Reinforced magnesium-lithium alloy of long-period structure and preparation method of reinforced magnesium-lithium alloy
A long-period structure, magnesium-lithium alloy technology, applied in the field of metal materials, can solve problems such as limiting the popularization and application of magnesium-lithium alloys, increasing the production cost of magnesium-lithium alloys, etc., and achieving the effects of increasing the melt refining process, low density and simple operation
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[0060] Example 1
[0061] This embodiment provides a long-period structure-reinforced magnesium-lithium alloy, the composition and mass percentage of which are: 11wt% Li, 1wt% Y, 0.2wt% Zn, 0wt% Zr, and the impurity elements Si, Fe, Cu and Ni The total amount is less than 0.02wt%, and the balance is Mg.
[0062] The preparation method of the magnesium-lithium alloy includes two process steps of smelting in an atmospheric environment and subsequent heat treatment in an ordinary furnace.
[0063] Among them, the previous smelting process is in SF 6 And CO 2 It is carried out under the protection of mixed gas without a vacuum environment. The steps are as follows:
[0064] (1) Baking material: take pure Mg, Mg-Y master alloy, pure Zn, Mg-Zr master alloy and Li block respectively, weigh 3% of the prepared alloy mass and weigh the lithium salt protection flux and 2% of the refined flux. Then, the above-mentioned raw materials (except Li blocks) are respectively preheated at 200°C for more...
Example Embodiment
[0074] Example 2
[0075] This embodiment provides a long-period structure reinforced magnesium-lithium alloy composition and its mass percentages are: 16wt% Li, 5wt% Y, 2wt% Zn, 0.6wt% Zr, impurity elements Si, Fe, Cu and Ni The total amount is less than 0.02wt%, and the balance is Mg.
[0076] The preparation method of the magnesium-lithium alloy includes two process steps of smelting in an atmospheric environment and subsequent heat treatment in an ordinary furnace.
[0077] Among them, the previous smelting process is in SF 6 And CO 2 It is carried out under the protection of mixed gas without a vacuum environment. The steps are as follows:
[0078] (1) Baking material: Take pure Mg, Mg-Y master alloy, pure Zn, Mg-Zr master alloy and Li block respectively, weigh 9% of the prepared alloy mass and weigh the lithium salt protection flux and 6% of the refined flux, Then, preheat all the above-mentioned raw materials at 250°C for more than 3 hours; the lithium salt protection flux is ...
Example Embodiment
[0088] Example 3
[0089] This embodiment provides a long-period structure reinforced magnesium-lithium alloy composition and its mass percentages: 13.5wt% Li, 3wt% Y, 1.1wt% Zn, 0.3wt% Zr, impurity elements Si, Fe, Cu and The total amount of Ni is less than 0.02wt%, and the balance is Mg.
[0090] The preparation method of the magnesium-lithium alloy includes two process steps of smelting in an atmospheric environment and subsequent heat treatment in an ordinary furnace.
[0091] Among them, the previous smelting process is in SF 6 And CO 2 It is carried out under the protection of mixed gas without a vacuum environment. The steps are as follows:
[0092] (1) Baking material: Take pure Mg, Mg-Y master alloy, pure Zn, Mg-Zr master alloy and Li block respectively, weigh the lithium salt protection flux and 4% of the refined flux according to the quality of the prepared alloy. Then, the above-mentioned raw materials (except Li blocks) are respectively preheated at 225°C for more than 3...
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