Wire-based friction stir additive manufacturing of AZ31B magnesium alloy: Precipitate behavior and mechanical properties

• Wire-based friction stir additive manufacturing was utilized for magnesium alloy. • Continuous formation of defect-free components was prepared by solid-state process. • Refined grains and alternating texture structures along the BD were obtained. • The interfaces between Mg 17 Al 12 and matrix, as well as, Al 8 Mn 5 were coherent. • The alloy showed isotropy with 257 MPa/12 % in BD and 251 MPa/12 % in TD. Simultaneous achievement of defect-free formation and high mechanical performance in additive manufactured Mg alloys remains challenging, bottlenecked by flammability, porosities, and oxidation risks within the melting-solidifying process. Here, wire-based friction stir additive manufacturing (W-FSAM),…

• NN
  National Natural Science Foundation of China

  Awards: 52205350, 52175301, 52305345