核级镍基合金焊接材料失塑裂纹研究现状

余春, 徐济进, 魏啸, 陆皓

Research Status of Ductility-Dip Crack Occurring in Nuclear Nickel-Based Welding Materials

YU Chun, XU Jijin, WEI Xiao, LU Hao

图1 材料的高温塑性变化示意图[28]

Fig.1 Sketch map of ductility curves with temperature[28] (Solid line presents the common materials, while the dotted line reflects the austenite materials; DTR—ductility-dip temperature region, BTR—brittle temperature region)