激光增材修复单晶高温合金的热裂纹形成机制
卢楠楠, 郭以沫, 杨树林, 梁静静, 周亦胄, 孙晓峰, 李金国

Formation Mechanisms of Hot Cracks in Laser Additive Repairing Single Crystal Superalloys
LU Nannan, GUO Yimo, YANG Shulin, LIANG Jingjing, ZHOU Yizhou, SUN Xiaofeng, LI Jinguo
图10 DD432单晶高温合金凝并温度与固相分数之间的关系
Fig.10 Relationships between the solidification temperature and the solid fraction (fs) for DD432 SX superalloys (ΔTDD432—interdendritic liquid film undercooling in DD432 alloy)