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4. 镍基单晶高温合金在1100℃、130 MPa条件下蠕变断裂试样不同位置纵截面的枝晶干显微组织形貌
(a) near the fracture (b) at 4 mm away from the fracture (uniform deformation zone)
(c) at the trapezoid zone (d) the rupture specimen and positions for microstructure observations
Fig.4. SEM images of longitudinal section at different zones of the nickel-based single-crystal superalloy after creep rupture at 1100oC under 130 MPa
