High-plasticity rapidly-degradable magnesium alloy and preparation method thereof
A rapid degradation, magnesium alloy technology, applied in the field of magnesium alloys, can solve the problems of poor deformation ability and plasticity, and achieve the effects of improving comprehensive performance, plasticity, strength and plasticity
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Embodiment 1
[0022] A high plasticity rapidly degradable magnesium alloy, the preparation method of which is:
[0023] (1) Use pure magnesium, Mg-Gd master alloy, and Mg-Cu master alloy as raw materials, and make ingredients according to the magnesium alloy composition. The magnesium alloy includes the following components in weight percentage: Gd 3.0%, Cu 0.96%, and the balance is Mg.
[0024] (2) After the surface of the raw material is fully polished, it is smelted. First heat up to 750°C, in SF 6 and CO 2 Melting is carried out under the protection of a mixed gas, fully stirred after melting, left to stand, cooled to 720°C and kept for 25 minutes, and finally cooled in a brine bath to obtain an ingot.
[0025] (3) Heat the prepared alloy ingot at 400°C for 10 hours to fully eliminate casting defects.
[0026] (4) The homogenized alloy was preheated at 400°C for 30 minutes, the extrusion temperature was 400°C, the extrusion ratio was 11, and it was formed by one extrusion.
[002...
Embodiment 2
[0029] A high plasticity rapidly degradable magnesium alloy, the preparation method of which is:
[0030] (1) Use pure magnesium, Mg-Gd master alloy, Mg-Cu master alloy, and Mg-Zr master alloy as raw materials, and make ingredients according to the magnesium alloy composition. The magnesium alloy includes the following components by weight percentage: Gd 2.95%, Cu 0.89%, Zr 0.11%, and the balance is Mg.
[0031] (2) After the surface of the raw material is fully polished, it is smelted. First heat up to 750°C, in SF 6 and CO 2 Melting is carried out under the protection of a mixed gas, fully stirred after melting, left to stand, cooled to 720°C and kept for 25 minutes, and finally cooled in a brine bath to obtain an ingot.
[0032] (3) Heat the prepared alloy ingot at 400°C for 10 hours to fully eliminate casting defects.
[0033] (4) The homogenized alloy was preheated at 420°C for 30 minutes, the extrusion temperature was 420°C, the extrusion ratio was 28, and it was f...
Embodiment 3
[0036] A high plasticity rapidly degradable magnesium alloy, the preparation method of which is:
[0037] (1) Use pure magnesium, Mg-Gd master alloy, Mg-Cu master alloy, and Mg-Zr master alloy as raw materials, and make ingredients according to the magnesium alloy composition. The magnesium alloy includes the following components by weight percentage: 3.7% Gd, 0.97% Cu, 0.38% Zr, and the balance is Mg.
[0038] (2) After the surface of the raw material is fully polished, it is smelted. First heat up to 750°C, in SF 6 and CO 2 Melting is carried out under the protection of a mixed gas, fully stirred after melting, left to stand, cooled to 720°C and kept for 25 minutes, and finally cooled in a brine bath to obtain an ingot.
[0039] (3) Heat the prepared alloy ingot at 400°C for 10 hours to fully eliminate casting defects.
[0040] (4) The homogenized alloy was preheated at 420°C for 30 minutes, the extrusion temperature was 420°C, the extrusion ratio was 28, and it was fo...
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