1240 MPa级Ti-38644高锁螺栓的拉伸疲劳增寿机理
赵庆云(
),程思锐,黄宏
),程思锐,黄宏
Mechanism of Fatigue Life Enhancement for 1240 MPaHi-lock Bolt of Ti-38644 Ti-alloy
ZHAO Qingyun(),CHENG Sirui,HUANG Hong
),CHENG Sirui,HUANG Hong
图6. 未经挤压强化高锁螺栓和挤压强化后的高锁螺栓断裂位置的微观组织
Fig.6. Microstructures of the Hi-bolts at the fracture (a) Hi-bolt without extrusion process; (b) Hi-bolt under extrusion process
