High-strength magnesium-zinc-manganese-yttrium magnesium alloy material

Abstract

The invention relates to a high-strength magnesium-zinc-manganese-yttrium magnesium alloy material which is prepared from the following components in percentage by mass: 1.5-9.0% of Zn, 0.5-1.5% of Mn, 0.3-10% of Y, at most 0.15% of inevitable impurity and the balance of magnesium. Compared with the commercial high-strength wrought magnesium alloy ZK60 and high-zinc-content magnesium-zinc-manganese magnesium alloy, the material provided by the invention has obviously higher tensile strength and yield strength; and compared with the Mg97Zn1Y2 alloy, the material provided by the invention has different components, and has obvious higher tensile strength and yield strength on the premise of the same plasticity. The magnesium alloy material can obtain high performance only by carrying out wrought treatment on common wrought treatment equipment without taking any special technical measure, and therefore, the magnesium alloy material has the advantages of low cost and high commercial value.

Description

technical field [0001] The invention relates to a light metal material, which belongs to the field of magnesium alloy production in nonferrous metals, in particular to a series of high-strength magnesium-zinc-manganese-yttrium-magnesium alloy materials with good mechanical properties. Background technique [0002] As the lightest commercial metal structural material, magnesium alloy has high specific strength, specific stiffness, excellent damping performance, and many characteristics such as antimagnetic, shielding, heat dissipation, easy cutting, easy recycling, etc. It is widely used in automobiles, electronics, electrical appliances, and transportation. It also has extremely important application value and broad application prospects in the fields of aerospace, aviation and national defense military industry. Magnesium alloys can be divided into two categories: wrought magnesium alloys and cast magnesium alloys. Compared with cast magnesium alloys, wrought magnesium all...

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Problems solved by technology

Found through literature search, "Rapidly solidified powder metallurgy Mg 97 Zn 1 Y 2 alloys with excellent tensile yield strength above 600MPa” (rapid solidification powder metallurgy smelting Mg with ultra-high strength above 600MPa 97 Zn 1 Y 2 alloys), in this paper the Mg prepared under rapid cooling and powder metallurgy (RS P / M) conditions 97 Zn 1 Y 2 The alloy has a very high strength, reaching 610MPa, but its disadvantage is that although the strength is very high, it cannot be applied in actual production due to the complex processing equipment and process of rapid cooling and powder metallurgy smelting, and the strict requirements on the outside world.

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