镍基高温合金K417G与氧化物耐火材料的界面反应

宋庆忠, 潜坤, 舒磊, 陈波, 马颖澈, 刘奎

Interfacial Reaction Between Nickel-Based Superalloy K417G and Oxide Refractories

SONG Qingzhong, QIAN Kun, SHU Lei, CHEN Bo, MA Yingche, LIU Kui

表1 制作氧化物坩埚的原料纯度

Table 1 Purities of raw materials for manufacturing oxide crucibles

Raw material Purity / (mass fraction, %) Al2O3 ≥ 99.61, MgO ≤ 0.10, SiO2 ≤ 0.13, CaO ≤ 0.16, Fe2O3 ≤ 0.002, TiO2 ≤ 0.01, Na2O ≤ 0.03 CaO ≥ 96.78, MgO ≤ 0.53, Al2O3 ≤ 0.20, SiO2 ≤ 0.05, TFe ≤ 0.01, TiO2 ≤ 0.014, S ≤ 0.001, Loss ≤ 2.01 MgO ≥ 98.5, Fe ≤ 0.005, Ba ≤ 0.003, Cl- ≤ 0.07, SO 42- ≤0.05, Pb ≤ 0.005, Loss ≤ 4.5, Y2O3 ≥ 99.99, Loss ≤ 0.01 ZrO2 ≥ 99.0, Fe2O3 ≤ 0.005, MgO ≤ 0.05, CaO ≤ 0.05, TiO2 ≤ 0.005, SiO2 ≤ 0.01, Loss ≤ 1