第二代单晶高温合金DD6高性能钎焊接头的组织及力学性能

李文文, 陈波, 熊华平, 尚泳来, 毛唯, 程耀永

Microstructure and Mechanical Property of the Second- Generation Single-Crystal Superalloy DD6 Joint

LI Wenwen, CHEN Bo, XIONG Huaping, SHANG Yonglai, MAO Wei, CHENG Yaoyong

图7 钎缝间隙为0.15 mm并预填FGH95合金粉后的DD6钎焊接头的微观组织 (a) backscattered electron image and macro morphology (inset) without corrosion etch (b) secondary electron images after corrosion etch (The inset is the local magnification for the area near the interface)

Fig.7 Microstructures of the DD6 brazed joint with the gap size of 0.15 mm (FGH95 powders were prefilled into the brazing seam )