The use of chromium carbide large point! Please click!
Release time:
2023-01-03 13:06
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Chromium carbide (Cr3C2) has a low melting point of 1710 radix and a density of 6.68g.cm-3. Its main characteristics are high normal temperature hardness and hot hardness, good wettability with Co, Ni and other metals, high oxidation resistance in metal carbide, severe oxidation in air at 1100 radix to 1400 radix, and excellent corrosion resistance. It is a high temperature oxidation resistance, friction and wear resistance and gas erosion resistance material with excellent comprehensive performance. Mainly used in high temperature resistant coating, but direct spraying chromium carbide coating, adhesion is not strong. Therefore, it is mainly used as the main raw material component for the preparation of NiCr-Cr3C2 composite powder.
What is the use of chromium carbide? Let's take a look.
1. It is a high melting point material with good wear resistance, corrosion resistance and oxidation resistance in high temperature environment. Cemented carbide particles made of nickel chromium alloy can be used as high temperature resistance, wear resistance, oxidation resistance and acid resistance coating, widely used in aircraft engines and petrochemical machinery components, which can greatly improve the life of the machine. It is also commonly used as a grain refiner for cemented carbide and other wear-resistant and corrosion-resistant components. The cermets based on Cr3C2 have excellent oxidation resistance at high temperature.
2. Used for chromium carbide ceramics. Coarse-grained chromium carbide as a meltblown material to form a meltblown film on the surface of metals and ceramics, giving the latter wear resistance, heat resistance, corrosion resistance and other properties, widely used in aircraft engines and petrochemical machinery devices, to greatly improve the mechanical life. Also used for spraying semiconductor films.
What are the physical and chemical properties of chromium carbide? Let's take a look.
Chromium carbide (Cr3C2) is a gray powder with metallic luster; orthorhombic system; density of 6.68g/cm3; melting point of 1890 ℃, boiling point of 3800 ℃; in high temperature environment (1000~1100 ℃) has good wear resistance, corrosion resistance, oxidation resistance. It belongs to a kind of metal ceramic.
Chromium carbide especially has many excellent properties, such as strong chemical stability, room temperature hardness and thermal hardness are very high, acid and alkali corrosion resistance, good wear resistance, high melting point, and other metal wettability is good. In the metal type carbide, the oxidation resistance is high, and the oxidation temperature is as high. When chromium carbide is used as an inhibitor, it can effectively control the grain growth of cemented carbide.
Moreover, chromium carbide is not only a kind of good wear resistance of the explosive material additive, but also a good metal ceramic raw material, can also be used as spraying powder, such as spraying powder at high temperature has good corrosion resistance, oxidation resistance and wear resistance. Due to the excellent characteristics of chromium carbide, it has been widely used in metallurgical industry, electronic industry, high temperature resistant coating, aerospace and other fields.
Chromium carbide has high hardness, high melting point, high elastic modulus, chemical corrosion resistance and wear resistance and other excellent properties, has become one of the widely used metal carbides. In the field of cutting tools, chromium carbide usually plays an important role as a surface coating; in Fe-Cr-C alloys, chromium carbide is an important precipitated phase, which makes the material have excellent wear resistance.
Chromium carbide
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