高合金化GH4065镍基变形高温合金点状偏析研究

王资兴,黄烁,张北江,王磊,赵光普

Study on Freckle of a High-Alloyed GH4065 Nickel Base Wrought Superalloy

Zixing WANG,Shuo HUANG,Beijiang ZHANG,Lei WANG,Guangpu ZHAO

表2 点偏区域第二相EPMA分析结果

Table 2 EPMA analyses of the secondary phase in the GH4065 alloy freckle (mass fractoin / %)

Morphology Al Ti Nb Cr Co Mo W B C Ni Phase Block 0.10 37.20 34.71 0.72 0.79 4.40 6.01 1.47 12.40 2.20 MC Block 0.10 4.18 3.23 19.74 2.32 38.20 22.11 8.03 1.03 3.06 M3B2 Lath-like 2.42 12.10 2.09 3.62 8.68 1.96 2.65 0.52 0.81 67.97 η Particle 4.18 11.69 1.16 3.28 7.78 0.95 1.63 0.43 0.92 69.97 γ′