Titanium and titanium alloy particles coated with low-hardness metal on the surface and preparation method thereof
A low-hardness metal and surface coating technology, which is applied in metal processing equipment, transportation and packaging, coating, etc., can solve the problems of reducing the extension plasticity and forming ability of titanium-based composite materials, so as to avoid coarse and loose crystals and ensure Effect of improving sphericity and bonding strength
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Embodiment 1
[0031] In this embodiment, copper-coated CT20 titanium alloy particles are uniformly and continuously coated on the surface of CT20 titanium alloy particles to form a honeycomb core-shell structure with CT20 titanium alloy particles as the core and copper as the shell.
[0032] The preparation method of the CT20 titanium alloy particles coated with copper on the surface of the present embodiment comprises the following steps:
[0033]Step 1. Selection of raw material powder: select spherical CT20 titanium alloy powder with a particle size of 100 mesh to 150 mesh and a Mohs hardness of 6.0 as the titanium-based powder, select a particle size of 200 mesh to 300 mesh, and a Mohs hardness of 2.5. Flake copper powder with a purity of 99.95% is used as the coating powder;
[0034] Step 2, high-energy ball milling treatment: Mix 100g of the titanium-based powder selected in step 1 and 100g of the wrapped powder evenly to obtain a mixed powder, place the mixed powder in a planetary ba...
Embodiment 2
[0040] In this embodiment, nickel-coated TC4 titanium alloy particles are uniformly and continuously coated on the surface of the TC4 titanium alloy particles to form a honeycomb core-shell structure with TC4 titanium alloy particles as the core and nickel as the shell.
[0041] The preparation method of the TC4 titanium alloy particles coated with nickel on the surface of the present embodiment comprises the following steps:
[0042] Step 1. Raw material powder selection: select spherical TC4 titanium alloy powder with a particle size of 60 mesh to 100 mesh and a Mohs hardness of 6.5 as the titanium-based powder, select a particle size of 150 mesh to 200 mesh, and a Mohs hardness of 3.5. Spherical nickel powder with a purity of 99.99% is used as the coating powder;
[0043] Step 2, high-energy ball milling treatment: Mix 90g of the titanium-based powder selected in step 1 and 30g of the wrapped powder evenly to obtain a mixed powder, place the mixed powder in a planetary ball...
Embodiment 3
[0048] In this embodiment, silver-coated CT20 titanium alloy particles are uniformly and continuously coated on the surface of CT20 titanium alloy particles to form a honeycomb core-shell structure with CT20 titanium alloy particles as the core and silver as the shell.
[0049] The preparation method of the CT20 titanium alloy particles coated with silver on the surface of the present embodiment comprises the following steps:
[0050] Step 1. Raw material powder selection: Select spherical CT20 titanium alloy powder with a particle size of 60 mesh to 100 mesh and a Mohs hardness of 6.0 as the titanium-based powder, select a particle size of 150 mesh to 200 mesh, and a Mohs hardness of 2.5. Flake silver powder with a purity of 99.99% is used as the coating powder;
[0051] Step 2, high-energy ball milling treatment: mix 100g of the titanium-based powder selected in step 1 and 40g of the wrapped powder evenly to obtain a mixed powder, place the mixed powder in a planetary ball m...
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