| 钛合金激光熔覆TiB-TiC增强TiNi-Ti2Ni金属间化合物复合涂层的组织和耐磨性（英文） |
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| 引用本文： | 冯淑容,汤海波,张述泉,王华明.钛合金激光熔覆TiB-TiC增强TiNi-Ti2Ni金属间化合物复合涂层的组织和耐磨性（英文）[J].中国有色金属学会会刊,2012,22(7):1667-1673. |
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| 作者姓名： | 冯淑容 汤海波 张述泉 王华明 |
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| 作者单位： | 北京航空航天大学材料科学与工程学院;北京航空航天大学大型整体金属构件激光直接制造教育部工程研究中心 |
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| 基金项目： | Project (2010CB731705) supported by the National Basic Research Program of China |
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| 摘 要： | 以Ti＋Ni＋B4C粉末混合物为原料,利用激光熔覆技术在TA15钛合金基材表面制得TiB-TiC共同增强TiNi-Ti2Ni金属间化合物复合涂层。采用OM、SEM、XRD、EDS及AFM等手段分析激光熔覆涂层的显微组织及磨损表面,测试涂层的室温干滑动磨损性能。结果表明,激光熔覆TiB-TiC增强TiNi-Ti2Ni金属间化合物复合涂层熔覆具有独特的显微组织,菊花状的TiB-TiC共晶均匀分布在TiNi-Ti2Ni双相金属间化合物基体中。由于高硬、高耐磨TiB-TiC陶瓷相与高韧性TiNi-Ti2Ni双相金属间化合物基体的共同配合,激光熔覆涂层表现出优异的耐磨性。
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| 关 键 词： | 金属间化合物复合材料涂层激光熔覆磨损 |
| 收稿时间： | 3 November 2011 |
Microstructure and wear resistance of laser clad TiB-TiC/TiNi-Ti2Ni intermetallic coating on titanium alloy |
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| FENG Shu-rong,TANG Hai-bo,ZH ANG Shu-quan,WANG Hua-ming.Microstructure and wear resistance of laser clad TiB-TiC/TiNi-Ti2Ni intermetallic coating on titanium alloy[J].Transactions of Nonferrous Metals Society of China,2012,22(7):1667-1673. |
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| Authors: | FENG Shu-rong TANG Hai-bo ZH ANG Shu-quan WANG Hua-ming |
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| Affiliation: | 1,2 1.School of Materials Science and Engineering,Beihang University,Beijing 100191,China;2.Engineering Research Center of Ministry of Education on Laser Direct Manufacturing for Large Metallic Components,Beihang University,Beijing 100191,China |
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| Abstract: | A wear resistant TiB-TiC reinforced TiNi-Ti2Ni intermetallic matrix composite coating(TiB-TiC/TiNi-Ti2Ni) was prepared on Ti-6.5Al-2Zr-1Mo-1V titanium alloy by the laser cladding process using Ti+Ni+B4C powder blends as the precursor materials.Microstructure and worn surface morphologies of the coating were characterized by optical microscopy(OM),scan electron microscopy(SEM),X-ray diffraction(XRD),energy dispersive X-ray analysis(EDS) and atomic force microscopy(AFM).Wear resistance of the coating was evaluated under dry sliding wear test condition at room temperature.The results indicate that the laser clad coating has a unique microstructure composed of flower-like TiB-TiC eutectic ceramics uniformly distributed in the TiNi-Ti2Ni dual-phase intermetallic matrix.The coating exhibits an excellent wear resistance because of combined action of hard TiB-TiC eutectic ceramic reinforcements and ductile TiNi-Ti2Ni dual-phase intermetallic matrix. |
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| Keywords: | intermetallic composite coating laser cladding wear |
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