Mg alloy for being implanted in bone and preparation method of Mg alloy
A magnesium alloy and bone technology, applied in the field of alloys, can solve problems such as insecurity, achieve the effects of ensuring biocompatibility, excellent mechanical properties and corrosion resistance, and reducing costs
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Embodiment 1
[0035] A magnesium alloy for bone implantation, characterized in that: by weight percentage, the chemical composition is Zn 1.5%, Mn 0.6%, Ca 0.3%, Si 0.3%, Sr 0.45%, Li 1%, Cr 2.5% , Cu 1%, Mo 1.3%, Sc+La+Ce: 0.01%, Nb: 0.1%, the balance is Mg and unavoidable impurity elements, wherein the mass ratio of Sc, La, and Ce is 6:3:1.
[0036] The preparation method of the magnesium alloy for bone implantation,
[0037] (1) Ingredients: According to the composition design required by the magnesium alloy, the ingredients are first carried out, and the Mg-Zn master alloy is selected. The Mg:Zn mass ratio in the Mg-Zn master alloy is 0.8-0.82:1; the Mg-Sr master alloy is selected. The mass ratio of Mg:Sr is 0.42-0.44:1; Mg-Si master alloy is selected, wherein the mass ratio of Mg:Si is 48-49:1, and other low-melting point elements are in the form of pure metal with a purity of 99.99% and / or low melting point Added in the form of master alloy;
Embodiment 2
[0043] A magnesium alloy for bone implantation, characterized in that: by weight percentage, the chemical composition is: Zn2.5%, Mn1.1%, Ca 0.55%, Si 0.4%, Sr 0.6%, Li 1.6%, Cr 3%, Cu 1.25%, Mo 1.35%, Sc+La+Ce: 0.05%, Nb 0.65%, and the balance is Mg and unavoidable impurity elements. The mass ratio of Sc, La, and Ce is 6:3:1. The preparation method of the magnesium alloy for bone implantation,
[0044] (1) Ingredients: According to the composition design required by the magnesium alloy, the ingredients are first carried out, and the Mg-Zn master alloy is selected. The Mg:Zn mass ratio in the Mg-Zn master alloy is 0.8-0.82:1; the Mg-Sr master alloy is selected. The mass ratio of Mg:Sr is 0.42-0.44:1; Mg-Si master alloy is selected, wherein the mass ratio of Mg:Si is 48-49:1, and other low-melting point elements are in the form of pure metal with a purity of 99.99% and / or low melting point Added in the form of master alloy;
Embodiment 3
[0050] A magnesium alloy for bone implantation, characterized in that: by weight percentage, the chemical composition is: Zn 3%, Mn 1.1%, Ca 0.8%, Si 0.45%, Sr 0.8%, Li 1.8%, Cr 3.5% %, Cu 2%, Mo 1.4%, Sc+La+Ce: 0.08%, Nb: 0.8%, and the balance is Mg and unavoidable impurity elements. The mass ratio of Sc, La, and Ce is 6:3:1. The preparation method of the magnesium alloy for bone implantation,
[0051] (1) Ingredients: According to the composition design required by the magnesium alloy, the ingredients are first carried out, and the Mg-Zn master alloy is selected. The Mg:Zn mass ratio in the Mg-Zn master alloy is 0.8-0.82:1; the Mg-Sr master alloy is selected. The mass ratio of Mg:Sr is 0.42-0.44:1; Mg-Si master alloy is selected, wherein the mass ratio of Mg:Si is 48-49:1, and other low-melting point elements are in the form of pure metal with a purity of 99.99% and / or low melting point Added in the form of master alloy;
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