| 电流密度对AZ91D镁合金阳极氧化膜表面形貌及粘接性能的影响 |
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| 引用本文： | 蒋奎胜,唐聿明,赵旭辉,左禹.电流密度对AZ91D镁合金阳极氧化膜表面形貌及粘接性能的影响[J].材料研究学报,2010(3). |
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| 作者姓名： | 蒋奎胜 唐聿明 赵旭辉 左禹 |
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| 作者单位： | 北京化工大学材料科学与工程学院; |
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| 基金项目： | 教育部科学技术研究重点资助项目108129~~ |
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| 摘 要： | 采用恒电流方式在AZ91D镁合金表面制备多孔阳极氧化膜。通过电压-时间曲线研究了电流密度对氧化行为的影响。采用SEM、单板拉剪试验研究了电流密度对氧化膜表面形貌及拉伸强度的影响。结果表明,电流密度不影响击穿电压及临界电压的大小。随着电流密度增加,电压达到击穿电压及临界电压的时间缩短,氧化膜孔隙率及拉伸强度均先增加后减小,当电流密度为10 mA/cm~2时拉伸强度最大,可达到22.40 MPa。
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| 关 键 词： | 金属材料 镁合金 阳极氧化 电流密度 表面形貌 粘接性能 |
Influences of the Current Density on Surface Morphology and Adhesion of Anodic Films of AZ91D Magnesium Alloy |
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| JIANG Kuisheng TANG Yuming ZHAO Xuhui ZUO Yu.Influences of the Current Density on Surface Morphology and Adhesion of Anodic Films of AZ91D Magnesium Alloy[J].Chinese Journal of Materials Research,2010(3). |
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| Authors: | JIANG Kuisheng TANG Yuming ZHAO Xuhui ZUO Yu |
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| Affiliation: | JIANG Kuisheng TANG Yuming ZHAO Xuhui ZUO Yu~(**) (College of Materials Science & Engineering,Beijing University of Chemistry & Technology,Beijing 100029 ) |
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| Abstract: | Porous anodic films on AZ91D magnesium alloy were prepared at constant current densities.Effects of the current density on anodizing process were studied according to voltage-time response.The morphologies and adhesive properties of the anodic films were studied.The results showed that the current density had no effect on the value of breakdown voltage and critical voltage,but the anodizing time to reach breakdown voltage and critical voltage decreased as the current density increased. The porosity and the ... |
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| Keywords: | metallic materials magnesium alloy anodizing current density morphology adhesion |
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