| 摘要: |
| 在低碳钢表面进行Fe5合金等离子弧堆焊时外加纵向磁场,对堆焊试样进行磨损和硬度试验,采用显微电镜和扫描电镜对堆焊层显微组织进行分析,研究磁场频率对堆焊层金属的硬度和耐磨性的影响规律。结果表明,外加纵向磁场通过电磁搅拌作用细化堆焊层金属的组织,并控制硬质相的形态及分布;堆焊层的硬度和耐磨性随磁场的频率变化而变化并存在最佳值,在适当的磁场频率作用下电磁搅拌达到最佳效果从而提高堆焊层金属的综合力学性能。 |
| 关键词: 等离子弧堆焊 纵向磁场 电磁搅拌 磁场频率 |
| DOI： |
| 分类号: |
| 基金项目:辽宁省自然科学基金资助项目(20042025) |
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| Effect of magnetic field frequency on properties of Fe5 surfacing metal |
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LIU Zhengjun1, SU Yunhai1, LU Hailong2
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1.School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110023;2.School of Jilin industry profession technique, Jilin, 132013
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| Abstract: |
| The Fe5 alloy was overlaid on low carbon steel by plasma arc with longitudinal magnetic field.The scanning electron microscope, wear loss test, micro-hardness test were used to analyze the effect of magnetic field frequency on properties of surfacing metal. The results indicate that electromagnetic stirring can improve the shape and distribution of hard phase and refine the primary crystallization structure.The hardness and wear resistantance vary with magnetic field frequency.The properties of surfacing metal are improved when the magnetic field frequency in an optimal value. |
| Key words: plasma arc surfacing longitudinal magnetic field electromagnetic stirring magnetic frequency |
