重力对高温合金定向凝固组织的影响

马德新, 赵运兴, 徐维台, 王富

Effect of Gravity on Directionally Solidified Structure of Superalloys

MA Dexin, ZHAO Yunxing, XU Weitai, WANG Fu

图12 采用下抽拉法和上提拉法以CM247为籽晶制备CMSX-4单晶试棒的回熔区附近纵截面组织的OM像

Fig.12 Longitudinal section OM images near the remelting zone showing the structure transition from CM247 seed to CMSX-4 prepared by pull-down (a) and pull-up (b) methods