Why does chromium carbide have hardness

What is chromium carbide?

Chromium carbide ( Cr3C2) is grey powder with metal gloss; Orthorhombic system; The thickness is 6.68 g/cm3; The melting factor is 1890 ℃ and the boiling factor is 3800 ℃. It has excellent wear resistance, corrosion resistance as well as oxidation resistance at high temperature (1000 ~ 1100 ℃). Coming from a cermet.

Especially chromium carbide has several exceptional properties, such as solid chemical security, high firmness at room temperature and also thermal hardness, good resistance to acid and alkali corrosion, good wear resistance, high melting factor, and also great wettability with metals such as and also. In the steel carbide, the oxidation resistance of zui is high, and also the oxidation temperature level is as high as. When chromium is used as an inhibitor, the grain growth of cemented carbide can be properly controlled. In addition, chromium carbide is not just an additive of explosive bonding product with great wear resistance and a high-grade cermet resources. It can also be utilized as splashing powder. As an example, splashing powder has good rust, oxidation, and also put on resistance at high temperatures. As a result of its excellent features, chromium carbide has been widely utilized in the metallurgical sector, digital sector, high-temperature resistant layer, aerospace, and other fields.

Chromium carbide has high solidity, high melting factor, high flexible modulus, chemical corrosion resistance, as well as wear resistance and also has come to be one of the widely used metal carbides. In cutting tools, chromium carbide powder generally plays an essential duty as a surface area covering. In Fe-Cr-C alloy, chromium carbide is a critical precipitation stage, providing the product outstanding wear resistance. Chromium is a critical wear-resistant stage, while solidity, as a significant mechanical specification in the layout of wear-resistant products, has yet to get a relatively precise outcome.

Chromium carbide (CnC) has a reduced solidity of 1710 as well as a density of 6.68 g. m), a thermal growth coefficient of 10.3 x 10 ~ K (20-100) and also a thermal conductivity of 19.1 W.m-+. K-1. Its major qualities are that the carbide has a high room temperature, thermal solidity, and excellent wettability with metals such as CoNi. It is used in steel mold substances.

Producing chromium carbide by a mix of aluminothermic reduction as well as vacuum cleaner furnacing at temperature levels of 1500°& deg; C and over. A blend of chromium steel, chromium oxide as well as carbon is prepared and also then loaded right into a vacuum heating system. The pressure in the furnace is minimized as well as the temperature level raised to 1500°& deg; C. The carbon reacts with the chromium oxide to develop chromium metal as well as carbon monoxide gas, which is drained right into the air pump. The chromium steel then incorporates with the remaining carbon to create the chromium carbide

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