【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。更多还原

【Abstract】 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.更多还原