Carbonic high-entropy alloy coating and preparation method thereof
A high-entropy alloy and coating technology, applied in metal material coating process, coating and other directions, can solve the problem of poor hardness of high-entropy alloy coating
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[0026] The present invention also provides a method for preparing the carbon-containing high-entropy alloy coating described in the above technical solution, comprising the following steps:
[0027] Co powder, Cr powder, Cu powder, Fe powder, Mn powder and carbon powder are mixed and homogenized to obtain mixed powder;
[0028] drying the mixed powder to obtain a dry powder;
[0029] The dry powder is subjected to plasma cladding on the surface of the substrate to obtain the carbon-containing high-entropy alloy coating.
[0030] In the invention, Co powder, Cr powder, Cu powder, Fe powder, Mn powder and carbon powder are mixed and homogenized to obtain mixed powder. In the present invention, the particle size of the Co powder, Cr powder, Cu powder, Fe powder and Mn powder is independently preferably 80-200 mesh, more preferably 100-150 mesh, and the Co powder, Cr powder, Cu powder , the purity of Fe powder and Mn powder are preferably greater than 99.9%. In the present inve...
Embodiment 1
[0039] Co, Cr, Cu, Fe, Mn as the main element powder, the purity of the powder is greater than 99.9%, and the particle size is between 100 and 150 mesh;
[0040] Choose C as secondary element powder, the purity of the powder is greater than 99.9%, and the particle size is between 100 and 150 mesh;
[0041] Mixed powder ratio, the main element powders Co, Cr, Cu, Fe, Mn are carried out according to the equiatomic ratio of 1:1:1:1:1, after C powder is added to the main element mixed powder, the C in the carbon powder The molar ratio of element to Co is 0.2:1, and it is poured into a high-energy machine for homogenization. Ball milling parameters: the ratio of ball to material is 10:1, the rotational speed of the ball mill is 100r / min, the ball milling time is 4h, and argon protection is carried out during the ball milling process to obtain mixed powder.
[0042] The mixed powder is dried in a drying oven, the drying process: the temperature is 125° C., and the drying time is 2 ...
Embodiment 2
[0048] Co, Cr, Cu, Fe, Mn as the main element powder, the purity of the powder is greater than 99.9%, and the particle size is between 100 and 150 mesh;
[0049] Choose C as secondary element powder, the purity of the powder is greater than 99.9%, and the particle size is between 100 and 150 mesh;
[0050] Mixed powder ratio, the main element powders Co, Cr, Cu, Fe, Mn are carried out according to the equiatomic ratio of 1:1:1:1:1, after C powder is added to the main element mixed powder, the C in the carbon powder The molar ratio of element to Co is 0.1:1, and it is poured into a high-energy machine for homogenization. Ball milling parameters: the ratio of ball to material is 10:1, the rotational speed of the ball mill is 100r / min, the ball milling time is 4h, and argon protection is carried out during the ball milling process to obtain mixed powder.
[0051] The mixed powder was dried in a drying oven, the drying process: the temperature was 135° C., and the drying time was...
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