| 喷射电沉积Ni-Al2O3纳米复合镀层的组织及性能 |
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| 引用本文： | 陈劲松,黄因慧,田宗军,刘志东,贺毅强. 喷射电沉积Ni-Al2O3纳米复合镀层的组织及性能[J]. 材料科学与工程学报, 2010, 28(6) |
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| 作者姓名： | 陈劲松 黄因慧 田宗军 刘志东 贺毅强 |
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| 作者单位： | 淮海工学院,江苏,连云港,222005;南京航空航天大学,江苏,南京,210016 |
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| 基金项目： | 淮海工学院自然科学基金项目(Z2009003); 淮海工学院人才引进启动基金资助江苏省高校自然科学研究资助项目(09KJD430001) |
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| 摘 要： | 利用喷射电沉积工艺制备了Ni-Al2O3纳米复合镀层,分析了纳米Al2O3颗粒添加量、阴极电流密度以及电解液喷射速度对复合镀层中纳米颗粒含量的影响,采用扫描电镜(SEM)以及X-射线衍射仪对复合镀层的微观形貌进行了分析,研究了复合镀层中纳米颗粒含量对其显微硬度、结合强度、耐腐蚀性的影响。结果表明,镍沉积层具有纳米晶微观结构,平均晶粒尺寸约为50nm;纳米Al2O3颗粒在沉积层中的含量可达12.2at%;随Al2O3含量的提高,镀层显微硬度逐渐提高,结合强度和耐腐蚀性先提高后有所降低。
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| 关 键 词： | 喷射电沉积 纳米复合镀层 显微硬度 结合强度 |
Structure and Properties of Jet Electrodeposited Ni-Al_2O_3 Nanocomposite Coatings |
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| CHEN Jin-song,HUANG Yin-hui,TIAN Zong-jun,LIU Zhi-dong,HE Yi-qiang. Structure and Properties of Jet Electrodeposited Ni-Al_2O_3 Nanocomposite Coatings[J]. Journal of Materials Science and Engineering, 2010, 28(6) |
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| Authors: | CHEN Jin-song HUANG Yin-hui TIAN Zong-jun LIU Zhi-dong HE Yi-qiang |
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| Affiliation: | CHEN Jin-song1,HUANG Yin-hui2,TIAN Zong-jun2,LIU Zhi-dong2,HE Yi-qiang1(1.Huaihai Institute of Technology,Lianyungang 222005,China,2.Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China) |
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| Abstract: | Ni-Al_2O_3 nanocomposite coatings were fabricated by jet electrodeposition process.Effects of concentration of Al_2O_(3) in the electrolyte,current density and jet velocity of electrolyte on the content of nano-Al_2O_3 were analyzed.The microstructure of composite coatings was characterized by scanning microscopy(SEM) and X-ray diffractometry(XRD).Effects of nano-Al_2O_3 content on the microhardness,bond strength and corrosion resistance were evaluated.The results show that the deposited Ni layers are nanoc... |
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| Keywords: | jet-electrodeposited nano-composite coating microhardness bonding strength corrosion resistance |
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