| 纳米稀土对热喷涂WC-12Co涂层的改性作用 |
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| 引用本文： | 周红霞,王亮,彭飞,王铀.纳米稀土对热喷涂WC-12Co涂层的改性作用[J].材料热处理学报,2009,30(2). |
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| 作者姓名： | 周红霞 王亮 彭飞 王铀 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金资助(59895150) |
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| 摘 要： | 利用超音速火焰喷涂技术在45钢基体上制备了不同纳米稀土含量的WC-12Co涂层。通过物相分析并测定材料的显微硬度、结合强度、磨损性能,研究纳米稀土对WC-12Co涂层的改性作用。结果表明:适量纳米稀土的加入使WC-12Co涂层的显微硬度和结合强度显著提高,并且纳米稀土的加入有效地抑制了WC颗粒的脱碳,使组织细化。当纳米稀土含量在1.5wt%时,涂层的耐磨性最好。
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| 关 键 词： | 超音速喷涂 WC-12Co涂层 纳米稀土改性 耐磨性 |
Effect of rare earth on WC-12Co coatings prepared by thermal spraying |
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| ZHOU Hong-xia,WANG Liang,PENG Fei,WANG You.Effect of rare earth on WC-12Co coatings prepared by thermal spraying[J].Transactions of Materials and Heat Treatment,2009,30(2). |
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| Authors: | ZHOU Hong-xia WANG Liang PENG Fei WANG You |
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| Affiliation: | School of Materials Science and Engineering;Harbin Institute of Technology;Harbin 150001;China |
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| Abstract: | WC-12Co coatings with different content of nano-sized rare earth were prepared by high velocity oxy-fuel thermal spray(HVOF) on 45 steel substrate.In order to study the effect of nano-sized rare earth on WC-12Co coating,microhardness,bonding strength and wear resistance of the coatings were tested,and XRD analysis was carried out.The results show that appropriate nano-sized rare earth can greatly improve the coating hardness and bonding strength,and it can also restrain decarburization of WC particles,make ... |
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| Keywords: | HVOF WC-12Co coating nano-sized rare-earth modification wear resistance |
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