| 入射角度对激光熔凝层组织及性能的影响 |
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| 引用本文： | 李刚,邱星武,邱玲,陈华.入射角度对激光熔凝层组织及性能的影响[J].机械工程材料,2009(8). |
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| 作者姓名： | 李刚 邱星武 邱玲 陈华 |
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| 作者单位： | 辽宁工程技术大学材料科学与工程学院; |
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| 摘 要： | 采用HL-1500型CO2激光加工机,以不同入射角度对40Cr钢进行激光熔凝处理,利用扫描电镜、X射线衍射仪、显微硬度计、恒电位仪及磨粒磨损试验机等对熔凝层进行显微组织观察和性能测试。结果表明:熔凝层分为表层、中间层及过渡层;随着入射角度的增大,熔凝层的组织变得粗大,显微硬度逐渐下降,耐磨性呈降低趋势;熔凝层的耐蚀性比基体有所提高。
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| 关 键 词： | 激光熔凝处理 入射角度 显微组织 性能 |
Effect of Incident Angle on Laser Melted Layer Microstructure and Properties |
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| LI Gang,QIU Xing-wu,QIU Ling,CHEN Hua.Effect of Incident Angle on Laser Melted Layer Microstructure and Properties[J].Materials For Mechanical Engineering,2009(8). |
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| Authors: | LI Gang QIU Xing-wu QIU Ling CHEN Hua |
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| Affiliation: | LI Gang,QIU Xing-wu,QIU Ling,CHEN Hua(School of Materials Science and Engineering,Liaoning Technical University,Fuxin 123000,China) |
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| Abstract: | Laser melting treatment with different incident angles was carried out by using HL-1500 CO2 laser processing machine on 40Cr steel.The microstructure and properties were analyzed by means of scanning electron microscopy,X-ray diffraction,microhardness meter,potentiostat and abrasive-wear tester.The results indicate that the melted layer was composed of surface,middle layer and transition layer.As the incident angle increasing,the melted layer microstructure became coarser.With increasing the laser incident ... |
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| Keywords: | laser melting treatment incident angle microstructure property |
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