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8 钎缝间隙为0.10 mm接头经过两级时效后的微观组织 (a) backscattered electron image without corrosion etch (b) secondary electron image after corrosion etch (c) magnified image for the selected area A in Fig.8b

Fig.8 Microstructures of the joints with the gap size of 0.10 mm after the ageing heat treatment