Why does chromium carbide have hardness

What is chromium carbide?

Chromium carbide ( Cr3C2) is grey powder with metallic gloss; Orthorhombic system; The thickness is 6.68 g/cm3; The melting point is 1890 ℃ as well as the boiling point is 3800 ℃. It has good wear resistance, deterioration resistance and also oxidation resistance at heat (1000 ~ 1100 ℃). Coming from a cermet.

Specifically chromium carbide has numerous excellent residential properties, such as solid chemical stability, high firmness at room temperature level and also thermal solidity, excellent resistance to acid and also alkali corrosion, excellent wear resistance, high melting point, as well as great wettability with metals such as and. In the metal carbide, the oxidation resistance of zui is high, as well as the oxidation temperature level is as high as. When chromium is utilized as a prevention, the grain development of concrete carbide can be properly managed. In addition, chromium carbide is not just an additive of eruptive bonding product with great wear resistance and a high-quality cermet basic material. It can likewise be utilized as splashing powder. For example, splashing powder has great rust, oxidation, and also put on resistance at heats. Due to its excellent features, chromium carbide has been widely used in the metallurgical market, digital sector, high-temperature immune finishing, aerospace, and also various other fields.

Chromium carbide has high hardness, high melting point, high elastic modulus, chemical rust resistance, and use resistance and also has ended up being one of the commonly made use of steel carbides. In cutting devices, chromium carbide powder usually plays a crucial role as a surface area coating. In Fe-Cr-C alloy, chromium carbide is a vital rainfall phase, giving the product excellent wear resistance. Chromium is a critical wear-resistant stage, while solidity, as a substantial mechanical parameter in the style of wear-resistant materials, has yet to obtain a relatively exact result.

Chromium carbide (CnC) has a low hardness of 1710 and a thickness of 6.68 g. m), a thermal expansion coefficient of 10.3 x 10 ~ K (20-100) and a thermal conductivity of 19.1 W.m-+. K-1. Its major characteristics are that the carbide has a high room temperature, thermal solidity, as well as good wettability with metals such as CoNi. It is made use of in metal mold compounds.

Producing chromium carbide by a mix of aluminothermic decrease as well as vacuum cleaner furnacing at temperatures of 1500°& deg; C as well as over. A blend of chromium metal, chromium oxide as well as carbon is prepared as well as then packed into a vacuum furnace. The stress in the heater is decreased as well as the temperature increased to 1500°& deg; C. The carbon responds with the chromium oxide to create chromium metal and also carbon monoxide gas, which is attracted off right into the air pump. The chromium steel then incorporates with the staying carbon to develop the chromium carbide

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