热力耦合对一种第四代镍基单晶高温合金1100℃蠕变组织演变的影响
徐静辉1, 李龙飞1(
), 刘心刚2, 李辉2, 冯强1
), 刘心刚2, 李辉2, 冯强1
Thermal-Stress Coupling Effect on Microstructure Evolution of a Fourth-Generation Nickel-Based Single-Crystal Superalloy at 1100oC
XU Jinghui1, LI Longfei1(), LIU Xingang2, LI Hui2, FENG Qiang1
), LIU Xingang2, LI Hui2, FENG Qiang1
图6. 镍基单晶高温合金在1100℃、不同应力状态下蠕变200 h纵截面枝晶干的显微组织
(a) 43 MPa (b) 54 MPa (c) 71 MPa (d) 96 MPa
Fig.6. SEM images of dendrite region at longitudinal sections of the nickel-based single-crystal superalloy after creep for 200 h at 1100oC and various stresses
