热等静压对第三代单晶高温合金DD33显微组织和持久性能的影响

何禹锋, 王莉, 王栋, 王绍钢, 卢玉章, 谷阿山, 申健, 张健

Effect of Hot Isostatic Pressing on Microstructure of a Third-Generation Single Crystal Superalloy DD33

HE Yufeng, WANG Li, WANG Dong, WANG Shaogang, LU Yuzhang, GU Ashan, SHEN Jian, ZHANG Jian

表2 实验所涉及热等静压参数及热处理制度

Table 2 HIP parameters and heat treatment processes used in this work

Specimen State Heat treatment process AC As-cast - SHT Standard heat treatment 1335℃/10 h/AC*+1180℃/4 h/AC*+870℃/24 h/AC* AH As-cast+HIP 1310℃/120 MPa/4 h AHS1 As-cast+HIP+solution treatment 1 1310℃/120 MPa/4 h+1325℃/2 h/AC* AHS2 As-cast+HIP+solution treatment 2 1310℃/120 MPa/4 h+1325℃/6 h/AC* AHS3 As-cast+HIP+solution treatment 3 1310℃/120 MPa/4 h+1325℃/10 h/AC* AHS3HT1 As-cast+HIP+solution treatment 3+heat treatment 1 1310℃/120 MPa/4 h+1325℃/10 h/AC* +1120℃/4 h/AC*+870℃/24 h/AC* AHS3HT2 As-cast+HIP+solution treatment 3+heat treatment 2 1310℃/120 MPa/4 h+1325℃/10 h/AC* +1150℃/4 h/AC*+870℃/24 h/AC* AHS3HT3 As-cast+HIP+solution treatment 3+heat treatment 3 1310℃/120 MPa/4 h+1325℃/10 h/AC* +1180℃/4 h/AC*+870℃/24 h/AC*