| 铝基表面等离子喷涂Al2O3-TiO2-Ta涂层的制备及防腐性能 |
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| 引用本文： | 黄丰,聂铭,周文浩,王珍高,付如民,宁成云. 铝基表面等离子喷涂Al2O3-TiO2-Ta涂层的制备及防腐性能[J]. 稀有金属材料与工程, 2019, 48(8): 2689-2693 |
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| 作者姓名： | 黄丰 聂铭 周文浩 王珍高 付如民 宁成云 |
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| 作者单位： | 广东电网有限责任公司电力科学研究院,广东电网有限责任公司电力科学研究院,华南理工大学,华南理工大学,华南理工大学,华南理工大学 |
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| 基金项目： | 中国南方电网有限责任公司科技项目(项目号GDKJXM00000017),国家自然科学基金资助(项目号51772106) |
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| 摘 要： | 采用等离子喷涂技术在铝基表面构建Al2O3-TiO2涂层和Al2O3-TiO2-Ta涂层。由于钽元素的引入,Al2O3-TiO2-Ta涂层表面形貌更均匀、致密。同时钽金属具有极强的耐酸碱特性,因此,Al2O3-TiO2-Ta涂层相对于Al2O3-TiO2涂层具有更强的耐腐蚀性。Tafel曲线结果显示,Al2O3-TiO2涂层使得基体的腐蚀电位仅正移了99.6 mV,Al2O3-TiO2-Ta涂层使得铝基体腐蚀电位正移了208.9 mV。因此,由于耐蚀性极强的Ta金属的掺入,Al2O3-TiO2涂层的防腐性得到了极大的增强,Al2O3-TiO2-Ta涂层有效地防止铝合金腐蚀。
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| 关 键 词： | 等离子喷涂 耐蚀涂层 铝合金 |
| 收稿时间： | 2018-03-06 |
| 修稿时间： | 2018-04-04 |
Preparation and corrosion protection of Al2O3-TiO2-Ta coating on aluminum surface by plasma spraying |
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| Feng Huang,Ming Nie,Wenhao Zhou,Zhengao Wang,Ruming Fu and Chengyun Ning. Preparation and corrosion protection of Al2O3-TiO2-Ta coating on aluminum surface by plasma spraying[J]. Rare Metal Materials and Engineering, 2019, 48(8): 2689-2693 |
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| Authors: | Feng Huang Ming Nie Wenhao Zhou Zhengao Wang Ruming Fu Chengyun Ning |
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| Affiliation: | Guangdong Power Grid Co,Ltd Electric Power Research Institute,Guangdong Power Grid Co,Ltd Electric Power Research Institute,South China University of Technology,South China University of Technology,South China University of Technology,South China University of Technology |
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| Abstract: | Plasma-sprayed Al2O3-TiO2 and Al2O3-TiO2-Ta coatings were fabricated on aluminum substrates. Due to the introduction of tantalum, Al2O3-TiO2-Ta coating surface morphology is more uniform and compact. At the same time tantalum metal has a very strong acid and alkali resistance, therefore, Al2O3-TiO2-Ta coating relative to the Al2O3-TiO2 coating has a stronger corrosion resistance. The results of Tafel curves show that the corrosion potential of Al2O3-TiO2 coatings shifts the positive corrosion potential by 99.6 mV, and that of Al2O3-TiO2-Ta coatings shifts the corrosion potential of Al by 208.9 mV. Therefore, the corrosion resistance of Al2O3-TiO2 has been greatly enhanced due to the incorporation of Ta metal with high corrosion resistance. The Al2O3-TiO2-Ta coating can effectively prevent the corrosion of the aluminum alloy. |
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| Keywords: | Plasma spraying Corrosion-resistant coating Aluminum alloy |
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