Metallic titanium particle reinforced magnesium-based composite material and vacuum stirring casting method and application thereof
A particle-reinforced, composite material technology, applied in the field of magnesium alloys, can solve the problems of complex process, long preparation process and high preparation cost
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Embodiment 1
[0053] What this embodiment provides is metal titanium particles reinforced AZ31 magnesium alloy composite material, the average particle size of titanium particles is 30 μm, and the volume fraction is 5%, and its preparation process by vacuum stirring casting method is as follows:
[0054] Step 1: Put 7kg of AZ31 magnesium alloy ingot into the crucible in the vacuum stirring casting equipment, close the equipment and evacuate to 0.1Pa;
[0055] Step 2: Open the gas distribution system, and pass in the mixed protective gas of carbon dioxide and sulfur hexafluoride with a volume ratio of 100:1 to above 0.1 MPa;
[0056] Step 3: Turn on the crucible heating device to heat up to 710°C to melt the AZ31 magnesium alloy ingot, and keep it warm for 0.5h. At the same time, 1 kg of titanium powder with an average particle size of titanium particles of 30 μm and a volume fraction of 5% is put into a container containing titanium particles, and heated to 100° C. for preheating and heat p...
Embodiment 2
[0060] The difference between this embodiment and Embodiment 1 is that the magnesium alloy substrate is AZ91 magnesium alloy.
[0061] figure 2 For the microstructure of the titanium metal particle reinforced AZ91 magnesium alloy composite material corresponding to this example, it is observed that the metal titanium particles are evenly distributed in the alloy.
Embodiment 3
[0063] The difference between this example and Example 2 lies in that the average particle diameter of metal titanium particles is 5 μm.
[0064] image 3 For the microstructure of the titanium metal particle reinforced AZ91 magnesium alloy composite material corresponding to this example, it is observed that the metal titanium particles are evenly distributed in the alloy.
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