脱芯工艺对钴基高温合金DZ40M组织和性能的影响

佟健, 陈甲祺, 郑志, 于永泗, 宁礼奎, 刘恩泽

Effect of Leaching Process for Ceramic Core on Micro-structure and Mechanical Property of Investment Cast Co-base Superalloy DZ40M

TONG Jian, CHEN Jiaqi, ZHENG Zhi, YU Yongsi, NING Likui, LIU Enze

表5 脱芯处理前后DZ40M合金试样中的平均氢含量

Table 5 Effect of core leaching technology on the average hydrogen content of DZ40M alloy

Leaching process As-cast Si-based core leaching medium for 24 h Al-based core leaching medium for 300 h Hydrogen content /×10-6 0.6 1.4 168