电弧增材制造高强度Al-Mg-Sc系合金研究进展：冶金缺陷、微观组织和力学性能

马成勇, 侯旭儒, 赵琳, 阚成玲, 曹洋, 彭云, 田志凌

Research Progress on High-Strength Al-Mg-Sc Alloys Fabricated by Wire Arc Additive Manufacturing: Metallurgical Defects, Microstructure, and Performance

MA Chengyong, HOU Xuru, ZHAO Lin, KAN Chengling, CAO Yang, PENG Yun, TIAN Zhiling

图9 WAAM成形Al-Mg-Sc-Zr合金的微观组织和耐腐蚀性能[61]

Fig.9 Microstructures and corrosion resistances of WAAM Al-Mg-Sc-Zr alloy[61] (ITZ—inter-layer zone, MPB—molten pool boundary, WADED—wire arc directed energy deposited, i—corrosion current density, OCP—open circuit potential) (a, b) inverse pole figures (IPFs) (c, d) open circuit potential (c) and statistic results (d) in 3.5%NaCl solution (e-h) potentiodynamic polarization curves