Influence of traveling magnetic field on solidification defects and mechanical properties of ZL205A alloy sheet casts

The effect of local loading traveling magnetic field on shrinkage cavity and porosity and mechanical properties of ZL205A sheet casts was studied. The microstructure and mechanical properties were analyzed by scanning electron microscope and electronic universal material testing machine, respectively. Results show that under travelling magnetic field, the shrinkage cavity and porosity decrease greatly. After T6 heat treatment, the tensile strength, yield strength and elongation increase from 436.61 MPa, 390.22 MPa and 3.29% to 470.24 MPa, 416.97 MPa and 4.15%, respectively; the tensile strength and yield strength increase by 33.63 MPa and 26.75 MPa, respectively, and the elongation increases by 26.14%.