Composite material resistant to molten zinc corrosion and preparation method thereof
A composite material and zinc corrosion technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of poor resistance to molten zinc corrosion, poor wettability, etc., and achieve the effects of easy operation, convenient raw material acquisition, and favorable production and application
Active Publication Date: 2022-03-18
XIANGTAN UNIV
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[0003] Therefore, the embodiment of the present invention provides a composite material resistant to molten zinc corrosion and a preparation method thereof, which uses FeB as the hard phase and has good corrosion resistance; uses Mo and AlFeNiCoCr high-entropy alloy as the bonding phase, and AlFeNiCoCr high-entropy alloy Improve the brittleness of borides, poor wettability between Mo and Zn, and no eutectic reaction with Zn at 450°C to solve the problem of poor molten zinc corrosion resistance of the binder phase in traditional cermet materials, thereby improving the material Excellent resistance to molten zinc corrosion
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[0032] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following embodiments.
[0033]Unless otherwise defined, all technical terms used hereinafter have the same meanings as commonly understood by those skilled in the art. The terminology used herein is only for describing specific embodiments, and is not intended to limit the protection scope of the present invention.
[0034] see Figure 9 , which is a flow chart of a method for preparing a molten zinc corrosion-resistant composite material disclosed in an embodiment of the present invention. Specifically, a preparation method of a molten zinc corrosion-resistant composite material provided by an embodiment of the present invention:
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Abstract
The embodiment of the invention discloses a molten zinc corrosion-resistant composite material and a preparation method thereof. The chemical composition of the composite material provided by the invention is FeB-Mo-AlFeNiCoCr, and its microhardness is positioned at 1405.2HV 0.2 ~1612.5HV 0.2 within range. The preparation method of the composite material comprises the steps of preparation of AlFeNiCoCr high-entropy alloy, preparation of FeB-Mo-AlFeNiCoCr composite powder, preparation of composite material and the like. The embodiment of the present invention uses AlFeNiCoCr high-entropy alloy and Mo as the bonding phase, and FeB as the hard phase, which improves the situation that traditional cermet materials use Co, Ni and other simple substances or alloys as the bonding phase and are easily corroded by molten zinc. Therefore, the corrosion resistance of the material to molten zinc is improved. In addition, the raw material cost of the composite material is low, the preparation method of the composite material is easy to operate, and the equipment used is commonly seen, and has high application value in the zinc industry.
Description
technical field [0001] The invention relates to the technical field of metal corrosion and protection, in particular to a molten zinc corrosion-resistant composite material and a preparation method thereof. Background technique [0002] Hot-dip galvanizing is one of the most economical and effective methods to protect metal materials such as steel from atmospheric corrosion. Hot-dip galvanized products are widely used in plates, tubes, wires, strips and hardware and electrical parts because of their excellent corrosion resistance, formability and decorative properties. 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 components immersed in the metal melt are strongly corroded by the metal melt, resulting in frequent replacement of equipment and decreased production efficiency. This has not only brought huge e...
Claims
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IPC IPC(8): C22C1/04C22C30/00B22F1/00B22F1/14B22F3/105
CPCC22C1/04C22C30/00B22F3/105B22F2003/1051B22F1/14
Inventor 尹冰冰谢小龙尹付成王鑫铭欧阳雪枚胡静娴
Owner XIANGTAN UNIV