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
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

图3. 铸态及固溶态镍基单晶高温合金经热等静压处理前后显微孔洞的宏观分布及微观形貌
(a1, a2) AC;(b1, b2) AS;(c1, c2) ACH;(d1, d2) ASH

Fig.3. Distributions (a1~d1) and morphological characteristics (a2~d2) of micropores in the used nickel-based SX superalloy before and after HIP treatment with the condition of 1300 ℃, 30 MPa, 2 h+1300 ℃, 100 MPa, 3 h, showing the effects of solid-solution treatment and HIP treatment on the micropores under different states