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10. HAZ断裂模式的试样在断口边缘附近的SEM像
Fig.10. Cross section SEM images of the area adjacent to facture surface of DMW failed in FGHAZ/ICHAZ (FGHAZ—fine-grained HAZ, ICHAZ—inter-critical HAZ)
(a) macroscopic image showing creep cavity (arrows)
(b) microscopic image showing creep cavity mainly initiated around coarsened carbides
