Q345B低合金钢板电子束焊接焊缝熔深与组织研究  

Study on Weld Penetration and Microstructure of Q345B Low Alloy Steel Plate by Electron Beam Welding

作　　者：孙京波 史成斌 朱建业 Sun Jingbo;Shi Chengbin;Zhu Jianye(Shandong Iron and Steel Group Rizhao Co.,Ltd.)

机构地区：[1]山东钢铁集团日照有限公司

出　　处：《宽厚板》2022年第4期25-27,共3页Wide and Heavy Plate

摘　　要：采用不同焊接束流电子束焊接工艺,直接对Q345B低合金钢板侧面进行电子束击打。解剖、测量腐蚀后焊缝,得出不同焊接工艺下的熔深,并通过金相显微镜及扫描电镜观察焊缝组织,从而确定能够实现Q345B低合金钢板最佳焊缝熔深与组织匹配的电子束焊接工艺。With electron beam processes of different welding beam current,the side of Q345 B low alloy steel plate is directly struck by electron beam.The welds are dissected and measured after corrosion,the penetration depths under different welding processes are obtained.and the microstructure of the weld is observed by metallographic microscope and scanning electron microscope,the electron beam welding process which can achieve optimum weld penetration depth and microstructure matching is determined.

关 键 词：电子束焊接 组织 熔深 

分 类 号：TG457.11[金属学及工艺—焊接]