What are the important applications of spraying chromium carbide

Release time:

2022-05-23 10:27

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We used to know the wear resistance of thermally sprayed chromium carbide at high temperatures, but in fact chromium is a chemical element with the symbol Cr and the atomic number 24. It is a gray, shiny, hard and brittle metal of steel, with high grinding degree, strong rust resistance and high melting point. Chromium metal because of its high corrosion resistance and hardness, has a high value, as an important compound of chromium element, then, what is the important application of spraying chromium carbide, let's take a look at it!

Chromium carbide is an excellent refractory ceramic material, known for its hardness, which is the same as sprayed tungsten carbide. The chromium carbide powder is manufactured by a sintering process. They appear as coaxial crystals, which are rare structures.

Some other great characteristics of these chromium carbide powders are good corrosion resistance and oxidation resistance even at high temperatures.

Since chromium carbide powder has the same thermal coefficient as steel, its mechanical strength is sufficient to withstand stresses at the boundary layer level.

Therefore, the use of chromium carbide coating is used as a wear-resistant coating:

The coating of chromium carbide is very hard and resistant to high temperature. It is generally used as a wear-resistant coating for important parts that need protection. When used in combination with a protective metal substrate, spraying chromium carbide allows for corrosion and wear resistant coatings.

These chromium carbide coatings can be added by welding or sputtering.

Other applications for chromium carbide include welding rods, cutting tools, chrome substitutes, etc. Due to the high wear resistance of chromium carbide and the high temperature oxidation resistance of Cr2O3 oxide formed on the CR3C2-NiCr two phases, the sprayed chromium carbide coating can withstand high temperature wear. General tungsten carbide coatings have better wear resistance at 510 temperatures, but in order to obtain better wear resistance at higher temperatures, it is necessary to coat chromium carbide coatings that work normally in high temperature environments below 750.

Working at such high temperatures for a long time, sprayed chromium carbide has ductility. During the use of the sprayed chromium carbide coating, there is no carbide precipitation in the nickel-chromium matrix, and the metal matrix maintains toughness. This precipitation of carbides is the main reason for the embrittlement and failure of HVOF spraying at high temperatures. Other applications of chromium carbide include welding rods, cutting tools, chrome plating substitutes, etc.

Due to the high wear resistance of chromium carbide and the high temperature oxidation resistance of Cr2O3 oxide formed on the CR3C2-NiCr two phases, the sprayed chromium carbide coating can withstand high temperature wear.

General tungsten carbide coatings have better wear resistance at 510 temperatures, but in order to obtain better wear resistance at higher temperatures, it is necessary to coat chromium carbide coatings that work normally in high temperature environments below 750.

Working at such high temperatures for a long time, sprayed chromium carbide has ductility. During the use of the sprayed chromium carbide coating, there is no carbide precipitation in the nickel-chromium matrix, and the metal matrix maintains toughness. This precipitation of carbides is the main cause of embrittlement and failure of HVOF spray in high temperature use.

The above is what is the important application of spraying chromium carbide, if you need to know more, please feel free to contact us!