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

表2 抗热腐蚀镍基单晶高温合金的热处理参数

Table 2 Heat treatment parameters of hot-corrosion resistant nickel-based single-crystal superalloys

Alloy Heat treatment 2Ta 1245oC, 4 h, AC + 1120oC, 4 h, AC + 870oC, 20 h, AC 5Ta 1265oC, 4 h, AC + 1130oC, 4 h, AC + 870oC, 20 h, AC 8Ta 1275oC, 4 h, AC + 1130oC, 4 h, AC + 870oC, 20 h, AC