电流密度对钛合金微弧氧化膜的影响 |
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| 引用本文： | 刘忠德,向正群,张中元,孙茂坚,付华.电流密度对钛合金微弧氧化膜的影响[J].轻金属,2008(1):48-51. |
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| 作者姓名： | 刘忠德 向正群 张中元 孙茂坚 付华 |
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| 作者单位： | 1. 江苏大学材料科学与工程学院,江苏,镇江,212013
2. 镇江市镇特合金材料有限公司,江苏,镇江,212006 |
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| 摘 要： | 采用交流微弧氧化法于Na2SiO3、Na3PO4溶液中在Ti6A14V表面形成了氧化物陶瓷膜.研究了电流密度对电压、厚度、相组成、氧化膜与基体的结合力、耐腐蚀性能的影响.结果表明,随着电流密度的增大,氧化膜终止电压升高,氧化膜的厚度逐渐增加.氧化膜主要由锐铁矿和金红石相TiO2组成,随着氧化膜中金红石相TiO2的含量增加,氧化膜与基体的结合力逐渐降低,并趋于持平.氧化膜在30%的硫酸溶液中耐腐蚀性能稍有降低.
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| 关 键 词： | 钛合金 微弧氧化 氧化膜 结合力 耐腐蚀性能 |
| 文章编号： | 1002-1752（2008）01-48-4 |
| 收稿时间： | 2007-11-08 |
Effect of current density on Titanium alloy micro-arc oxidation coating |
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| LIU Zhong-de,XIANG Zheng-qun,ZHANG Zhong-yuan,SUN Mao-jian,FU Hua.Effect of current density on Titanium alloy micro-arc oxidation coating[J].Light Metals,2008(1):48-51. |
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| Authors: | LIU Zhong-de XIANG Zheng-qun ZHANG Zhong-yuan SUN Mao-jian FU Hua |
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| Abstract: | Ceramic oxide coatings were formed on Ti6A14V alloy surface by micro-arc oxidation(MAO) in Na2SiO3,Na3PO4 solution using an AC power supply.The influence of current density on the cut-off discharge voltage,thickness,phase composition,adhesion of oxide coating to substrate,anticorrosive property were studied.It is found that cut-off discharge voltage and thickness increase with the increase of current density.On the other hand,anticorrosive property slightly become weak in sulfuric acid solution(30%).Adhesion of oxide coatings to substrate gradually decreases and remains constant,with the increasing rutile TiO2 content of the oxide coating which is composed of anatase type and rutile TiO2. |
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| Keywords: | titanium alloy micro - arc oxidation oxide coating adhesion anticorrosive property |
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