Ta对一种抗热腐蚀镍基单晶高温合金长时热暴露组织和蠕变性能的影响
刘静, 张思倩, 王栋, 王莉, 陈立佳

Effect of Ta on the Microstructure and Creep Properties of a Hot-Corrosion Resistant Ni-Based Single-Crystal Superalloy After Long-Term Exposure
LIU Jing, ZHANG Siqian, WANG Dong, WANG Li, CHEN Lijia
图8 3种合金在900℃热暴露不同时间后在900℃、275 MPa 条件下蠕变断裂后纵截面枝晶干的SEM像
Fig.8 SEM images of dendritic core at longitudinal section in 2Ta (a1-a4), 5Ta (b1-b4), and 8Ta (c1-c4) alloys crept rupture at 900oC and 275 MPa after thermal exposure at 900oC for 0 h (a1-c1), 500 h (a2-c2), 2000 h (a3-c3), and 8000 h (a4-c4)