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6 试棒侧表面区域横截面的铸态组织与固溶态组织的OM像

Fig.6 OM images of transverse section near the sample surface showing the microstructures before (a) and after (b) solution heat treatment