Preparation method of magnesium-based composite material reinforced by titanium particles
A technology of particle reinforcement and composite materials, applied in the field of metal materials, can solve the problems of limiting the strengthening and toughening effect of titanium particles, longer material preparation cycle, large titanium particle size, etc., and achieve broad industrial application prospects, small size and compact structure Effect
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Embodiment 1
[0019] Weigh 1.99g of magnesium powder and 0.01g of titanium powder (both with a purity of 99.5wt.%) in the glove box, measure 5ml of n-hexane as grinding aid, put them into a ball mill jar together and seal it. Put the ball mill jar into the ball mill, the ball milling time is 50 hours, and the rotating speed of the ball mill is 1000rpm. After the reaction finishes, the volume fraction of titanium particles in the resulting composite material powder is 0.2%;
[0020] After ball milling, take the powder out of the glove box, and dry it under vacuum at 80°C for 10 hours; put the dried powder into a grinding tool, and cold press it into a block blank at room temperature with a pressure of 2 MPa; Put it into a press, and carry out high-pressure curing with a pressure of 4GPa at room temperature, and the holding time is 0.5 hours.
[0021] Under the protection of argon, degassing pre-annealing was performed on the high-pressure solidified composite block, the annealing temperatur...
Embodiment 2
[0023] Weigh 1.95g of magnesium powder and 0.05g of titanium powder (both with a purity of 99.5wt.%) in a glove box, measure 5ml of n-hexane as a grinding aid, put them into a ball mill jar and seal them together. Put the ball mill jar into the ball mill, the ball milling time is 30 hours, and the rotating speed of the ball mill is 1000rpm. After the reaction finishes, the volume fraction of titanium particles in the resulting composite material powder is 1%;
[0024] After ball milling, take the powder out of the glove box, and dry it under vacuum at 90°C for 10 hours; put the dried powder into a grinding tool, and cold press it into a block blank at room temperature with a pressure of 3 MPa; Put it into a press, and carry out high-pressure curing with a pressure of 5GPa at room temperature, and the holding time is 0.5 hours.
[0025] Under the protection of argon, degassing pre-annealing was carried out on the high-pressure solidified composite block, the annealing temperat...
Embodiment 3
[0029] Weigh 1.8g of magnesium powder and 0.2g of titanium powder (both with a purity of 99.5wt.%) in a glove box, measure 5ml of n-hexane as a grinding aid, put them into a ball mill jar and seal them together. Put the ball mill jar into the ball mill, the ball milling time is 20 hours, and the rotating speed of the ball mill is 1000rpm. After the reaction, the volume fraction of titanium particles in the resulting composite material powder was 4.1%;
[0030] After ball milling, take the powder out of the glove box, and dry it under vacuum at 100°C for 10 hours; put the dried powder into a grinding tool, and cold press it into a block blank at room temperature with a pressure of 4 MPa; Put it into a press, and carry out high-pressure curing with a pressure of 6GPa at room temperature, and the holding time is 0.5 hours.
[0031] Under the protection of argon, degassing pre-annealing was carried out on the high-pressure solidified composite block, the annealing temperature was...
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