A high-strength and tough degradable zinc alloy with layered ultra-fine grain structure and its preparation method and application
A technology of ultra-fine grain and zinc alloy, which is applied in the direction of metal layered products, chemical instruments and methods, layered products, etc., can solve the problems of zinc alloy strength and plasticity mismatch, and achieve the effect of good plasticity and toughness
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Embodiment 1
[0045] Such as Figure 7 ~ Figure 8 As shown, a high-strength and tough degradable zinc alloy with layered ultrafine grain structure, including sequentially distributed η-Zn+CuZn 5 Copper-rich phase ultrafine-grained layer and η-Zn+Mg 2 Zn 11 The two-layer alternate arrangement structure of magnesium-rich phase ultrafine crystal layer.
[0046] The zinc alloy includes the following components: Cu: 1.5%, Mg: 0.75%, the rest is Zn, and the mass ratio of Mg / Cu in the zinc alloy is 1:2.
[0047] A method for preparing a high-strength and tough degradable zinc alloy with a layered ultrafine grain structure (preparing a Zn-1.5%Cu-0.75%Mg alloy with a layered ultrafine grain structure), comprising the following steps:
[0048] (1) Get an appropriate amount of pure zinc ingots, pure copper ingots and pure magnesium ingots, and weigh them according to the above-mentioned components;
[0049] (2) Put pure zinc ingots, pure copper ingots and pure magnesium ingots in CO 2 and SF 6 S...
Embodiment 2
[0055] A high-strength and tough degradable zinc alloy with layered ultrafine grain structure, including sequentially distributed η-Zn+CuZn 5 Copper-rich phase ultra-fine grain layer, CuZn 5 Ribbon phase layer and η-Zn+Mg 2 Zn 11 The three-layer alternate arrangement structure of magnesium-rich phase ultrafine crystal layer.
[0056] The zinc alloy includes the following components: Cu: 4.0%, Mg: 1.2%, and the rest is Zn, and the mass ratio of Mg / Cu in the zinc alloy is 1:3.3.
[0057] A preparation method of a high-strength and tough degradable zinc alloy with a layered ultrafine grain structure, preparing a Zn-4%Cu-1.2%Mg alloy (mass percentage) with a layered ultrafine grain structure, the preparation method is as follows:
[0058] (1) Ingredients: weighing according to the ingredients of the above components;
[0059] (2) Smelting: put pure zinc ingots, pure copper ingots and pure magnesium ingots in CO 2 and SF 6 Smelting under the protection of a mixed atmosphere t...
Embodiment 3
[0065] A high-strength and tough degradable zinc alloy with layered ultrafine grain structure, including sequentially distributed η-Zn+CuZn 5 Copper-rich phase ultra-fine grain layer, CuZn 5 Ribbon phase layer and η-Zn+Mg 2 Zn 11 The three-layer alternate arrangement structure of magnesium-rich phase ultrafine crystal layer.
[0066] The zinc alloy includes the following components: Cu: 3.0%, Mg: 1%, and the rest is Zn, and the mass ratio of Mg / Cu in the zinc alloy is 1:3.
[0067] A preparation method of a high-strength and tough degradable zinc alloy with a layered ultrafine grain structure, preparing a Zn-3%Cu-1%Mg alloy (mass percentage) with a layered ultrafine grain structure, the preparation method is as follows:
[0068] (1) Ingredients: weighing according to the ingredients of the above components;
[0069] (2) Smelting: put pure zinc ingots, pure copper ingots and pure magnesium ingots in CO 2 and SF 6 Smelting under the protection of a mixed atmosphere to obta...
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Abstract
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