| 氩弧熔敷原位合成TiC-TiB2/Ti基复合涂层组织及性能分析 |
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| 引用本文： | 孟君晟,吉泽升.氩弧熔敷原位合成TiC-TiB2/Ti基复合涂层组织及性能分析[J].焊接学报,2013(9):67-70. |
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| 作者姓名： | 孟君晟 吉泽升 |
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| 作者单位： | 哈尔滨理工大学材料科学与工程学院, 哈尔滨 150040;黑龙江科技大学材料科学与工程学院, 哈尔滨 150022,哈尔滨理工大学材料科学与工程学院, 哈尔滨 150040 |
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| 基金项目： | 黑龙江省科技厅项目(12511469);黑龙江省教育厅基金资助项目(11551419) |
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| 摘 要： | 利用氩弧熔敷技术,在TC4合金表面原位合成了TiC-TiB2增强镍基复合材料涂层,利用SEM和XRD等方法分析了涂层的显微组织并测试了涂层的显微硬度.结果表明,熔敷组织主要由TiC,TiB2和Ti(Ni,Cr)组成,TiB2主要以棒状形式存在;在所形成的TiC-TiB2/Ti复合材料层中,TiC和TiB2颗粒分布均匀且尺寸细小;熔敷涂层由表及里组织不同;熔敷层与基体呈冶金结合,无气孔、裂纹等缺陷;涂层的显微硬度达到13.8 GPa,较基体提高了4.5倍.
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| 关 键 词： | 氩弧熔敷 原位合成 TiC TiB2 显微组织 |
| 收稿时间： | 2012/4/17 0:00:00 |
Microstructure and properties of in-situ TiC-TiB2/Ti composite coating by argon arc cladding |
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| MENG Junsheng and JI Zesheng.Microstructure and properties of in-situ TiC-TiB2/Ti composite coating by argon arc cladding[J].Transactions of The China Welding Institution,2013(9):67-70. |
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| Authors: | MENG Junsheng and JI Zesheng |
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| Affiliation: | School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China;School of Materials Science & Engineering, Heilongjiang University of Science and Technology, Harbin 150027, China and School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China |
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| Abstract: | TiC-TiB2 p/Ti composite was in-situ synthesized on the TC4 alloy surface by using argon arc cladding.The microstructure of the coating was investigated by scanning electron microscope (SEM) and X-ray diffraction (XRD),and the microhardness of the coating was measured.The results show that the main phases in the coating were TiC,TiB2 and Ti(Ni, Cr),with TiB2 phases in rod-like form.Excellent bonding between the coating and TC4 substrate occurred without pores or cracking,and fine TiC and TiB2 particles uniformly distributed in the coating.The microstructure was different from the outside to the inside in the clad coating.The microhardness of coating was 13818MPa,improved about 4.5 times than the TC4 alloy substrate. |
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| Keywords: | argon arc cladding in-situ synthesis TiC TiB2 microstructure |
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