| Al-TiO2-C系激光熔覆制备TiC/Fe复合涂层及其组织与性能 |
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| 引用本文： | 高立,周芳,何良华.Al-TiO2-C系激光熔覆制备TiC/Fe复合涂层及其组织与性能[J].表面技术,2011,40(6):7-9,49. |
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| 作者姓名： | 高立 周芳 何良华 |
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| 作者单位： | 贵州大学材料科学与冶金工程学院,贵阳,550003;贵州大学材料科学与冶金工程学院,贵阳,550003;贵州大学材料科学与冶金工程学院,贵阳,550003 |
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| 基金项目： | 贵阳市科技局工业类项目(筑科工合同字[2009]1-047号) |
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| 摘 要： | 采用激光熔覆技术,在Q235钢表面原位合成了TiC/Fe复合涂层,利用光学显微镜、XRD、SEM、EDS和显微硬度计对熔覆层的组织和性能进行了分析.结果表明:涂层组织致密,无裂纹和气孔,与基体之间呈良好的冶金结合；在激光束的加热作用下,A1-TiO2-C体系能在铁基熔池中反应并合成细小且弥散分布的TiC颗粒；熔覆层的平...
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| 关 键 词： | 激光熔覆 Q235钢 组织 A1-TiO2-C体系 |
Microstructure and Property of Laser Cladding TiC/Fe-based Composite Coating in Al-TiO2-C System |
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| GAO Li,ZHOU Fang,HE Liang-hua.Microstructure and Property of Laser Cladding TiC/Fe-based Composite Coating in Al-TiO2-C System[J].Surface Technology,2011,40(6):7-9,49. |
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| Authors: | GAO Li ZHOU Fang HE Liang-hua |
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| Affiliation: | (School of Material Science and Metallurgical Engineering,Guizhou University,Guiyang 550003,China) |
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| Abstract: | TiC/Fe-based composite coating was obtained on surface of Q235 steel by means of laser cladding technology.The microstructure and property of the coating were investigated by optical microscope,XRD,SEM,EDS and micro-hardness tester.The results show that the coatings have good performance such as compact structure,crack-free,pore-free and metallurgical bonding with the substrate;During the laser cladding processes,TiC particulates are synthesized by a in-situ reaction in a Al-TiO2-C system.The micro-hardness of the coating is averagely 720HV0.2. |
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| Keywords: | laser cladding Q235 steel microstructure Al-TiO2-C system |
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