| AZ91镁合金表面制备Ni-SiO2纳米复合电镀层的工艺研究 |
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| 引用本文： | 张昕,张秀芝,朱华军,孔换明,刘培培.AZ91镁合金表面制备Ni-SiO2纳米复合电镀层的工艺研究[J].表面技术,2012,41(4):68-70. |
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| 作者姓名： | 张昕 张秀芝 朱华军 孔换明 刘培培 |
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| 作者单位： | 太原科技大学,太原,030024;太原科技大学,太原,030024;太原科技大学,太原,030024;太原科技大学,太原,030024;太原科技大学,太原,030024 |
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| 摘 要： | 采用复合电沉积技术在AZ91镁合金表面制备Ni-SiO2纳米复合镀层,并研究各工艺参数对镀层的影响,从而得出最佳工艺.研究结果表明:在镀液中纳米SiO2的添加量为20 g/L,阴极电流密度为1.0 A/dm2,镀液温度为50℃,活性剂A的添加量为1.0 g/L,pH为5～6的条件下,经过20～30 min电沉积,可获得均匀、平滑的镀层,镀层的显微硬度与耐蚀性最佳.
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| 关 键 词： | 镁合金 纳米复合电镀 显微硬度 耐蚀性 |
| 收稿时间： | 2/7/2012 12:00:00 AM |
| 修稿时间： | 2012/8/20 0:00:00 |
Study on the Plating Process of Ni-SiO2 Coating for AZ91 Magnesium Alloys |
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| ZHANG Xin,ZHANG Xiu-zhi,ZHU Hua-jun,KONG Huan-ming and LIU Pei-pei.Study on the Plating Process of Ni-SiO2 Coating for AZ91 Magnesium Alloys[J].Surface Technology,2012,41(4):68-70. |
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| Authors: | ZHANG Xin ZHANG Xiu-zhi ZHU Hua-jun KONG Huan-ming and LIU Pei-pei |
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| Affiliation: | (Taiyuan University of Science and Technology,Taiyuan 030024,China) |
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| Abstract: | The nano-sized Ni-SiO2 coating was prepared on AZ91 magnesium alloys by composite electroplating,and the effect of process parameter on the coating was studied and the optimum process was obtained.The results show that the surface of the coating is smooth and the coating posesses the best micro-hardness and corrosion resistance when the content of nano-sized SiO2 and activator is 20 g/L and 1 g/L in the electroplating bath with pH value 5~6,respectively,and the electrodepositing time is 20~30 min at 50 ℃ and the the cathodic current density is 1 A/dm2. |
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| Keywords: | magnesium alloy nano-sized composite electroplating micro-hardness corrosion resistance |
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