Preparation method of rapidly dissolving magnesium alloy
A magnesium alloy, fast technology, applied in the field of corrosion of metal materials, can solve the problems of uncontrollable corrosion time and long corrosion time, and achieve the effect of increasing the corrosion rate and increasing the application range
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Embodiment 1
[0027] A rapidly dissolving magnesium alloy, the chemical composition of which is (mass fraction): 0.5% Ni, 1% Cu, 0.5% Fe, 0.5% Si, 7.5% magnesium for primary smelting, and 90% magnesium for secondary smelting.
[0028] The addition of alloying element Ni greatly improves the corrosion rate of magnesium alloys and expands the application of rapidly dissolving magnesium alloys under the requirements of rapid corrosion; among them, Ni element has the greatest influence on the corrosion rate of alloy materials. With the increase of Ni element, the alloy The corrosion rate of the material increases; and the corrosion rate increases slowly when the Ni element accounts for 0.5%-2%wt, and the corrosion rate increases faster when the Ni element accounts for 2%-6%wt.
[0029] The addition of alloying element Cu can also help to increase the dissolution rate of magnesium alloys, and at the same time enhance the tensile strength and compressive strength of magnesium alloys, which can mee...
Embodiment 2
[0043] A rapidly dissolving magnesium alloy, the chemical composition of which is (mass fraction): 2% Ni, 1% Cu, 1% Fe, 1% Si, 15% of primary molten magnesium, and 80% of secondary molten magnesium;
[0044] The alloy preparation method is:
[0045] 1) Surface treatment of magnesium ingots, nickel ingots, copper ingots, iron ingots, and silicon ingots with a purity of 99.9% is selected to remove surface oxides and oil stains;
[0046] 2) Place the treated magnesium ingot which is 3 times the weight of other alloying elements in a melting furnace and heat it up to 740°C, keep it warm for 30 minutes, stir and remove slag during the heat preservation process, and obtain molten magnesium;
[0047] 3) Add the treated nickel ingots, copper ingots, iron ingots and silicon ingots into the magnesium liquid in step 2), conduct a smelting and keep warm at a temperature of 810°C, keep warm for 20 minutes to obtain a molten alloy, and stir during the keep warm and slag removal;
[0048] ...
Embodiment 3
[0054] A rapidly dissolving magnesium alloy, its chemical composition is (mass fraction): 4% Ni, 1.5% Cu, 1.5% Fe, 1.5% Si, 25.5% of primary molten magnesium, 66% of secondary molten magnesium;
[0055] The alloy preparation method is:
[0056] 1) Surface treatment of magnesium ingots, nickel ingots, copper ingots, iron ingots, and silicon ingots with a purity of 99.9% is selected to remove surface oxides and oil stains;
[0057] 2) Place the treated magnesium ingot that is 3 times the weight of other alloying elements in a melting furnace and heat it up to 760°C, keep it warm for 25 minutes, stir and remove slag during the heat preservation process, and obtain molten magnesium;
[0058] 3) Add the treated nickel ingots, copper ingots, iron ingots and silicon ingots into the magnesium liquid in step 2), conduct a smelting and keep warm at a temperature of 830°C and keep warm for 30 minutes to obtain a molten alloy, and stir during the keep warm and slag removal;
[0059] 4) Af...
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