Fine grain titanium fiber pumice magnesium alloy composite material and preparation method thereof
A technology of composite materials and titanium fibers, which is applied in the field of metal materials, can solve problems such as complex processes and achieve the effect of preventing the growth of grains
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Embodiment 1
[0028] Preparation of fine-grained titanium fiber: Al is 7% by weight percentage, Cr is 3%, V is 5%, Mo is 3%, Gd is 0.05%, Sn is 0.003%, and the rest is Ti for batching;
[0029] The raw material is melted in a liquid riser with a heating device to form a Ti alloy liquid with a melting temperature of 1780-1820°C; Moving down, when the plunger moves up, the liquid level in the riser can be raised, so that the alloy liquid can be pulled out by the flange of the runner to form fine-grained titanium fibers. The runner adopts a water-cooled copper alloy runner with a flange on the rim . The alloy liquid contacts the flange of the rotating water-cooled copper alloy runner through the liquid riser, and the flange of the water-cooled copper alloy runner pulls the alloy liquid out to form fine-grained titanium fibers. The linear speed of the runner flange is 17-20m / s , Turn on the water-cooling system of the runner before the runner starts running, and the temperature of the water en...
Embodiment 2
[0035] Magnesium alloy substrate by weight percentage: Al is 8%, Gd is 0.05%, Gr is 0.05%, Mo is 0.005%, Si is 0.09%, V is 0.009%, Sn is 0.09%, and the rest is Mg for batching;
[0036] Fine-grained titanium fiber by weight percentage: titanium fiber Al is 9%, Cr is 5%, V is 7%, Mo is 4.9%, Gd is 0.15%, Sn is 0.09%, and the rest is Ti for batching; The volume ratio of the titanium-based alloy fiber and pumice is 1:1, the addition of silica sol is 1-2% of the total weight of the titanium-based alloy fiber and pumice mixture, and the titanium-based alloy fiber and pumice account for the magnesium alloy matrix. 45%-55% of the volume. Its preparation process is with embodiment one.
Embodiment 3
[0038] Magnesium alloy substrate by weight percentage: Al is 6%, Gd is 0.04%, Gr is 0.03%, Mo is 0.003%, Si is 0.06%, V is 0.0059%, Sn is 0.009%, and the rest is Mg for batching;
[0039] The content of fine-grained titanium fiber by weight percentage: Al is 8%, Cr is 4%, V is 6%, Mo is 4%, Gd is 0.1%, Sn is 0.008%, and the rest is Ti for batching; when preparing the preform The volume ratio of titanium-based material fiber and pumice is 1:1, the addition of silica sol is 1-2% of the weight of the titanium-based alloy material fiber and pumice mixture, and the titanium-based alloy material fiber and pumice account for 45% of the magnesium alloy matrix -55%. Its preparation process is with embodiment one.
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