C和B的含量对K417G镍基高温合金的凝固行为和高温持久性能的影响

舒德龙, 严志, 王道红, 谢君, 侯桂臣, 盛乃成, 李金国, 于金江, 孙晓峰, 周亦胄

Influence of C- and B-content on Solidification and High Temperature Stress Rupture Behavior of Nickel-based Superalloy K417G

SHU Delong, YAN Zhi, WANG Daohong, XIE Jun, HOU Guichen, Naicheng SHENG, LI Jinguo, YU Jinjiang, SUN Xiaofeng, ZHOU Yizhou

图6 不同C、B含量的K417G合金在1240℃的等温淬火的组织形貌

Fig.6 Microstructures of the alloys with various C and B contents after isothermal quenching at 1240℃ (a) No.1; (b) No.2; (c) No.3; (d) No.4