选区激光熔化René 88DT高温合金的晶粒组织及冶金缺陷调控
刘健1,2, 彭钦1,2, 谢建新1,2()
Grain Structure and Metallurgical Defects Regulation of Selective Laser Melted René 88DT Superalloy
LIU Jian1,2, PENG Qin1,2, XIE Jianxin1,2()

图8. 选区激光熔化René 88DT镍基高温合金试样中的未熔化粉末形貌

Fig.8. Morphology of unmelted powders in selective laser melted René 88DT specimen