Mg-Zn-Zr系合全变形制品是当前使用较为广泛的高强轻合金材料,但是,因其合金铸锭塑性较差,故它的挤压制品、锻件及板材等得用一次挤压棒材和带板等,再通过二次压力加工方法来制得。本文研究了向Mg-Zn-Zr系合金中添加Y、Nd来改善合金铸锭塑性,从而达到用一次变形加工来获得挤压制品、锻件及板材方法的可行性问题,结果表明;在Mg-Zn-Zr系的MB15合金中添加1％Y和1％Nd,因其铸锭晶粒被细化,而可用铸锭直接制取挤压制品、锻件与板材,所获得的制品室温机械性能优于MB15合金,腐蚀性能则与MB15合金相当。 Mg-Zn-Zr fully deformed products are currently widely used high-strength light alloy materials, however, due to its poor plasticity of ingots, so its extrusion products, forgings and plates and so use a single extrusion bar And with plates, etc., and then through the secondary pressure processing methods to obtain. In this paper, the feasibility of adding Y and Nd to the Mg-Zn-Zr alloy to improve the ductility of the alloy ingot so as to obtain the extruded products, forgings and plates by one-time deformation processing was studied. The results show that when Mg- Zn-Zr-based MB15 alloy added 1% Y and 1% Nd, as the ingot grains are refined, and can be prepared directly from the ingot extrusion products, forgings and plates, the obtained product room temperature mechanical properties excellent MB15 alloy, corrosion performance and MB15 alloy is quite.