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, 张宇, 蔡志鹏

Fracture Location Shift of Dissimilar Metal Welds Under Coupled Thermal-Stress Effect

LI Kejian, ZHANG Yu, CAI Zhipeng

表1 DMW两侧母材(BM)和焊材(WM)的化学成分 (mass fraction / %)

Table 1 Chemical compositions of base metals and filler metal of the DMW

Material Ni Cr Fe Mo Co Al Ti B C Nickel based BM Bal. 22.18 0.33 9.03 11.97 1 0.44 0.0045 0.057 High Cr steel BM 0.75 10.41 Bal. 1.08 - 0.007 - - 0.12 ERNiCrCoMo-1 55 22.50 - 8.9 11.2 1.27 0.39 - 0.07 Material Nb Si Mn S P Cu W N V Nickel based BM 0.03 <0.1 0.01 0.0012 0.012 0.005 - - - High Cr steel BM 0.05 0.0001 0.45 0.07 0.007 0.01 1.01 0.05 0.2 ERNiCrCoMo-1 - 0.3 0.4 0.002 0.003 0.1 - - -