| AZ91D镁合金表面等离子喷涂Al_2O_3-TiO_2陶瓷涂层的微观组织及防护性能 |
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| 引用本文： | 孙焕焕,常文军,吴凤双.AZ91D镁合金表面等离子喷涂Al_2O_3-TiO_2陶瓷涂层的微观组织及防护性能[J].沈阳理工大学学报,2014(2):9-12,55. |
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| 作者姓名： | 孙焕焕 常文军 吴凤双 |
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| 作者单位： | [1] 沈阳理工大学材料科学与工程学院,辽宁沈阳110159 [2] 大连升隆机械有限公司,辽宁大连116300 [3] 辽宁恒信铝业有限公司,辽宁铁岭112000 |
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| 基金项目： | 辽宁省教育厅项目（L2012066） |
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| 摘 要： | 采用大气等离子喷涂技术在AZ91D镁合金表面制备Al2O3-TiO2陶瓷涂层。对涂层的显微组织、化学成分、相组成及显微硬度进行表征,并对涂层的耐磨损和耐电化学腐蚀防护性能进行研究。结果表明,Al2O3-TiO2陶瓷涂层的组织呈现层状结构,主要组成相为α-Al2O3、γ-Al2O3和金红石TiO2。涂层平均硬度654.2HV,涂层具有良好的抗磨损和抗电化学腐蚀防护性能。
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| 关 键 词： | 等离子喷涂 镁合金 陶瓷涂层 耐磨性 电化学腐蚀 |
Microstructures and Protective Performances of Al2O3-TiO2 Ceramic Coating on AZ91D Magnesium Alloy Prepared by Plasma Spraying |
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| SUN Huanhuan,CHANG Wenjun,WU Fengshuang.Microstructures and Protective Performances of Al2O3-TiO2 Ceramic Coating on AZ91D Magnesium Alloy Prepared by Plasma Spraying[J].Transactions of Shenyang Ligong University,2014(2):9-12,55. |
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| Authors: | SUN Huanhuan CHANG Wenjun WU Fengshuang |
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| Affiliation: | 3 Shenyang Ligong University, Shenyang 110159 ,China;2. Dalian Sheng Long Machinery Co. Ltd. ,Dalian 116300, China 3. Liaoning Heng Xin Aluminum Co. Ltd. , Tieling 112000, China) |
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| Abstract: | Al2O3-TiO2 ceramic coating was fabricated on AZ91D magnesium alloy by air plasma spraying technology. The microstructures, chemical compositions, phase were ana- lyzed, and microhardness of the coating was tested. The wear resistance and electrochemical corrosion resistance of the coating were studied. The results indicate that the Al2O3-TiO2 ce- ramic coating shows the lamellar structure, and it consists mainly of α-Al2O3 γ-Al2O3and ruffle TiO2. The average microhardness of the coating is 654. 2HV. Al2O3-TiO2 ceramic coating has excellent wear resistance and electrochemical corrosion resistance. |
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| Keywords: | plasma spraying magnesium alloy ceramic coating wear resistance electro-chemical corrosion resistance |
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