Home > News > The advantages of titanium carbide coating compared with other coatings

The advantages of titanium carbide coating compared with other coatings

wallpapers News 2020-05-12
Titanium carbide has excellent physical and chemical properties, broad application prospects, and is the right choice for coating materials. Titanium carbide has excellent physical properties of low density, high strength, wear resistance, and unique chemical properties such as oxidation resistance and corrosion resistance, which makes titanium carbide an ideal reinforcement material in the minds of producers. In the world, titanium is rich in resources, easy to obtain, and inexpensive, so titanium carbide has been widely used in metal matrix composites. The metal-based titanium carbide ceramic coating is prepared on the metal surface by laser cladding, which saves materials, the process is simple, the cost is low, the coating hardness is high, and the oxidation resistance and wear resistance are greatly improved, so the laser cladding metal The base titanium carbide ceramic coating has very good application value.

Because titanium carbide has a high melting point and poor wettability with the metal of the bonding phase, general surface treatment methods such as thermal spraying, electroless plating, and vapor deposition are limited by the low equilibrium solubility and poor solid-state diffusivity, or Due to the weak bond between the coating and the substrate, the coating effect is often not very satisfactory. The laser cladding technology with its high energy density generates a very high temperature in the cladding layer instantaneously so that the titanium carbide can be partially melted or dissolved in the metal liquid, which can solve the carbon.

The shortcomings of high melting point and poor wettability of titanium oxide

Compared with other reinforced phases, TiC has higher hardness and thermal stability, smaller thermal expansion coefficient, better toughness, and better wettability with nickel-based, especially titanium-based, and is widely used as a laser cladding coating Strengthening phase. Titanium alloys and aluminum alloys have the advantages of high specific strength, good corrosion resistance, and biocompatibility, and are widely used in aerospace, defense, automotive, medical and other fields, but the high-temperature oxidation resistance, thermal conductivity, and The wear resistance are poor, which greatly limits the titanium alloy in.

Engineering application. A metal-based titanium carbide ceramic coating with high hardness, excellent oxidation resistance and wear resistance is deposited on the surface of the alloy with better mechanical properties, which can significantly increase the range of use of the alloy.

Say something
  • All comments(0)
    No comment yet. Please say something!
Tag: Titanium car