High-ductility low-temperature quick-degraded magnesium alloy and preparation method thereof
A rapid degradation and high elongation technology, applied in the field of magnesium alloy materials, can solve problems such as the inability to meet the requirements of the production area, and achieve the effects of refining alloy grains, increasing degradation speed, and improving plasticity
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Embodiment 1
[0026] A magnesium alloy with high elongation and rapid degradation at low temperature, the magnesium alloy contains the following components in terms of mass percentage: Gd6.0%, Ni0.18%, Zr0.5%, unavoidable impurities≤0.3%, and the balance is Mg. The magnesium alloy is prepared as follows:
[0027] (1) Melt the magnesium ingot at 710°C, add Mg-Zr master alloy, Mg-Gd master alloy, and Mg-Ni master alloy after melting, then keep it at 700°C for 30 minutes, and then pass it into argon for 15 minutes of refining , and then remove the slag from the alloy melt and let it stand at 700°C until the impurities settle, and finally make a semi-continuous ingot after semi-continuous casting at 680°C;
[0028] (2) Homogenization treatment: heat the semi-continuous ingot prepared in step (1) to 350° C. for 8 hours, then keep it warm for 24 hours, then air-cool it to room temperature, heat it up to 480° C. for 12 hours again, and keep it warm for 12 hours;
[0029] (3) Quenching treatment: ...
Embodiment 2
[0032] A magnesium alloy with high elongation and rapid degradation at low temperature. The magnesium alloy contains the following components in terms of mass percentage: Gd6.5%, Ni0.1%, Mn0.8%, unavoidable impurities≤0.3%, and the balance is Mg. The magnesium alloy is prepared as follows:
[0033] (1) Melt the magnesium ingot and the Mg-Mn master alloy together at 690°C, and then add the Mg-Gd master alloy and Mg-Ni master alloy after melting, then keep it at 680°C for 25 minutes, and then pass it into argon for refining After 5 minutes, the alloy melt was deslagged and left to stand at 690°C until the impurities settled, and finally semi-continuously cast at 675°C to obtain a semi-continuous ingot;
[0034](2) Homogenization treatment: heat the semi-continuous ingot prepared in step (1) to 330° C. for 6 hours, then keep it warm for 28 hours, then air-cool it to room temperature, heat it up to 460° C. for 8 hours again, and keep it warm for 18 hours;
[0035] (3) Quenching t...
Embodiment 3
[0038] A high-elongation low-temperature rapid degradation magnesium alloy, the magnesium alloy contains the following components by mass percentage: Gd5.0%, Ni 0.25%, Zr 0.25%, Mn 0.6%, unavoidable impurities ≤ 0.3%, the balance is Mg. The magnesium alloy is prepared as follows:
[0039] (1) Melt the magnesium ingot and the Mg-Mn master alloy together at 710°C, then add the Mg-Zr master alloy, Mg-Gd master alloy, and Mg-Ni master alloy after melting, and then keep the temperature at 720°C for 20 minutes. Then pass through the argon gas for refining for 10 minutes, then remove the slag from the alloy melt and let it stand at 710°C until the impurities settle, and finally make semi-continuous ingots after semi-continuous casting at 685°C;
[0040] (2) Homogenization treatment: heat the semi-continuous ingot prepared in step (1) to 380° C. for 12 hours, then keep it warm for 16 hours, then air-cool it to room temperature, heat it up to 470° C. for 10 hours again, and keep it wa...
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