10Ni5CrMoV钢旋转电弧窄间隙GMAW研究  

Study on rotation arc narrow gap gas metal arc welding of 10Ni5CrMoV steel

作　　者：余刚[1] 丁敏[1] 崔海超[1] 唐新华[1] 楼松年[1] 

机构地区：[1]上海交通大学上海市激光制造与材料改性重点试验室,上海200240

出　　处：《焊接技术》2010年第11期12-15,共4页Welding Technology

摘　　要：采用旋转电弧窄间隙GMAW焊接方法对40mm厚10Ni5CrMoV钢进行了焊接。对焊接接头形貌、接头组织、硬度、低温冲击韧性及抗拉强度分别进行了观察和测量。结果表明:焊缝成形较好,没有缺陷,焊缝组织由粒状贝氏体和铁素体组成,焊缝内硬度比较均匀,低温冲击韧性和抗拉强度均符合使用要求,成功实现了大厚板10Ni5CrMoV钢旋转电弧窄间隙焊接。The 40 mm thick plate of 10Ni5CrMoV was welded by using narrow gap gas arc welding method with suitable welding parameters.The appearance,microstructure,hardness,low-temperature impact toughness and tensile strength of the welded joints was observed and measured.The results showed that good appearance and no-defect joint was attained,the microstructure in weld metal was mainly grained bainite and ferrite,the hardness of the weld metal was uniform,and the low-temperature impact toughness and tensile strength met the requirements of application.The chosen welding method was effective.

关 键 词：10NI5CRMOV钢 窄间隙旋转电弧焊接 微观组织 力学性能 

分 类 号：TG457.1[金属学及工艺—焊接]