Thixoforming of Wrought Aluminum Alloy 1973
In this paper, the microstructure and mechanical properties of thixoformed 1973 (AlZn5.5Mg2.4Cu1.7Zr) wrought aluminium alloy were investigated. A cooling slope was used to produce non-dendritic billets. Thixoforming process parameters were determined as follows: die temperature of 250 °C, feedstock temperature of 600 - 605 °C, punch velocity of 7 mm/s. Mechanical properties of thixoformed with ultimate strength of 461 MPa and elongation of 3,1 % in the T2 condition. The lower properties of the thixoformed material are mainly associated with porosity.
Qiang Zhu, Ahmed Rassili, Stephen P. Midson and Xiao Gang Hu
T. B. Ngo et al., "Thixoforming of Wrought Aluminum Alloy 1973", Solid State Phenomena, Vol. 285, pp. 203-209, 2019