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    陈惠芬, 胡静霞, 刘克家, 袁晓敏, 高甲生. 镍合金激光熔覆层的组织结构分析[J]. 机械工程材料, 2006, 30(5): 33-35.
    引用本文: 陈惠芬, 胡静霞, 刘克家, 袁晓敏, 高甲生. 镍合金激光熔覆层的组织结构分析[J]. 机械工程材料, 2006, 30(5): 33-35.
    shu
    CHEN Hui-fen, HU Jing-xia, LIU Ke-jia, YUAN Xiao-min, GAO Jia-sheng. Structure of Laser Cladded Ni-based Alloy Coating[J]. Materials and Mechanical Engineering, 2006, 30(5): 33-35.
    Citation: CHEN Hui-fen, HU Jing-xia, LIU Ke-jia, YUAN Xiao-min, GAO Jia-sheng. Structure of Laser Cladded Ni-based Alloy Coating[J]. Materials and Mechanical Engineering, 2006, 30(5): 33-35.
    shu

    镍合金激光熔覆层的组织结构分析

    Structure of Laser Cladded Ni-based Alloy Coating

      摘要
    • 摘要: 研究了镍-铬-硼-硅合金激光熔覆涂层的组织与相结构;测试了熔覆层的显微硬度,分析了激光熔覆层中的择尤取向问题,探讨了激光功率、熔覆道次对组织的影响.结果表明：激光熔覆层显微硬度值为400~500 HV;熔覆层组织由枝状晶与等轴晶组成,其主要相结构是γ-Ni;不同激光功率下熔覆层存在不同程度的择尤取向,单层多道激光熔覆使择尤取向有所减弱.

       

      Abstract: Ni-based coating was prepared by irradiating the mixture powders of Ni-Cr-B-Si on 16Mn mild steel.The microstructure and hardness of the coating were examined.The effect of laser power on the microstructure and property of the Ni-based coating were investigated.The Ni-based alloy layer could be divided into dendrite and equiaxial crystal.The hardness was 400-500 HV.The γ-Ni structure and preferential orientation were observed in the laser cladding.

       

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