A kind of biodegradable zn-mg-zr alloy material, preparation method and application
A technology of zn-mg-zr and alloy materials, applied in the field of biodegradable metal materials, can solve problems such as accumulation and narrow inner cavity, and achieve the effects of reducing costs, improving processing performance, improving mechanical properties and corrosion resistance
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Embodiment 1
[0046] Using pure zinc (99.9wt.%), pure magnesium (99.9wt.%) and a zinc-zirconium master alloy with a Zr content of 33% as raw materials, and considering the amount of burning loss according to the mass ratio of zinc, magnesium and zirconium is 99:0.5: 0.5 mixing, the mixed raw materials were melted at 550°C, held for 5 minutes, then slag was removed, and then poured into a mold with a diameter of 60mm at a pouring temperature of 520°C, and the Zn-0.5Mg-0.5Zr alloy ingot was obtained after cooling. Stir and stand still when melting, and obtain Zn-0.5Mg-0.5Zr alloy ingot after cooling.
[0047] Using a metallographic microscope to observe the morphology of the as-cast Zn-Mg-Zr alloy, it is obtained as follows figure 1 In the metallographic picture shown, the grain size is large, the magnesium-zinc phase is distributed along the grain boundary, and the zinc-zirconium phase is dispersed on the matrix.
[0048] Using a scanning electron microscope to further observe the morpholog...
Embodiment 2~5
[0056] Examples 2 to 5 all use pure zinc, pure magnesium and zinc-zirconium mesophase as raw materials, the method for preparing Zn-Mg-Zr alloy, the test method for mechanical properties and the test method for degradation rate are all the same as in Example 1, and the specific process The parameters and performance results are shown in Table 1.
[0057] The preparation method, test method and process parameter and performance result of table 1 embodiment 2~5
[0058]
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