增/降氧过程对高温合金粉末表面特性和合金性能的影响：粉末存储到脱气处理

郑亮, 张强, 李周, 张国庆

Effects of Oxygen Increasing/Decreasing Processes on Surface Characteristics of Superalloy Powders and Properties of Their Bulk Alloy Counterparts: Powders Storage and Degassing

ZHENG Liang, ZHANG Qiang, LI Zhou, ZHANG Guoqing

表1 HIP-1和HIP-2块体合金分别在650℃、890 MPa和750℃、530 MPa条件下的持久性能

Table 1 Stress rupture properties of HIP-1 and HIP-2 bulk alloys at 650oC, 890 MPa and 750oC, 530 MPa

Stress rupture condition Alloy Rupture life / h El / % A / % 650oC, 890 MPa HIP-1 29.1 ± 1.2 27.7 ± 1.1 25.2 ± 0.9 HIP-2 22.0 ± 0.5 22.5 ± 1.9 21.6 ± 1.2 750oC, 530 MPa HIP-1 32.4 ± 0.8 14.1 ± 0.3 16.3 ± 0.4 HIP-2 28.1 ± 0.6 10.1 ± 1.7 10.9 ± 1.3