| 不锈钢表面镀铝-热氧化处理制备氧化铝膜及其性能 |
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| 引用本文： | 周启来,薛丽红,沈涛,陈春浩,严有为.不锈钢表面镀铝-热氧化处理制备氧化铝膜及其性能[J].材料热处理学报,2012,33(2):142-148. |
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| 作者姓名： | 周启来 薛丽红 沈涛 陈春浩 严有为 |
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| 作者单位： | 1. 华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074／武汉武船计量试验有限公司,湖北武昌430060
2. 华中科技大学材料成形与模具技术国家重点实验室,湖北武汉,430074 |
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| 基金项目： | 国际热核聚变实验堆(ITER)计划专项，国家重点基础研究发展计划 |
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| 摘 要： | 采用无机熔融盐电镀铝、热浸镀铝工艺联合的方法在钢基材表面制备了一层平整、连续的铝镀层,研究了铝镀层在不同氧化时间下的氧化行为。利用X射线衍射仪(XRD)、扫描电镜(SEM)和能谱分析(EDS)对氧化层的形貌和成分进行分析,并考察了氧化层的硬度和耐腐蚀性能。结果表明:将无机熔融盐电镀铝法和热浸镀铝法相结合可获得良好的铝镀层;铝镀层在900℃下热处理20 h后,可获得连续致密的Al2O3膜;Al2O3层有效提高了钢基材的表面硬度和耐腐蚀性能。
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| 关 键 词： | Al2O3膜 电镀铝 热浸镀铝 高温氧化 |
Preparation and properties of alumina films on stainless steel by electroplating aluminum hot dip aluminizing and high temperature oxidation |
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| ZHOU Qi-lai,XUE Li-hong,SHEN Tao,CHEN Chun-hao,YAN You-wei.Preparation and properties of alumina films on stainless steel by electroplating aluminum hot dip aluminizing and high temperature oxidation[J].Transactions of Materials and Heat Treatment,2012,33(2):142-148. |
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| Authors: | ZHOU Qi-lai XUE Li-hong SHEN Tao CHEN Chun-hao YAN You-wei |
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| Affiliation: | 1(1.State Key Laboratory of Die and Mould Technology,Huazhong University of Science and Technology, Wuhan 430074,China;2.Wuhan Wuchuan Measurement and Test Co Ltd,Wuchang 430060,China) |
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| Abstract: | Smooth and continuous aluminum coatings on stainless steel surface was prepared by electroplating aluminum and hot dip aluminizing.Oxidation behavior of the aluminum coatings at high temperatures was investigated.Morphology and composition of the coatings after oxidation were studied by scanning electron microscopy(SEM),EDS analysis and X-ray diffraction(XRD).Surface hardness and corrosion resistance of the oxidized coatings were examined.The results show that aluminum coatings with high stability and quality can be achieved by electroplating aluminum and then hot dip aluminizing.A continuous and dense Al2O3 film in the coatings is obtained after oxidation at 900 ℃ for 20 h,which greatly improves surface hardness and corrosion resistance of the coatings. |
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| Keywords: | Al2O3 film hot dip aluminizing electroplating high temperature oxidation |
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