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3 GH4169合金自耗锭不同部位元素偏析系数(k)

Table 3 Segregation coefficients (k) of elements in different locations of VAR ingot of GH4169 alloy

Position of ingot Al Ti Nb Mo Edge 1.074 0.729 0.555 0.876 R/2 1.075 0.674 0.446 0.857 Center 1.164 0.566 0.376 0.804