激光增材制造高温合金材料与工艺研究进展
孙晓峰, 宋巍, 梁静静, 李金国, 周亦胄

Research and Development in Materials and Processes of Superalloy Fabricated by Laser Additive Manufacturing
SUN Xiaofeng, SONG Wei, LIANG Jingjing, LI Jinguo, ZHOU Yizhou
图7 典型的增材制造高温合金组织缺陷[34,55]
(a) solidification crack[34]
(b) eutectic and liquefaction crack[34]
(c) solid-state crack[34]
(d) voids[55]
Fig.7 Typical additive manufacturing superalloy structure defects