调质处理对G520钢焊接接头组织及性能的影响

张敏,贾芳,程康康,李洁,许帅,仝雄伟

Influence of Quenching and Tempering on Microstructure and Properties of Welded Joints of G520 Martensitic Steel

Min ZHANG,Fang JIA,Kangkang CHENG,Jie LI,Shuai XU,Xiongwei TONG

表2 G520钢板焊接工艺参数

Table 2 Welding parameters of G520 steel plate

Welding layer d / mm I / A U / V v / (mm·s-1) Obverse side 1~2 3.2 120~135 25~35 2.3~3.0 Reverse side 1~2 3.2 120~135 25~35 2.5~3.3 Reverse side 3 4.0 155~167 25~30 3.3~3.8 Obverse side 3~4 4.0 155~167 25~30 3.3~5.0 Obverse side 5 4.0 155~167 25~30 2.8~3.3 Reverse side 4~5 4.0 155~167 25~30 3.3~4.3