异种金属焊接接头在热-力耦合作用下的断裂位置转移机理
李克俭1,2, 张宇1,2, 蔡志鹏1,2,3,4()
Fracture Location Shift of Dissimilar Metal Welds Under Coupled Thermal-Stress Effect
LI Kejian1,2, ZHANG Yu1,2, CAI Zhipeng1,2,3,4()

图5. 应力为200 MPa时高温持久断裂时间(tf)与温度(T)的关系

Fig.5. Temperature dependence of failure life for DMWs at the stress of 200 MPa (Q—diffusion activation energy, R—gas constant)