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

表2 图2b中不同微区的EDS分析结果 (atomic fraction / %)

Table 2 EDS analysis results for the typical microzones in Fig.2b

Microzone Ni Co W Ta Al Cr Mo Pd Ti B b1 61.4 9.7 10.2 6.0 6.0 4.8 1.9 - - - b2 58.1 10.6 9.2 5.6 5.3 6.4 2.0 1.7 1.1 - b3 51.3 15.7 4.1 - 3.8 15.4 2.0 5.2 2.5 - b4 51.8 9.8 - 2.7 5.0 3.4 - 19.1 8.2 - b5 47.9 19.5 - 2.4 2.6 15.4 1.0 7.4 3.8 - b6 6.1 1.5 3.9 33.5 - 0.6 2.0 0.2 19.6 32.6 b7 4.4 3.2 20.7 3.0 - 22.6 16.3 0.4 1.7 27.7