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(
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Fracture Location Shift of Dissimilar Metal Welds Under Coupled Thermal-Stress Effect
LI Kejian1,2, ZHANG Yu1,2, CAI Zhipeng1,2,3,4()
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图12. 低应力水平下DMW界面断裂的形成过程
Fig.12. Formation process of oxide notch at interface
(a) a step resulting from uncoordinated deformation at 620 ℃, 160 MPa for 100 h
(b) interfacial debonding at 620 ℃, 160 MPa for 300 h
(c) an oxide notch formed at interface at 620 ℃, 160 MPa for 800 h
