Low-alloyed high-performance superplastic magnesium alloy and preparation method thereof
A magnesium alloy, high-performance technology, applied in the field of low-alloy high-performance superplastic magnesium alloy and its preparation, to achieve the effects of reducing production cost, coordinating plastic strain, and excellent room temperature performance
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Embodiment 1
[0030] (1) According to the mass percent of elements in the alloy: zinc 1.0, silver 0.2, calcium 0.2, zirconium 0.2, the rest is magnesium, take the required pure magnesium, pure zinc, pure silver, magnesium-25% calcium master alloy, magnesium -30% zirconium master alloy;
[0031] (2) in SF 6 and CO 2 Under the protection of the mixed gas, the pure magnesium ingot with the above content is preheated in the crucible to 200-400°C, and then heated to 660-680°C for melting to obtain a pure magnesium melt;
[0032] (3) adding pure zinc and magnesium-calcium master alloy preheated at 100-150°C to the above-mentioned pure magnesium melt, and keeping the temperature at 660-680°C for 3-5 minutes;
[0033] (4) Continue to heat up to 680-750°C, add pure silver and magnesium-zirconium master alloy preheated at 100-150°C to the above-mentioned magnesium melt, and keep warm for 5-10 minutes;
[0034] (5) Cool down to 660-680°C, stir for 2-10 minutes to make the ingredients uniform, then ...
Embodiment 2
[0041] (1) According to the mass percent of elements in the alloy: zinc 1.0, silver 0.05, calcium 0.2, zirconium 0.2, and the rest are magnesium, take the required pure magnesium, pure zinc, pure silver, magnesium-25% calcium master alloy, magnesium -30% zirconium master alloy;
[0042] (2) in SF 6 and CO 2 Under the protection of the mixed gas, the pure magnesium ingot with the above content is preheated in the crucible to 200-400°C, and then heated to 660-680°C for melting to obtain a pure magnesium melt;
[0043] (3) adding pure zinc and magnesium-calcium master alloy preheated at 100-150°C to the above-mentioned pure magnesium melt, and keeping the temperature at 660-680°C for 3-5 minutes;
[0044] (4) Continue to heat up to 680-750°C, add pure silver and magnesium-zirconium master alloy preheated at 100-150°C to the above-mentioned magnesium melt, and keep warm for 5-10 minutes;
[0045](5) Cool down to 660-680°C, stir for 2-10 minutes to make the ingredients uniform, ...
Embodiment 3
[0052] (1) According to the mass percent of elements in the alloy: zinc 1.0, silver 0.2, calcium 0.2, zirconium 0.05, and the rest are magnesium, take the required pure magnesium, pure zinc, pure silver, magnesium-25% calcium master alloy, magnesium -30% zirconium master alloy;
[0053] (2) in SF 6 and CO 2 Under the protection of the mixed gas, the pure magnesium ingot with the above content is preheated in the crucible to 200-400°C, and then heated to 660-680°C for melting to obtain a pure magnesium melt;
[0054] (3) adding pure zinc and magnesium-calcium master alloy preheated at 100-150°C to the above-mentioned pure magnesium melt, and keeping the temperature at 660-680°C for 3-5 minutes;
[0055] (4) Continue to heat up to 680-750°C, add pure silver and magnesium-zirconium master alloy preheated at 100-150°C to the above-mentioned magnesium melt, and keep warm for 5-10 minutes;
[0056] (5) Cool down to 660-680°C, stir for 2-10 minutes to make the ingredients uniform,...
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