Molten zinc corrosion resistant composite material, preparation method thereof and equipment
A composite material and zinc corrosion technology, applied in the field of cermet materials, can solve the problems of poor corrosion resistance of molten zinc, achieve good corrosion resistance, excellent corrosion resistance of molten zinc, and improve the effect of brittleness
Active Publication Date: 2021-06-04
XIANGTAN UNIV
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Problems solved by technology
The embodiment of the present invention uses FeB as the hard phase, which has good corrosion resistance; W and AlFeNiCoCr are used as the bonding phase to solve the problem of poor molten zinc corrosion resistance of the bonding phase in traditional cermet materials, and improve the corrosion resistance of the material. Resistance to molten zinc corrosion
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preparation example Construction
[0041] see figure 1 , which is a schematic flowchart of a method for preparing a metal-ceramic composite material provided by an embodiment of the present invention. Specifically, the preparation method of the molten zinc corrosion-resistant composite material provided by the embodiment of the present invention includes, for example:
[0042] S11 Mix aluminum powder, iron powder, nickel powder, cobalt powder and chromium powder, and add polyethylene glycol for mechanical alloying to obtain mechanical alloying powder.
[0043] S12 vacuum drying the mechanically alloyed powder to obtain a first dry powder.
[0044] S13 Put the first dry powder into a vacuum sintering furnace for vacuum sintering, grinding and sieving to obtain AlFeNiCoCr high-entropy alloy powder.
[0045] S14 Mix the AlFeNiCoCr high-entropy alloy powder, FeB powder and W powder, add polyethylene glycol, and perform mixed ball milling to obtain a mixed powder.
[0046] S15 vacuum drying the mixed powder to ob...
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Abstract
An embodiment of the invention discloses a molten zinc corrosion resistant composite material, a preparation method thereof and molten zinc corrosion resistant equipment. The composite material comprises the following components in percentages by mass: 68-78% of FeB, 10-20% of W and 12% of AlFeNiCoCr. The AlFeNiCoCr comprises the following components in percentages by mass: 1.96%-2.9% of aluminum powder, 24.06%-48.73% of iron powder, 17.11%-25.35% of nickel powder, 17.11%-25.35% of cobalt powder and 15.09%-22.34% of chromium powder. According to the composite material, FeB serves as a hard phase, and AlFeNiCoCr high-entropy alloy and W serve as binding phases. According to the embodiment of the invention, FeB serves as the hard phase, so that the corrosion resistance is good; the brittleness of boride is improved through the AlFeNiCoCr high-entropy alloy; the wettability between W and Zn is poor; W and Zn do not generate an eutectic reaction at the temperature of 450 DEG C; the problem that the molten zinc corrosion resistance of the binding phases in a traditional metal ceramic material is poor is solved; and accordingly, the molten zinc corrosion resistance of the material is improved.
Description
technical field [0001] The invention belongs to the field of cermet materials, and in particular relates to a composite material resistant to molten zinc corrosion, a preparation method of the composite material resistant to molten zinc corrosion and a device resistant to molten zinc corrosion. Background technique [0002] Hot-dip galvanizing is one of the most cost-effective methods for protecting metal materials such as steel from atmospheric corrosion. Hot-dip galvanized products are widely used in plates, pipes, wires, strips and hardware and electrical parts because of their excellent corrosion resistance, formability and decoration. However, molten zinc is highly corrosive to almost all single metals and most alloys. Corrosion of molten metal has always been a worldwide problem that plagues the galvanizing industry. Especially the equipment or parts immersed in the metal melt are strongly corroded and worn by the metal melt, resulting in frequent replacement of equi...
Claims
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IPC IPC(8): C22C1/05C22C29/00C22C29/14B22F3/10B22F3/105
CPCC22C1/051C22C29/14C22C29/005B22F3/105B22F3/1007B22F2003/1051B22F2999/00B22F2201/20
Inventor 欧阳雪枚谢小龙尹付成尹冰冰王鑫铭叶平
Owner XIANGTAN UNIV