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

图12 不同除气工艺下FGH96高温合金粉末经HIP固结成形后合金的显微组织

Fig.12 Microstructures of HIPed alloys consolidated from FGH96 superalloy powders with different degassing processes, indicating the severity of PPBs defects (a) 25oC degassing (b) 300oC degassing (c) 600oC degassing (d) 300oC + 600oC degassing