| 反应等离子熔覆原位合成TiC增强涂层 |
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| 引用本文： | 王立梅.反应等离子熔覆原位合成TiC增强涂层[J].实验室研究与探索,2011,30(11). |
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| 作者姓名： | 王立梅 |
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| 作者单位： | 潍坊学院信控系,山东潍坊,261061 |
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| 基金项目： | 国家自然科学基金青年基金项目(51004077); 山东省科技攻关项目(2007GG30003003) |
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| 摘 要： | TiC增强涂层以钛铁粉、铁粉、铬粉和碳的前驱体(蔗糖)等为原料,通过前驱体碳化复合技术制备了Fe-Cr-Ti-C等离子熔覆复合粉末,并通过等离子熔覆技术在Q235钢表面成功原位合成.采用SEM、XRD和EDS对涂层的相组成和显微组织结构进行了分析,并在室温干滑动磨损条件下测试了该涂层的耐磨性能.结果表明,等离子熔覆涂层由原位合成的TiC相和(Cr,Fe)7C3共晶相与奥氏体相构成,与基材完全冶金结合.涂层中碳化物TiC呈现梯度分布,并且涂层的熔合区和中部区域TiC颗粒形状大多呈现粒状,涂层的表层区域部分TiC颗粒呈现树枝状.涂层的硬度从表面到熔合区相差不大,平均显微硬度约是HV02750,是基体金属的3.2倍.涂层磨损质量约是基体金属的1/12,具有良好的耐磨性能.
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| 关 键 词： | 等离子熔覆 (Cr Fc)7C3 TiC 涂层 前驱体 原位合成 |
TiC Particle Reinforced Reactive Plasma Clad Composite Coating |
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| WANG Li-mei.TiC Particle Reinforced Reactive Plasma Clad Composite Coating[J].Laboratory Research and Exploration,2011,30(11). |
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| Authors: | WANG Li-mei |
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| Institution: | WANG Li-mei(School of Information and Control Engineering,Weifang University,Weifang 261061,China) |
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| Abstract: | Fe-Cr-Ti-C composite powder was prepared by precursor carbonization-composition process using the mixture of ferrotitanium,chromium,iron powders and precursor sucrose as raw materials.In situ synthesized TiC particle reinforced composite coating was fabricated on substrate of Q235 steel by reactive plasma cladding process using Fe-Cr-Ti-C composite powder.Microstructure of the coating was observed by scanning electron microscope(SEM),the phases in the coating were determined by X-ray diffraction(XRD),and th... |
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| Keywords: | plasma clad TiC coating precursor in situ synthesis |
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