A kind of iron-based amorphous/alumina ceramic composite powder and its preparation method and application
A kind of technology of alumina ceramics and iron-based amorphous, which is applied in the direction of coating, molten spraying, metal material coating technology, etc., can solve the problems of poor wear resistance and high preparation cost, achieve excellent wear resistance, improve Glass forming ability and effect of low porosity
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Embodiment 1
[0032] An iron-based amorphous / alumina ceramic composite powder, the preparation method comprising the following steps:
[0033] Step 1: Weigh 75.8 parts of low-carbon ferrochrome, 8.5 parts of high-carbon ferrochrome, 3.7 parts of cobalt, 5.1 parts of electrolytic nickel, 19.2 parts of ferro-niobium, 9.9 parts of ferrosilicon, 40.7 parts of ferro-molybdenum, 9.2 parts of boron iron, 7.6 parts of boron carbide, 10.8 parts of iron, 6.8 parts of nano-sized alumina particles;
[0034] Step 2: Add low-carbon ferrochrome, high-carbon ferrochrome, cobalt, electrolytic nickel, ferro-niobium, ferrosilicon, ferro-molybdenum, ferro-boron, boron carbide and iron into the induction induction cooker, heat to 2250 ℃ to melt all the materials, and induce The heating rate of the induction cooker is 60-80°C / min;
[0035] Step 3: Cool the completely melted molten metal at a cooling rate of 400-600°C / h, add half of the nano-sized alumina particles when the temperature of the molten metal drops ...
Embodiment 2
[0046] An iron-based amorphous / alumina ceramic composite powder, the preparation method comprising the following steps:
[0047] Step 1: Weigh 75.8 parts of low-carbon ferrochrome, 8.5 parts of high-carbon ferrochrome, 3.7 parts of cobalt, 5.1 parts of electrolytic nickel, 19.2 parts of ferro-niobium, 9.9 parts of ferrosilicon, 40.7 parts of ferro-molybdenum, 9.2 parts of boron iron, 7.6 parts of boron carbide, 10.8 parts of iron, 6.1 parts of nano-sized alumina particles;
[0048] Step 2: Add low-carbon ferrochrome, high-carbon ferrochrome, cobalt, electrolytic nickel, ferro-niobium, ferrosilicon, ferro-molybdenum, ferro-boron, boron carbide and iron into the induction induction cooker, heat to 2250 ℃ to melt all the materials, and induce The heating rate of the induction cooker is 60-80°C / min;
[0049] Step 3: Cool the completely melted molten metal at a cooling rate of 400-600°C / h, add half of the nano-sized alumina particles when the temperature of the molten metal drops ...
Embodiment 3
[0058] An iron-based amorphous / alumina ceramic composite powder, the preparation method comprising the following steps:
[0059] Step 1: Weigh 75.8 parts of low-carbon ferrochrome, 8.5 parts of high-carbon ferrochrome, 3.7 parts of cobalt, 5.1 parts of electrolytic nickel, 19.2 parts of ferro-niobium, 9.9 parts of ferrosilicon, 40.7 parts of ferro-molybdenum, 9.2 parts of boron iron, 7.6 parts of boron carbide, 10.8 parts of iron, 8.1 parts of nano-sized alumina particles;
[0060] Step 2: Add low-carbon ferrochrome, high-carbon ferrochrome, cobalt, electrolytic nickel, ferro-niobium, ferrosilicon, ferro-molybdenum, ferro-boron, boron carbide and iron into the induction induction cooker, heat to 2250 ℃ to melt all the materials, and induce The heating rate of the induction cooker is 60-80°C / min;
[0061] Step 3: Cool the completely melted molten metal at a cooling rate of 400-600°C / h, add half of the nano-sized alumina particles when the temperature of the molten metal drops ...
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