Rare earth-enhanced laser additive manufacturing femnsi micro-nano powder core wire material and preparation method thereof
A powder core wire and laser additive technology are applied in the field of laser additive manufacturing materials and their preparation, rare earth-enhanced FeMnSi micro-nano powder core wires and their preparation fields, and can solve the shape memory function. Loss and other problems, to achieve the effect of enhancing shape memory function, reducing burning loss, and inhibiting function loss
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example 1
[0032] This embodiment takes the preparation of 1000g of silicon boride-enhanced FeMnSi micro-nano powder core wire material for laser additive manufacturing as an example, and prepares 300g of manganese-silicon alloy powder with a particle size of 50-75 microns by mechanical alloying according to the required proportion ( Among them, 270 grams of manganese and 30 grams of silicon), and then disperse 30g of nano-cerium oxide powder (particle size: 30nm) in an alcohol-water mixed solution with a volume ratio of 1:1 to prepare a nano-suspension, and put the two together into a ball mill Medium ball mill compound to obtain such as figure 1 330 g of micro-nano composite powder with a core-shell structure with micron powder as the core and nano-powder as the shell shown. Select 670g of pure iron strip with a width of 10mm and a thickness of 0.5mm, first roll it into a U shape, add the aforementioned micro-nano powder into the U-shaped groove and then close it, and pull it into a fi...
example 2
[0037] This embodiment takes the preparation of 1000g of silicon boride-enhanced FeMnSi micro-nano powder core wire material for laser additive manufacturing as an example, and prepares 280g of manganese-silicon alloy powder with a particle size of 50-75 microns by mechanical alloying according to the required proportion ( Among them, 240.8 grams of manganese and 39.2 grams of silicon), and then disperse 40g of nano-La oxide powder (particle size is 50nm) in the alcohol-water mixed solution with a volume ratio of 1:1 to prepare a nano-suspension, and put the two together into a ball mill Medium ball mill compound to obtain such as figure 1 320g of micro-nano composite powder with a core-shell structure in which the micron powder is the core and the nano powder is the shell. Select 680g of pure iron strip with a width of 10mm and a thickness of 0.5mm, first roll it into a U shape, add the aforementioned micro-nano powder into the U-shaped groove and then close it, and pull it i...
example 3
[0040] This embodiment takes the preparation of 1000g of silicon boride-enhanced FeMnSi micro-nano powder core wire material for laser additive manufacturing as an example, and prepares 360g of manganese-silicon alloy powder with a particle size of 50-75 microns by mechanical alloying according to the required proportion ( Among them, 349.2 grams of manganese, 10.8 grams of silicon), and then disperse 20g of nano Ce oxide powder (also Pr or Nd) (particle size is 80nm) in the alcohol-water mixed solution with a volume ratio of 1:1 to prepare a nano-suspension , put the two together in a ball mill and ball mill compound to obtain such figure 1 380g of micro-nano composite powder with a core-shell structure in which the micron powder is the core and the nano powder is the shell. Select 620g of pure iron strip with a width of 10mm and a thickness of 0.5mm, first roll it into a U shape, add the aforementioned micro-nano powder into the U-shaped groove and then close it, and pull it...
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