以晶粒尺寸为30 μm的样品为例，在无电流以及电流密度为别为5 A/m

Taking a sample with a grain size of 30 μm as an example, under the conditions of no current and current density of 5 A/mm2 and 55 A/mm2, the yield strength is 155 MPa, 155 MPa and 118 MPa, respectively, and the tensile strength They were 331 MPa, 332 MPa, and 322 Mpa, respectively, showing a decreasing trend, while the elongation was 19.4%, 20.5%, and 23.3%, respectively, and gradually increased, indicating that the lower current density has a greater impact on the yield strength and tensile strength of the sample. Small, but as the current density increases, its influence also increases.

In the case of samples with a grain size of 30 m, yield strength was 155 MPa, 155 MPa and 118 MPa, respectively, with no current and a current density of 5 A/mm2 and 55 A/mm2, respectively 32 MPa and 322 Mpa showed a downward trend, while the elongation rate was 19.4%, 20.5% and 23.3%, respectively, gradually increasing, indicating that the lower current density had less effect on the yield strength and tensile strength of the sample, but with the increase of current density, the impact on it also increased.

The grain size is 30 μ Under the condition of no current and current density of 5 A / mm ~ 2 and 55 A / mm ~ 2, the yield strength is 155 MPa, 155 MPa and 118 MPa respectively, the tensile strength is 331 MPa, 332 MPa and 322 MPa respectively, and the elongation is 19.4%, 20.5% and 23.3% respectively, which increases gradually, indicating that lower current density has little effect on the yield strength and tensile strength, However, with the increase of current density, the influence on it also increases.<br>