| 激光表面原位合成TiB2/Cu复合涂层的性能 |
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| 引用本文： | 郭晓琴,李晓玲,张颂阳. 激光表面原位合成TiB2/Cu复合涂层的性能[J]. 铸造技术, 2011, 32(7) |
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| 作者姓名： | 郭晓琴 李晓玲 张颂阳 |
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| 作者单位： | 郑州航空工业管理学院,河南郑州,450015 |
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| 摘 要： | 应用500 W Nd:YAG固体激光器在纯铜表面原位合成TiB2/Cu复合涂层,测定了熔覆层的显微硬度和导电性,研究了熔覆层的磨损行为和抗电弧烧蚀性能.结果表明,含熔覆层试样的显微硬度由外到里存在明显的梯度变化,其中熔覆层的硬度最高,约为450～490 HV；熔覆层的平均体积导电率约为82.7% IACS,原位合成的细小TiB2相对Cu基体的电导率影响不大；含熔覆层试样的磨损性能明显优于纯铜试祥,其主要磨损机制为磨粒磨损;熔覆层内激光原位合成的TiB2颗粒能明显改善Cu基体抗电弧烧蚀的性能.
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| 关 键 词： | 激光熔覆 TiB2/Cu复合材料 性能 |
Properties of Insitu TiB2/Cu Composite Coating by Laser Cladding |
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| GUO Xiao-qin,LI Xiao-ling,ZHANG Song-yang. Properties of Insitu TiB2/Cu Composite Coating by Laser Cladding[J]. Foundry Technology, 2011, 32(7) |
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| Authors: | GUO Xiao-qin LI Xiao-ling ZHANG Song-yang |
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| Affiliation: | GUO Xiao-qin,LI Xiao-ling,ZHANG Song-yang(Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou 450015,China) |
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| Abstract: | An in situ TiB2/Cu composite coating was successfully laser-claded on the surface of pure copper substrate using a 500 W Nd: YAG solid laser.The micro hardness of the sample containing an in situ TiB2/Cu composite coating was measured along the direction from the coating to Cu substrate.The electric conductivity,the wear performance and the arc erosion resistance of in situ TiB2/Cu composite coating were also tested.The results show that the micro hardness of the sample containing an in situ TiB2/Cu composi... |
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| Keywords: | Laser cladding TiB2/Cu composite Properties |
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