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1 硅基脱芯工艺处理不同时间后样品的室温拉伸性能
Table 1 Tensile properties of DZ40M alloy immersed in Si-based core leaching medium for different times
Leaching time
/h
Tensile strength/MPa Yield strength/MPa Reduction
of area/%
Elongation
/%
0 603 465 7 7
300 630 450 11.5 11.5
600 595 460 5 6.5