高温合金单晶铸件中共晶组织分布的表面效应

马德新, 赵运兴, 徐维台, 皮立波, 李重行

Surface Effect on Eutectic Structure Distribution in Single Crystal Superalloy Castings

MA Dexin, ZHAO Yunxing, XU Weitai, PI Libo, LI Zhongxing

图3 单晶叶片缘板的纵截面及上、下表面的横截面显微组织的OM像

Fig.3 OM images of longitudinal section microstructures of a blade platform (a) and transverse section near the upper (b) and bottom (c) surfaces