| 激光熔覆Ni-Si基复合涂层组织与性能 |
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| 引用本文： | 樊丁,孙明,孙耀宁,张建斌,夏正文. 激光熔覆Ni-Si基复合涂层组织与性能[J]. 兰州理工大学学报, 2007, 33(3): 16-18 |
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| 作者姓名： | 樊丁 孙明 孙耀宁 张建斌 夏正文 |
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| 作者单位： | 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050;浙江久立不锈钢管股份有限公司,技术研发中心,浙江,湖州,313012 |
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| 基金项目： | 甘肃省科技攻关项目(2GS057-A52-001-03) |
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| 摘 要： | 利用激光熔覆技术在Ni基高温合金表面制备(Ti,W)C陶瓷增强Ni-Si金属间化合物基复合涂层.通过SEM、XRD、EDS等方法研究涂层相及组织,并测量其显微硬度.结果表明,熔覆层与基体呈冶金结合,结合质量良好;熔覆层主要由Ni固溶体、Ni3(Si,Ti)金属间化合物和(Ti,W)C复相陶瓷组成;熔覆层组织均匀,硬度较高.
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| 关 键 词： | 激光熔覆 金属间化合物 (Ti W)C |
| 文章编号： | 1673-5196（2007）03-0016-03 |
| 修稿时间： | 2006-09-25 |
Microstructures and properties of composite coatings with laser-melt-clad Ni-Si matrix |
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| FAN Ding,SUN Ming,SUN Yao-ning,ZHANG Jian-bin,XIA Zheng-wen. Microstructures and properties of composite coatings with laser-melt-clad Ni-Si matrix[J]. Journal of Lanzhou University of Technology, 2007, 33(3): 16-18 |
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| Authors: | FAN Ding SUN Ming SUN Yao-ning ZHANG Jian-bin XIA Zheng-wen |
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| Abstract: | (Ti,W)C multi-ceramics reinforced Ni-Si matrix intermetallic composite coatings were fabricated on the nickel-matrix superalloy substrate by using laser cladding technique.By means of SEM,XRD and EDS,microstructures of the coatings were investigated,and their micro-hardness was measured.The results showed that an excellent metallurgical bonding between the coatings and the substrates was obtained.Main phases of the coatings were gamma-Ni solid solution,Ni3(Si,Ti) intermetallic compound,and(Ti,W)C multi-ceramics.Microstructures of the melt-clad layers were uniform,and their micro-hardness was higher than that of the substrate. |
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| Keywords: | laser cladding intermetallic compound (Ti W)C |
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