| Cr12模具钢合金激光熔覆层的组织和性能研究 |
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| 引用本文： | 黄尚猛. Cr12模具钢合金激光熔覆层的组织和性能研究[J]. 材料热处理学报, 2009, 30(1): 161-165 |
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| 作者姓名： | 黄尚猛 |
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| 作者单位： | 广西机电职业技术学院,广西,南宁,530007 |
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| 摘 要： | 在Cr12模具钢材料表面上,分别进行了PHNi-60A、PHNi25WC-60A和Stellite6三种合金粉末的激光熔覆实验,并对实验结果进行分析。结果表明:Cr12模具钢表面上可实现镍基合金和钴基合金的激光熔覆,可获得较好的冶金界面结合;激光熔覆后表面的耐磨损性能比熔覆前的基体耐磨损性能有较大的提高;表面硬度在不同程度上都得到提高,硬度峰值出现在次表层,其最大值为1049HV0.2;微观结构是由平面晶和枝晶构成的共晶组织,并有多种合金相分布在枝晶间。
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| 关 键 词： | 激光熔覆 Cr12模具钢 磨损性能 显微硬度 显微组织 |
Study on microstructure and properties of alloy layer prepared by laser cladding on surface of Cr12 die steel |
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| HUANG Shang-meng. Study on microstructure and properties of alloy layer prepared by laser cladding on surface of Cr12 die steel[J]. Transactions of Materials and Heat Treatment, 2009, 30(1): 161-165 |
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| Authors: | HUANG Shang-meng |
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| Affiliation: | Guangxi Technological College of Machinery and Electricity;Nanning 530007;China |
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| Abstract: | The cladding layer on surface of Cr12 die steel was prepared by laser cladding using PHNi-60A,PHNi25WC-60A and Stellite6 alloy powders as cladding materials,respectively.Microstructure and properties of the cladding layers were examined by means of hardness test,wear test,SEM and XRD.The results show that metallurgy binding interface between the nickel-base alloy,cobalt-base alloy and Cr12 steel is obtained.Wear-resistance and hardness of the clad Cr12 steel are obviously improved.The maximum hardness is 10... |
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| Keywords: | laser cladding Cr12 die steel wear-resistance microhardness microstructure |
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