激光立体成形GH4169合金再结晶过程中的界面和晶体取向演化*

刘奋成, 林鑫, 余小斌, 黄春平, 黄卫东

EVOLUTION OF INTERFACE AND CRYSTAL ORIENTATION OF LASER SOLID FORMED GH4169 SUPERALLOY DURING RECRYSTALLIZATION

LIU Fencheng, LIN Xin, YU Xiaobin, HUANG Chunping, HUANG Weidong

表1 GH4169合金粉末及LSF件的化学成分

Material Cr Fe Ti Al Mo Nb C Ni Powder 19.7 18.4 1.0 0.6 3.0 5.2 0.03 Bal. LSF sample 19.6 18.2 1.1 0.5 3.3 5.6 0.05 Bal. AMS: 5663 17～21 16～20 0.65～1.15 0.2～0.8 2.8～3.3 4.75～5.5 0.08 (Max.) Bal.