| 激光重熔喷射电沉积纳米结构镍涂层性能研究 |
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| 引用本文： | 王东生,黄因慧,田宗军,刘志东,朱军. 激光重熔喷射电沉积纳米结构镍涂层性能研究[J]. 激光技术, 2008, 32(3): 231-231 |
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| 作者姓名： | 王东生 黄因慧 田宗军 刘志东 朱军 |
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| 作者单位： | 南京航空航天大学,江苏省精密与微细制造技术重点实验室,南京,210016;南京航空航天大学,机电学院,南京,210016;南京航空航天大学,机电学院,南京,210016 |
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| 基金项目： | 国家自然科学基金 , 江苏省自然科学基金 |
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| 摘 要： | 为了研究激光重熔工艺对用喷射电沉积方法在45#钢基体表面制备的纳米结构镍涂层性能的影响,采用扫描电镜和X射线衍射仪对涂层表面形貌和晶粒尺寸进行了分析,并对涂层做了表面显微硬度测试和耐腐蚀性试验,对激光重熔工艺对涂层性能影响进行了理论分析和实验验证。结果表明,在优选的工艺参数下,喷射电沉积制备的镍涂层由平均尺寸为13.7nm的纳米晶颗粒组成;经过激光重熔后,熔融区内的晶粒尺寸明显减小,涂层与基体由机械结合变为冶金结合,涂层的表面显微硬度和耐腐蚀性能得到明显的提高。这一结果对于促进激光加工技术在纳米材料的应用具有一定的理论意义和实际价值。
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| 关 键 词： | 激光技术 激光重熔 喷射电沉积 纳米结构镍涂层 显微硬度 耐腐蚀性能 |
| 文章编号： | 1001-3806(2008)03-0231-03 |
| 收稿时间： | 2007-04-24 |
| 修稿时间： | 2007-04-24 |
Research on laser remelting of jet electrodeposited nanocrystalline nickel coatings |
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| WANG Dong-sheng,HUANG Yin-hui,TIAN Zong-jun,LIU Zhi-dong,ZHU Jun. Research on laser remelting of jet electrodeposited nanocrystalline nickel coatings[J]. Laser Technology, 2008, 32(3): 231-231 |
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| Authors: | WANG Dong-sheng HUANG Yin-hui TIAN Zong-jun LIU Zhi-dong ZHU Jun |
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| Affiliation: | WANG Dong-sheng1,2,HUANG Yin-hui1,TIAN Zong-jun1,LIU Zhi-dong1,ZHU Jun2(1.Jiansu Key Laboratory of Precision , Micro-manufacuring Technology,Nanjing Umiversity of Aeronautics , Astronautics,Nanjing 210016,China,2.College of Mechanical , Electrical Engineering,Nanjing University of Aeronautics , Astronautics,China) |
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| Abstract: | In order to study the effect of laser remelting on the property of the nanocrystalline nickel coating prepared by jet electrodepositing on the substrate of 45# carbon steel,the coatings' surface morphology and the size of crystal were analyzed with scanning electron microscope and X-ray diffractometry,the microhardness and corrosion resistance of coatings were also tested,and the effect of laser remelting were discussed in theory and experiment.The results showed that the average size of crystal of jet elec... |
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| Keywords: | laser technique laser remelting jet electrodepositing nanocrystalline nickel coating microhardness corrosion resistance |
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