硼对氩弧熔敷Fe-V-C合金系组织与性能影响
Effect of Boron Element on Microstructure and Properties of TIG Cladding Fe-V-C Alloy System
杨凤琦, 罗 辉, 黄柏颖, 张元彬
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作者单位：山东建筑大学 材料科学与工程学院, 山东 济南 250101)
中文关键字：氩弧堆焊； 合金粉末； 熔覆层
英文关键字：argon arc welding; alloy powder; cladding layer
中文摘要：利用氩弧堆焊技术，在Q235材料表面熔敷Fe-V-C合金系，研究了硼铁对熔敷Fe-V-C合金系硬质点相形态变化的影响。结果表明，硼元素可以提高Fe-V-C合金系熔敷层的表面硬度。当添加硼铁质量分数小于10%时，熔敷层可获得晶粒细小的硬质点相，熔敷层表面硬度可达60.1 HRC；当硼铁质量分数大于25%时，熔敷层硬质相转为针状，熔敷层表面硬度随硼铁含量的增加而减少。
英文摘要：Fe-V-C alloy system was deposited on the surface of Q235 materials with the argon arc welding technology, and the effects of B-Fe on the hard particle-phase microstructure of deposited Fe-V-C alloy system was investigated. The results show that the surface hardness of cladding layer of the Fe-V-C alloy system can be improved by adding B element. The fine grain hard particle-phase is obtained in cladding layer, when the mass of B-Fe is less than 10%, the surface hardness of cladding layer is up to 60.1 HRC. But when the mass of B-Fe is more than 25%, the microstructure of particle-phase in cladding layer changes into needle-shaped, and the surface hardness of cladding layer decreases with the increase of the mass of B-Fe.