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2 2种热输入下WAAM 590 MPa级船用高强钢构件的力学性能

Table 2 Mechanical properties of WAAM 590 MPa grade marine high strength steel components at two heat inputs

Sample Rm / MPa Rp0.2 / MPa A / % KV2 (-50oC) / J A-H 843 626 22 15 A-V 858 599 21 16 B-H 723 656 18 109 B-V 705 632 22 127