| 机械搅拌对纳米复合镀层微观组织及性能的影响(英文) |
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| 引用本文： | 王军丽,徐瑞东.机械搅拌对纳米复合镀层微观组织及性能的影响(英文)[J].稀有金属材料与工程,2009,38(Z1). |
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| 作者姓名： | 王军丽 徐瑞东 |
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| 作者单位： | 昆明理工大学,云南,昆明,650093 |
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| 基金项目： | 国家自然科学基金，Applied Basic Research Plans Program of Yunnan Province，Scientific Research Fund of Yunnan Provincial Education Department，and Analysis and Measurement Research Fund of Kunming University of Science and Technology |
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| 摘 要： | 通过Ni、W、P和CeO2、SiO2纳米颗粒的脉冲共沉积,在普通碳钢表面制各了Ni-W-P-CeO2-SiO2纳米复合镀层,研究了机械搅拌速度对纳米复合镀层微观组织及性能的影响,采用化学组成、元素分布、沉积速率、显微硬度和微观组织进行表征.结果表明:当机械搅拌速度控制在1000 r/min时,纳米复合材料微观组织致密,基质金属轮廓清晰,晶粒较细,纳米颗粒以弥散态均匀分布在基质金属中.同时,元素线扫描和面扫描分析表明,W、P、Si和Ce的平均含量非常接近,说明元素在纳米复合镀层中的分布是均匀的.提高机械搅拌速度,纳米复合镀层晶粒得到细化,沉积速率和显微硬度增加,当机械搅拌速度提高到1000 r/min时,沉积速率(32.68μm/h)和显微硬度(6820 MPa)最高.继续提高机械搅拌速度,纳米复合镀层晶粒尺寸反而增加,沉积速率和显微硬度降低.
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| 关 键 词： | 纳米复合镀层 机械搅拌 显微硬度 微观组织 |
Effects of Mechanical Stirring on Microstructures and Properties of Nan o-composite Coatings |
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| Wang Junli,Xu Ruidong.Effects of Mechanical Stirring on Microstructures and Properties of Nan o-composite Coatings[J].Rare Metal Materials and Engineering,2009,38(Z1). |
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| Authors: | Wang Junli Xu Ruidong |
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| Affiliation: | Wang Junli,Xu Ruidong (Kunming University of Science , Technology,Kunming 650093,China) |
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| Abstract: | Ni-W-P-CeO2-SiO2 nano-composite coatings were prepared on the carbon steel surface by pulse co-deposition of Ni,W,P,nano-CeO2 and nano-SiO2 particles. The effects of mechanical stirring velocity on microstructures and properties of the nano-composite coatings were researched; the characteristics were assessed by chemical compositions,element distribution,deposition rate,microhardness and microstructure. The results indicate that when the mechanical stirring velocity is controlled at 1000 r/min,the nano-comp... |
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| Keywords: | nano-composite coatings mechanical stirring microhardness microstructure |
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