高温合金叶片单晶凝固技术的新发展
马德新1,2(
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DEVELOPMENT OF SINGLE CRYSTAL SOLIDIFICA- TION TECHNOLOGY FOR PRODUCTION OF SUPERALLOY TURBINE BLADES
MA,Dexin,1,2()
)
图4. 一种低过冷能力合金的叶片缘板的宏观组织
Fig.4. Macromorphology of turbine blade of a superalloy having low undercoolability showing stray grains on the platform
