铝镀层阳极氧化膜的制备
Fabrication of Anodized Electroplating Aluminum Coatings
摘 要
以0.5 mol/L硫酸为电解液, 利用离子液体电镀技术与阳极氧化相结合的方法在304不锈钢表面成功制备了含纳米级微孔的Al镀层。利用扫描电镜(SEM)、X射线能谱(EDS)和X射线衍射(XRD)对氧化铝模板及铝镀层阳极氧化后的组织进行形貌观察和晶相结构分析。结果表明, 加入体积分数1.25%的甲苯, 温度为55 ℃, 电流密度为20～25 mA/cm2时, 所得到的铝镀层平整致密, 且随电流密度的增大, 镀层铝晶粒尺寸越来越细小。不锈钢表面铝镀层经不同时间阳极氧化处理后, 镀层上出现了纳米级孔洞。XRD结果表明, 镀层上除了出现了铝相外, 还出现了非晶态Al2O3相。随氧化时间的延长, 非晶态Al2O3相增多, Al相减少, 氧化膜厚度增加, 表面孔洞尺寸增大。
阳极氧化
表面形貌
微孔
electroplating aluminum
anodization
surface morphology
micro-pore
Abstract
Aluminum film containing nano-porous was prepared on 304 stainless steel surface by combining electroplating from ionic liquids and anodizing in 0.5 mol/L sulfuric acid solution. The microstructure and morphology of electroplating aluminum coating on stainless steel were investigated by means of SEM, EDS and XRD. The results showed that a compact and well adherent aluminum coating was obtained under the conditions of 55 ℃, current density of 20~25 mA/cm2 and addition of toluene for volume fraction of 1.25%. The results showed that with the increase of the current density, the size of aluminum grains decreased. After anodic oxidation of the electroplating aluminum coat for different times, the surface of the coating exhibited nanometer micro pores. XRD results showed that the coating was composed of Al and amorphous Al2O3. With the extension of anodic oxidation time, the content of Al decreased, the content of amorphous Al2O3 increased, the thickness of oxidation film and the diameter of pores observed on the stainless steel surface also increased.
中图分类号 TQ153.1 TQ153.6
所属栏目 试验研究
基金项目
收稿日期 2011/5/27
修改稿日期 2011/6/30
网络出版日期
作者单位点击查看
备注梅天庆, 副教授,
引用该论文: PEI Yu-ru,MEI Tian-qing,YU Guang-nan. Fabrication of Anodized Electroplating Aluminum Coatings[J]. Corrosion & Protection, 2011, 32(11): 884
被引情况:
【1】龚循飞,陈东初,潘学著,吴开锋,叶树林, "铝合金阳极氧化膜电解着色工艺概况",腐蚀与防护 33, 362-365(2012)
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】李庆锋, 邱竹贤. 铝的电化学-生产与应用[M]. 沈阳: 东北大学出版社, 2003: 3-6, 240.
【2】邓友全. 离子液体-性质、制备与应用[M]. 第一版, 北京:中国石化出版社, 2006, 48-67:377-381.
【3】Zhao Y G, Vandernoot T J. Electrodepositon of aluminum from room temperature AlCl3-TMPAC molten salts[J]. Electrochemical Acta, 1997, 11:1639-1643.
【4】Reddy R G. Emerging technologies in extraction and processing metals, Metal.Mater.Trans.B, 2003, 34B(2):137-152.
【5】Wu B Q, Reddy R G, Rodgers R D. Aluminum recycling via near room temperature electrolysis in ionic liquids[C]//Fourth International Symposium on Recycling of Metals and Engineered Materials, PA:TMS, 2000:845-856.
【6】Yue G K, Lu X M, Zhu Y L, et al. Surface morphology, crystal structure and orientation of aluminum coatings electrodeposited on mild steel in ionic liquid[J]. Chemical Engineering Journal, 2009, 147, 79-86.
【7】马全宝, 张正富, 陈庆华, 等. 多孔型铝阳极氧化膜(AAO)等形貌及相结构分析[J]. 昆明理工大学学报(理工版), 2003, 28(5):54.
【8】丁志敏, 张浩, 沈长斌, 等. 钢基电镀铝层阳极氧化处理后的组织结构和性能[J]. 材料热处理学报, 2007, 增刊(28):202-205.
【2】邓友全. 离子液体-性质、制备与应用[M]. 第一版, 北京:中国石化出版社, 2006, 48-67:377-381.
【3】Zhao Y G, Vandernoot T J. Electrodepositon of aluminum from room temperature AlCl3-TMPAC molten salts[J]. Electrochemical Acta, 1997, 11:1639-1643.
【4】Reddy R G. Emerging technologies in extraction and processing metals, Metal.Mater.Trans.B, 2003, 34B(2):137-152.
【5】Wu B Q, Reddy R G, Rodgers R D. Aluminum recycling via near room temperature electrolysis in ionic liquids[C]//Fourth International Symposium on Recycling of Metals and Engineered Materials, PA:TMS, 2000:845-856.
【6】Yue G K, Lu X M, Zhu Y L, et al. Surface morphology, crystal structure and orientation of aluminum coatings electrodeposited on mild steel in ionic liquid[J]. Chemical Engineering Journal, 2009, 147, 79-86.
【7】马全宝, 张正富, 陈庆华, 等. 多孔型铝阳极氧化膜(AAO)等形貌及相结构分析[J]. 昆明理工大学学报(理工版), 2003, 28(5):54.
【8】丁志敏, 张浩, 沈长斌, 等. 钢基电镀铝层阳极氧化处理后的组织结构和性能[J]. 材料热处理学报, 2007, 增刊(28):202-205.
相关信息
