论文部分内容阅读
焊接材料母材 :Ｃｒ17焊接方法滚焊图 1 滚焊焊接接头整体形貌 10×图 2 图 1局部放大 5 0×图 3 接头中心区组织 40 0×铁素体 (白色 )加晶界马氏体及残余奥氏体(黑灰色 )加铁素体晶粒内部析出相图 4 母材过热区组织 40 0×铁素体加马氏体及残余奥氏体图 5 母材
Welding material Base material: Cr17 Welding method Figure 1 Rolling welded joint overall appearance 10 × Figure 2 Figure 1 partial enlargement 5 0 × Figure 3 joint central organization 40 × ferrite (white) plus grain boundary Markov Body and residual austenite (black-gray) plus ferrite grains precipitated inside the phase diagram 4 overheat zone of the base material 40 0 × ferrite plus martensite and retained austenite Figure 5 base metal