| W6Mo5Cr4V2激光熔覆陶瓷涂层显微组织及性能分析 |
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| 引用本文： | 项东,许斌,刘科高. W6Mo5Cr4V2激光熔覆陶瓷涂层显微组织及性能分析[J]. 激光技术, 2003, 27(5): 434-436 |
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| 作者姓名： | 项东 许斌 刘科高 |
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| 作者单位： | 1.山东建筑工程学院材料科学与工程系, 济南, 250014 |
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| 摘 要： | 采用2kW的CO2激光束在W6Mo5Cr4V2高速钢表面熔覆陶瓷层材料,表面会形成三维网络状的陶瓷层,并经过淬火、回火热处理。研究结果表明,高速钢的高强度、高韧性结合高性能的陶瓷层,可形成一个良好的硬化层分布,其最高硬度可达1887HV,其耐磨性比常规淬、回火组织高约(3～7)倍。其高温硬度(红硬性)及回火稳定性均有所提高。
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| 关 键 词： | 激光熔覆 高速钢 陶瓷 显微组织 耐磨性 |
| 文章编号： | 1001-3806(2003)05-0434-03 |
| 收稿时间： | 2003-02-26 |
| 修稿时间： | 2003-02-26 |
Microstructures and properties of laser clad ceramic layers on W6Mo5Cr4V2 high speed steel surface |
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| Xiang Dong,Xu Bin,Liu Kegao. Microstructures and properties of laser clad ceramic layers on W6Mo5Cr4V2 high speed steel surface[J]. Laser Technology, 2003, 27(5): 434-436 |
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| Authors: | Xiang Dong Xu Bin Liu Kegao |
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| Abstract: | The ceramic layers were cladded on W6Mo5Cr4V2 high speed steel surface with a 2kW CO2 laser,and the net of three dimension ceramic layers are formed.The steel was quenched and tempered The test results indicate that the high strength and toughness of the steel combines with their properties of the ceramic layers forming a well distribution. The highesthardness of the layers can reach 1887HV,and the wear resistances are increased (3～7) times compared to those of the steel in common heat treatment. The high temperature hardness and temper stability are enhanced,too. |
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| Keywords: | laser cladding high speed steel ceramic microstructure wear resistance |
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