Zhennan Wang

TL;DR: In this article, the influence of the electric arc travel speed (TS) on the macro-morphology, microstructure, and mechanical properties of aluminum alloy was investigated, and the results indicated that samples fabricated at TS of 350mm/min possessed finer equiaxed grain and exhibited higher ultimate tensile strength (273.5 MPa) and yield strength (182.9

TL;DR: In this article, the relationship between the microstructure and mechanical properties of a thin-walled deposit of columnar dendrite arrays, including dendritic α-Mg matrix, interdendritic eutectics, and some dispersive η-Al8Mn5 phases, is analyzed.

TL;DR: In this article, the influence of solution temperature on the precipitation behavior of the α-Al phase and the microstructure evolution were investigated in detail, and the experimental and calculative results demonstrate that the precipitation strengthening of the θ" phase improves with the increasing solution temperature, and that the strengthening contribution of θ'' phase is 202.1 MPa, 165.2MPa, and 150.3 MPa corresponding to the solution temperature at 540,°C, 530 −C, and 520 −C.

TL;DR: In this paper, the authors investigated the hot deformation behavior and relative microstructural evolution of a wire + arc additive manufactured (WAAMed) 2219 Al alloy, in which hot compression was conducted in the temperature range of 300-480°C at the strain rates of 001-10 s−1 with a true strain of 60%.

TL;DR: In this paper, the evolution of grain structure, precipitated phases and corresponding mechanical properties of the as-deposited WAAM processed 2219 Al-Cu alloy are investigated, and the relationship between the solidification conditions and the number of prior Al3Zr nucleation sites is established.