| 元素添加量对水等离子弧堆焊铁基合金层的影响 |
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| 引用本文： | 李达,孙兵,刘伟,李森. 元素添加量对水等离子弧堆焊铁基合金层的影响[J]. 表面技术, 2013, 42(5): 48-51 |
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| 作者姓名： | 李达 孙兵 刘伟 李森 |
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| 作者单位： | 西南交通大学 材料科学与工程学院,成都 610031;西南交通大学 材料科学与工程学院,成都 610031;石家庄市高级技工学校 焊工组,石家庄 050049;西南交通大学 材料科学与工程学院,成都 610031 |
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| 基金项目： | 西南交通大学青年教师百人计划( SWJTU11BR052) |
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| 摘 要： | 采用正交试验方法设计了几种铁基合金系堆焊粉末,利用水等离子火焰机在Q345钢板上进行堆焊,分析了Cr,Mo,Si,C添加量对堆焊层硬度、显微组织及磨损性能的影响。结果表明:堆焊层中含有大量的M7C3初生碳化物及共晶组织,最高硬度可达到56.8HRC,耐磨性较好,Cr和C对堆焊金属的耐磨性影响最大。试验表明,采用水等离子火焰机可以较好地进行粉末堆焊。
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| 关 键 词： | 水等离子粉末堆焊 铁基合金 显微组织 耐磨性 |
| 收稿时间： | 2013-04-20 |
| 修稿时间： | 2013-05-18 |
Effects of Elements Additions on the Fe-based Alloy Layer by Using Water Fuel Plasma Arc Welding Method |
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| LI D,SUN Bing,LIU Wei and LI Sen. Effects of Elements Additions on the Fe-based Alloy Layer by Using Water Fuel Plasma Arc Welding Method[J]. Surface Technology, 2013, 42(5): 48-51 |
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| Authors: | LI D SUN Bing LIU Wei LI Sen |
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| Affiliation: | College of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031 , China;College of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031 , China;Welder Group, Shijiazhuang Senior Technical Schools, Shijiazhuang 050049 , China;College of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031 , China |
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| Abstract: | Several Fe-based alloy powders were designed by using orthogonal design method, water fuel plasma arc equipment was adopted to hardfacing Q345 steel . The effects of Cr, Mo, Si, C additions on hardness, microstructure and wear properties of the hardfacing metal were investigated. The results show that the microstructure of the hardfacing metal is composed of a large amount of M7C3 carbides and eutectic structure. The highest hardness of the hardfacing metal is HRC56 . 8 , which has good wear property. The experiments indicate that it is feasible to investigate on the power surfacing by using water fuel plasma arc equipment . |
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| Keywords: | powder surfacing by using water fuel plasma arc Fe-based alloy microstructure wear property |
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