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8 WAAM成形Al-Mg-Sc系合金的微观组织和力学性能[58]

Fig.8 Microstructure (a, b) and mechanical properties (c, d) of WAAM Al-Mg-Sc alloys[58] (HAGBs——high-angle grain boundaries, 15°; LAGBs—low-angle grain boundaries, 2°-15°; GS—average grain size;YS—yield strength, UTS—ultimate tensile strength; TD—travelling direction, BD—building direction) (a) AlMgScZr (b) AlMgScTi (c) hardness (d) tensile properties