Re和Ta对抗热腐蚀单晶高温合金900 ℃长期时效组织稳定性的影响

黄太文,卢晶,许瑶,王栋,张健,张家晨,张军,刘林

Effects of Rhenium and Tantalum on Microstructural Stability of Hot-Corrosion Resistant Single Crystal Superalloys Aged at 900 ℃

Taiwen HUANG,Jing LU,Yao XU,Dong WANG,Jian ZHANG,Jiachen ZHANG,Jun ZHANG,Lin LIU

表1 5种合金长期时效各阶段γ'相的Feret Ratio

Table1 Feret Ratio of the γ' precipitates during LTTE at 900 ℃ of five alloys

Alloy 100 h 200 h 500 h 1000 h 2000 h 5000 h 2Ta2Re 1.41±0.12 1.23±0.13 1.26±0.22 1.27±0.20 1.35±0.15 1.20±0.24 5Ta0Re 1.37±0.15 1.35±0.13 1.38±0.14 1.41±0.23 1.37±0.16 1.42±0.23 5Ta2Re 1.45±0.20 1.37±0.20 1.25±0.23 1.26±0.29 1.29±0.21 1.29±0.29 8Ta0Re 1.36±0.20 1.33±0.15 1.30±0.12 1.26±0.28 1.28±0.14 1.22±0.23 8Ta2Re 1.47±0.24 1.39±0.27 1.47±0.33 1.38±0.26 1.40±0.17 1.39±0.23