Low-cost high-strength high-ductility rare earth magnesium alloy and preparation method thereof
A ductile, low-cost technology, applied in the field of rare earth magnesium alloys, can solve the problems of high cost of use and high content of rare earth elements, and achieve the effects of low cost, excellent strength performance, ductility, and superior performance
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Embodiment 1
[0036] This embodiment provides a rare earth magnesium alloy and a preparation method thereof. The composition of the material is calculated by weight percentage: Y 5.0wt%, Gd 0.1wt%, Sm 2.0wt%, Zn 2.0wt%, Sn 0.01wt% %, Bi 2.0wt%, Sb0.01wt%, Zr 0.5wt%, the rest is Mg and unavoidable impurity content, wherein the total content of unavoidable impurity is not higher than 0.1wt%. Include the following steps:
[0037] (a) Ingredients: Pure magnesium ingots, zinc ingots, tin ingots, bismuth ingots, antimony ingots, Mg-Y master alloys, Mg-Gd master alloys, Mg-Sm master alloys, Mg-Zr master alloys are selected according to the design alloy group As a raw material, it is placed in a blast oven at 200°C for preheating and drying for later use.
[0038] (b) Melting: Preheat the melting furnace crucible to 350°C, add magnesium ingots, heat up to 710°C, melt the magnesium ingots, heat up to 750°C, add zinc ingots, tin ingots, bismuth ingots, antimony ingots, Mg- Y master alloy, Mg-Gd mas...
Embodiment 2
[0048] This embodiment provides a rare earth magnesium alloy and a preparation method thereof. The composition of the material is calculated by weight percentage: Y0.1wt%, Gd6.0wt%, Sm 6.0wt%, Zn 0.01wt%, Sn 2.0wt% %, Bi 0.01wt%, Sb 1.0wt%, Zr 0.4wt%, the rest is Mg and unavoidable impurity content, wherein the total content of unavoidable impurity is not higher than 0.1wt%. Include the following steps:
[0049] (a) Ingredients: Pure magnesium ingots, zinc ingots, tin ingots, bismuth ingots, antimony ingots, Mg-Y master alloys, Mg-Gd master alloys, Mg-Sm master alloys, Mg-Zr master alloys are selected according to the design alloy group As a raw material, it is placed in a blast oven at 200°C for preheating and drying for later use.
[0050] (b) Melting: Preheat the melting furnace crucible to 350°C, add magnesium ingots, heat up to 720°C, melt the magnesium ingots, heat up to 730°C, add zinc ingots, tin ingots, bismuth ingots, antimony ingots, Mg- Y master alloy, Mg-Gd mast...
Embodiment 3
[0060] This embodiment provides a rare earth magnesium alloy and a preparation method thereof. The composition of the material is calculated by weight percentage: Y 6.0wt%, Gd3.0wt%, Sm 0.1wt%, Zn 0.5wt%, Sn 0.8wt% %, Bi 0.3wt%, Sb0.6wt%, Zr 0.3wt%, the rest is Mg and unavoidable impurity content, wherein the total content of unavoidable impurity is not higher than 0.1wt%. Include the following steps:
[0061] (a) Ingredients: Pure magnesium ingots, zinc ingots, tin ingots, bismuth ingots, antimony ingots, Mg-Y master alloys, Mg-Gd master alloys, Mg-Sm master alloys, Mg-Zr master alloys are selected according to the design alloy group As a raw material, it is placed in a blast oven at 200°C for preheating and drying for later use.
[0062] (b) Melting: preheat the melting furnace crucible to 400°C, add magnesium ingots, heat up to 720°C, melt the magnesium ingots, heat up to 750°C, add zinc ingots, tin ingots, bismuth ingots, antimony ingots, Mg- Y master alloy, Mg-Gd master...
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