Titanium/titanium carbide core-shell structure reinforced aluminum matrix composite material and preparation method thereof
A core-shell structure and composite material technology, applied in the field of aluminum matrix composite materials, can solve the problem of not being able to have high strength and high toughness at the same time, and achieve the effects of good toughness, good metallurgical bonding, and good interface bonding.
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[0039] The invention discloses a method for preparing a titanium / titanium carbide core-shell structure reinforced aluminum matrix composite material, which specifically comprises the following steps:
[0040] Step 1, preparation of titanium / titanium carbide core-shell powder
[0041] Step 1.1, weighing the following components by mass percentage: 5.5% to 17.2% graphite powder, 72.8% to 84.5% titanium powder, and the rest are iron powder. The total weight percentage of the above components is 100%;
[0042]Step 1.2, mixing, mix the components weighed in step 1.1 evenly to get the mixed powder; the mixing adopts V-type mixing machine, the main process parameters of mixing: speed 60r / min~80r / min, mixing time 6h~24h;
[0043] Step 1.3, the compact is preformed, and the mixed powder is pressed and formed by ordinary molding to obtain a compact. During the molding process, paraffin wax accounting for 2 to 4 wt% of the mixed powder is used as a forming agent, and the pressing pressu...
Embodiment 1
[0050] The preparation of a titanium / titanium carbide core-shell structure reinforced aluminum matrix composite material specifically comprises the following steps:
[0051] Step 1, preparation of titanium / titanium carbide core-shell powder
[0052] Step 1.1, weigh the following components by mass percentage: 5.5% graphite powder, 84.5% titanium powder, 10% iron powder, the total weight percentage of the above components is 100%, and the particle size of titanium powder is about 500 mesh, that is, The diameter is about 25 μm;
[0053] Step 1.2, mixing, mixing the components weighed in step 1.1 evenly to obtain the mixed powder; mixing using a V-type mixing machine, the main process parameters of mixing: speed 60r / min, mixing time 24h;
[0054] Step 1.3, preforming the green compact, adopting common molding to press the mixed powder to form a green compact, and using paraffin wax accounting for 4wt% of the mixed powder mass as a forming agent in the molding process, and determ...
Embodiment 2
[0062] The preparation of a titanium / titanium carbide core-shell structure reinforced aluminum matrix composite material specifically comprises the following steps:
[0063] Step 1, preparation of titanium / titanium carbide core-shell powder
[0064] Step 1.1, weigh the following components respectively by mass percentage: 14.75% graphite powder, 75.25% titanium powder, 10% iron powder, the total weight percentage of the above components is 100%, and the particle size of titanium powder is about 3000 mesh, i.e. The diameter is about 5 μm;
[0065] Step 1.2, mixing, mixing the components weighed in step 1.1 evenly to obtain mixed powder; mixing using a V-shaped mixing machine, the main process parameters of mixing: speed 70r / min, mixing time 23h;
[0066] Step 1.3, compaction preforming, adopting ordinary molding to press the mixed powder to form a compact, that is, to obtain a compact. During the molding process, paraffin wax accounting for 3wt% of the mass of the mixed powder...
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