A kind of Fe-containing soluble magnesium alloy and preparation method thereof
A technology for magnesium alloys and intermediate alloys, applied in the field of Fe-containing soluble magnesium alloys and their preparation, can solve the problems of difficult control of Fe-containing cathode phase size and distribution, unstable product performance, low solubility, etc. and dissolution performance stability, good dissolution rate, stable corrosion rate effect
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[0026] In one embodiment of the present disclosure, a method for preparing a Fe-containing soluble magnesium alloy is provided, including:
[0027] According to the mass percentage ratio of the above Fe-containing soluble magnesium alloy, weigh pure magnesium ingot, Mg-Nd master alloy, Mg-Ce master alloy, pure iron powder or iron oxide powder; under the protection of argon, smelt pure magnesium ingot, Mg-Nd master alloy, Mg-Ce master alloy, refining and slag removal, adding pure iron powder or iron oxide powder and pouring into ingot at the same time; homogenize the ingot, cut into billets of corresponding size and peel; hot extrusion Pressed into bars; aged.
[0028] The solubility of Fe in molten magnesium alloy is low, so it is difficult to prepare it by conventional smelting process. In the disclosure, pure iron powder or iron oxide powder is added into the magnesium alloy solution in the form of refiner before casting. Among them, iron oxide will react with magnesium to...
Embodiment 1
[0036] A soluble magnesium alloy containing Fe, the alloy is Mg-Nd-Ce-Fe magnesium alloy, composed of the following elements by mass percentage: Nd 3.60wt%, Ce 1.00wt%, Fe 1.50wt%, the rest is Mg and not Avoid impurity elements.
[0037] Preparation process: Weigh raw materials according to the above ratio: pure magnesium ingot, Mg-30% Nd master alloy, Mg-30% Ce master alloy, iron oxide powder;
[0038] Under the condition of argon protection, the above-mentioned pure magnesium ingot, Mg-Nd master alloy, and Mg-Ce master alloy were melted at 740°C, kept for 50 minutes, stirred for 10 minutes; refined for 30 minutes, and then heated to 780°C for 40 minutes. Add iron oxide powder at 740°C and pour into semi-continuous ingot at the same time;
[0039] The above-mentioned ingots were homogenized at 540°C for 6 hours, the cooling method was air cooling, and then cut into corresponding billets and peeled;
[0040] The billet obtained in the previous step was extruded into rods at an...
Embodiment 2
[0042] A soluble magnesium alloy containing Fe, which is a Mg-Nd-Ce-Fe magnesium alloy, composed of the following elements by mass percentage: Nd 5.0wt%, Ce 2.00wt%, Fe 2.0wt%, the rest is Mg and not Avoid impurity elements.
[0043] Raw materials are weighed according to the ratio: pure magnesium ingot, Mg-30% Nd master alloy, Mg-30% Ce master alloy, pure iron powder;
[0044] Under the condition of argon protection, the above pure magnesium ingot, Mg-Nd master alloy, and Mg-Ce master alloy were melted at 760°C, kept for 60 minutes, stirred for 5 minutes; refined for 20 minutes, and then heated to 780°C for 30 minutes. Add pure iron powder at 740°C and pour into semi-continuous ingot at the same time;
[0045] The above-mentioned ingots were homogenized at 540°C for 8 hours, the cooling method was air cooling, and then cut into corresponding billets and peeled;
[0046] Extrude the billet obtained in the previous step into rods under the conditions of extrusion temperature ...
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