GH4065A合金铸态的组织和元素偏析及其均匀化

赵书伟, 孙文儒, 吕文龙, 张伟红, 邱克强

Elements Segregation and Microstructure Homogenization of Cast GH4065A Superalloy

ZHAO Shuwei, SUN Wenru, LV Wenlong, ZHANG Weihong, QIU Keqiang

表1 EDS测出的枝晶间析出相的化学成分

Table 1 EDS results of composition of the phases precipitated in the interdendritic region (atomic fraction, %)

Phases Elements Ti Cr Co Ni B* W Zr Nb Mo Al N* Matrix 2.72 18.53 14.13 56.89 0.00 1.55 0.05 0.21 2.03 3.95 0.00 A 9.88 12.59 10.94 57.93 0.00 0.45 0.08 1.12 2.17 4.85 0.00 B 3.26 26.88 1.95 3.91 32.78 3.43 0.07 3.27 24.43 0.02 0.00 C 25.29 7.23 4.94 21.31 0.00 0.44 0.12 0.31 0.63 1.47 38.26 D 15.82 3.75 8.89 63.75 0.00 0.35 0.38 1.92 0.82 4.32 0.00 E 3.66 5.20 10.09 62.29 0.00 0.36 11.89 2.97 0.44 3.09 0.00