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5 固溶热处理后叶身横截面上的残余共晶分布及局部放大图

Fig.5 Transverse section microstructure of a blade aerofoil after solution heat treatment (a) and local enlarged image showing the distribution of residual eutectics (b)