D212焊条堆焊工艺对堆焊层组织性能的影响
Effect of Welding Process on Microstructure and Properties of Surfacing Layer with D212 Welding Electrode
罗 辉, 张元彬, 唐琳琳
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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：堆焊工艺；显微组织；焊接线能量
英文关键字：surfacing welding technology； microstructure； welding line energy
中文摘要：分析了D212焊条在Q235B材料表面堆焊时堆焊工艺对其堆焊层组织性能的影响。结果表明，随着焊接线能量增加，堆焊层的稀释率加大，堆焊两层后母材的稀释作用明显降低；堆焊后去应力退火处理不会改变堆焊层组织和性能，而完全退火处理后堆焊层组织为铁素体和珠光体，堆焊层硬度显著降低。
英文摘要：The effect of surfacing welding technology on microstructure and performance on welding surface of Q235B with the D212 electrode was analyzed. The experimental results show that the dilution rate of cladding layer increases with the increase of welding line energy, materials significantly reduce the dilution effect after surfacing welding of two layers. It can not change the microstructure and performance of surfacing layer after the stress annealing. The microstructures become ferrite and pearlite, the hardness is lower by fully annealed.