热输入对电弧增材制造船用高强钢组织与力学性能的影响

侯旭儒, 赵琳, 任淑彬, 彭云, 马成勇, 田志凌

Effect of Heat Input on Microstructure and Mechanical Properties of Marine High Strength Steel Fabricated by Wire Arc Additive Manufacturing

HOU Xuru, ZHAO Lin, REN Shubin, PENG Yun, MA Chengyong, TIAN Zhiling

表1 丝材与基板的化学成分 (mass fraction / %)

Table 1 Chemical compositions of substrate and welding wire

Material C Cr Si Mn Mo Ni Ti Cu V Nb P S Fe Substrate 0.18 0.044 0.27 1.26 0.009 0.26 0.002 0.18 0.003 0.013 0.003 0.0011 Bal. Wire ≤ 0.05 ≤ 0.2 0.62 1.40 0.27 2.29 < 0.10 - - - 0.0062 0.0015 Bal.