核电站DMWJ中材料拘束的影响与优化

杨杰, 王雷

Effect and Optimal Design of the Material Constraint in the DMWJ of Nuclear Power Plants

YANG Jie, WANG Lei

表1 异种金属焊接接头4种材料的化学成分[35] (mass fraction / %)

Table 1 Chemical compositions of the four materials used for fabrication of the DMWJ[35]

Material C S P Si Mn Ni Cr Mo Cu Al Ti Co Fe Nb A508 0.200 0.001 0.005 0.20 1.36 0.96 0.17 0.47 - - - - Bal. - 316L 0.025 0.001 0.005 0.52 1.73 11.69 17.89 2.43 - - - - Bal. - 52Mb 0.020 <0.001 0.003 0.14 0.25 60.39 28.91 0.01 0.01 0.67 0.56 0.01 9.03 <0.01 52Mw 0.025 0.001 0.004 0.18 0.24 58.00 29.18 0.01 0.02 0.75 0.53 0.02 10.23 <0.01