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, 赵云松, 鲁凡, 张剑, 李龙飞, 冯强

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 Siliang, ZHAO Yunsong, LU Fan, ZHANG Jian, LI Longfei, FENG Qiang

表2 铸态及固溶态镍基单晶高温合金经过热等静压处理前后的枝晶偏析系数

Table 2 ki of alloy elements in the used nickel-based SX superalloy before and after HIP treatment

Specimen Re W Al Nb Mo Cr Co Ta Ni AC 2.23 1.66 0.86 0.43 0.94 1.08 1.14 0.64 0.97 AS 1.66 1.28 0.94 0.97 0.98 1.02 1.03 0.86 0.96 ACH 1.75 1.41 0.94 0.85 1.00 1.05 1.05 0.81 0.97 ASH 1.37 1.17 0.97 0.94 0.91 0.99 1.00 0.95 0.99