镍基合金材料具有热裂纹敏感性高,液态金属流动性差,焊缝熔深浅,易氧化等焊接特点,通过选取合适焊材、采用工装堆焊出符合要求的试板、制定工艺避免热裂纹产生等措施,保证了镍基合金与不锈钢的焊接质量,顺利完成镍基合金与不锈钢工艺评定,焊缝未出现裂纹、未熔合、未焊透及夹渣等缺陷,焊接质量满足工艺评定要求,为类似镍基合金的焊接工艺评定实施提供借鉴与参考。 Nickel-based alloy has the characteristics of high thermal crack sensitivity, poor fluidity of liquid metal, shallow weld penetration, easy oxidation and other welding characteristics. By selecting suitable welding consumables and welding out the test plates that meet the requirements, the process is to avoid the occurrence of hot cracks And other measures to ensure the quality of nickel-based alloy and stainless steel welding, the successful completion of the nickel-based alloy and stainless steel process assessment, the weld does not appear cracked, unfused, incomplete penetration and slag and other defects, welding quality to meet the requirements of process assessment, Similar to the nickel-based alloy welding process evaluation to provide reference and reference.