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6 WAAM成形不同Sc和Zr元素含量合金的气孔率及气孔分布[43]

Fig.6 Statistical results of pores in the components of WAAW Al-Mg-Sc-Zr alloys[43] (a-c) porosity (a), number density (b), and average diameter (c) at different welding speeds (d-g) distributions of diameter (d) and partially enlarged view (inset) in the components at different welding speeds (d, f) and spatial distributions of pores which diameter was above 50 μm (e, g) with 0.36Sc + 0.11Zr (d, e) and 0.72Sc + 0.23Zr (f, g) alloys