热等静压对铸态及固溶态第二代镍基单晶高温合金显微缺陷及持久性能的影响
和思亮1, 赵云松2, 鲁凡1, 张剑2, 李龙飞1(
), 冯强1
), 冯强1
Effects of Hot Isostatic Pressure on Microdefects and Stress Rupture Life of Second-Generation Nickel-Based Single Crystal Superalloy in As-Cast and As-Solid-Solution States
HE Siliang1, ZHAO Yunsong2, LU Fan1, ZHANG Jian2, LI Longfei1(), FENG Qiang1
), FENG Qiang1
图6. 铸态及固溶态镍基单晶高温合金经热等静压处理前后的枝晶间共晶组织
(a) AC；(b) ACH；(c) AS；(d) ASH
Fig.6. The interdendritic eutectic microstructures in the used nickel-based SX superalloy before and after HIP treatment, showing that the eutectic microstructures were reduced obviously by solid-solution rather than by HIP treatments. Furthermore, the eutectic microstructure was completely eliminated in ASH specimen
