| 摘要 |
<p>Disclosed is a Mg-Ca-Zn-Zr magnesium alloy sheet, which comprises the following chemical components in percentage by weight: 0.5%-1.0% of Ca, 0.4%-1.0% of Zn, 0.5%-1.0% of Zr and the balance being Mg and inevitable impurities, wherein the average grain size of the magnesium alloy sheet is≤10μm, the texture strength of the base surface is≤5, and after annealing at 250-400°C, the texture structure of the base surface is≤3; the ultimate draw ratio at room temperature is higher than that of AZ31; the grain size is obviously less than the average grain size of the AZ31B sheet manufactured under the same conditions; and the sheet texture is significantly weakened. The magnesium alloy has simple composition without precious alloy elements, the process is widely applicable, the production cost is low, and the magnesium alloy sheet can be used as a plate for components such as an inner plate of an automobile door, an inner plate of an engine cover, an inner plate of a trunk lid, an interior trim plate, a rail transit vehicle body, and a 3C product shell.</p> |
