High-precision magnesium alloy sheet and preparation method thereof
A magnesium alloy, high-precision technology, applied in the field of magnesium alloy materials, can solve the problems of high thermal cracking sensitivity, application limitations, poor alloy plasticity, etc., and achieve the effect of improving performance parameters and microstructure
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[0021] Example 1
[0022] A high-precision magnesium alloy sheet, which is prepared according to the following method:
[0023] 1) Raw material composition: (weight percentage): 0.2% yttrium, 0.06% titanium, 0.05% cerium, 0.05% lanthanum, 0.02% samarium, 0.5% zinc, 2% manganese, and the rest is magnesium;
[0024] 2) Raw material processing: take magnesium metal according to the above weight ratio, melt the magnesium metal under the protection of argon gas, and then heat it to 750°C to obtain Mg melt; take other metal raw materials according to the above weight ratio, and place it in a high-energy ball mill tank. After 3 hours of intermediate mixing and ball milling, a mixed powder of metal raw materials is obtained;
[0025] 3) Melting: start the resistance melting furnace, put the mixed powder obtained in step 2) into a crucible preheated to 350°C, and pass into SF when the temperature rises to 700°C 6 And N 2 Mixed shielding gas, the volume ratio of mixed gas is SF 6 And N 2 =1:200...
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[0028] Example 2
[0029] The yttrium metal and titanium metal in the raw materials are removed, and the other raw materials and the preparation process remain unchanged.
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[0030] Example 3
[0031] The cerium metal and lanthanum metal in the raw materials are removed, and the other raw materials and the preparation process remain unchanged.
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