High toughness wrought magnesium alloy and preparation method thereof
A technology for deforming magnesium alloys with high strength and toughness, applied in the field of materials, can solve the problems of low comprehensive performance, insufficient plasticity, and high impurity content in magnesium alloys, and achieve the effects of good impurity treatment, reduction of impurities and inclusions, and simple treatment of alloy melts.
Inactive Publication Date: 2011-01-05
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology
The current deformed magnesium alloy materials generally have the shortcomings of insufficient plasticity and low comprehensive performance, and the preparation of traditional processes usually results in high impurity content in magnesium alloys
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Abstract
The invention relates to high toughness wrought magnesium alloy and a preparation method thereof, belonging to the technical field of materials. The alloy comprises the following components: 4.5 to 5.5% of Zn, 2.5 to 3.5% of Nd, 0.25 to 0.5% of Zr and the balance of Mg; and the tensile strength of the alloy is 260 to 300MPa, the yield strength is 250 to 290MPa, and the fracture elongation rate is6 to 9%. The preparation method comprises the following steps: pure magnesium cast ingot, metallic zinc, metallic neodymium and magnesium-zirconium alloy are prepared according to the set components,circulatory smelting is carried out by adopting a smelting furnace, a lattice filtration device, a weight measurement instrument and a circulating pump, then cast ingot is formed by casting and is heated up to 325 to 335 DEG C, rolling is carried out after heat preservation, and the total deformation quantity is 62 to 68%. The high toughness wrought magnesium alloy prepared by the method has higher toughness and is easy to roll.
Description
A kind of high-strength toughness deformed magnesium alloy and preparation method thereof technical field The invention belongs to the technical field of materials, in particular to a high-strength toughness deformed magnesium alloy and a preparation method thereof. Background technique Magnesium alloy is currently the lightest metal structural material in practical application. It has the advantages of low density, high specific strength, excellent machining performance and good shock absorption. It is widely used in aerospace, automobile and 3C products. Compared with as-cast materials, wrought magnesium alloy materials have more development prospects and potential. Through deformation, plates, rods, tubes, and profiles of various sizes can be produced, and through the control of material structure and the application of heat treatment technology, it can obtain more than cast magnesium alloys. Alloy materials have higher strength, better ductility, and more diverse mecha...
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IPC IPC(8): C22C23/04C22C1/03C22F1/06
Inventor 杨林吴伟林立陈立佳刘正高晓丹邹鹏
Owner SHENYANG POLYTECHNIC UNIV