三联熔炼GH4169合金大规格铸锭与棒材元素偏析行为

张勇, 李鑫旭, 韦康, 韦建环, 王涛, 贾崇林, 李钊, 马宗青

Element Segregation in GH4169 Superalloy Large-Scale Ingot and Billet Manufactured by Triple-Melting

ZHANG Yong, LI Xinxu, WEI Kang, WEI Jianhuan, WANG Tao, JIA Chonglin, LI Zhao, MA Zongqing

表5 利用EPMA测定的GH4169棒材不同部位的元素分布 (mass fraction / %)

Table 5 Element distributions at different locations in GH4169 billet through EPMA

Position of billet Al Ti Mo Nb Ni Cr Fe Edge 0.453 1.089 2.758 4.875 54.393 18.798 19.266 0.427 1.044 2.801 4.778 54.658 18.796 19.508 0.411 1.051 2.803 4.771 54.325 18.796 19.421 Average value 0.430 1.061 2.787 4.808 54.459 18.797 19.398 R/2 0.440 1.094 2.740 4.975 53.962 19.172 19.298 0.502 1.122 2.742 4.835 53.877 19.225 19.312 0.488 1.109 2.716 4.870 54.178 19.098 19.268 Average value 0.477 1.108 2.733 4.893 54.006 19.165 19.293 Center 0.482 1.165 3.008 5.029 54.515 18.818 19.203 0.444 1.147 3.024 5.191 54.483 18.781 18.964 0.452 1.149 2.941 5.133 54.442 18.957 19.115 Average value 0.459 1.154 2.991 5.118 54.480 18.852 19.094