Cemented carbide is an alloy material composed of hard metals (such as cobalt, tungsten, chromium, titanium, etc.) and carbides (such as titanium carbide, tungsten carbide, etc.). Its mechanical properties are very excellent, with high hardness, high strength, high wear resistance and high corrosion resistance.
In cemented carbide, the hardness of carbide particles is very high, and they are evenly distributed on the hard metal matrix to form a unique cemented carbide structure. This structure can effectively improve the hardness and wear resistance of cemented carbide. At the same time, the hard metal in cemented carbide has good toughness and impact resistance, making the cemented carbide less likely to break when impacted.
The strength of cemented carbide mainly depends on its composition and structure. Generally speaking, the higher the cobalt content in a cemented carbide, the stronger it will be. At the same time, carbide type and grain size will also affect the strength of cemented carbide. For example, in WC-TiC-Co alloy, as the TiC content increases, the flexural strength of the alloy decreases. The flexural strength of coarse-grained carbide is higher than that of medium-grained carbide.
Carbide has good high temperature stability, its hardness can reach HRA87~93 at room temperature, and its hardness can still remain above HRA70 at high temperatures. At the same time, cemented carbide also has good impact resistance and corrosion resistance, and can maintain excellent working performance under various harsh working conditions.
In general, cemented carbide is a material with excellent mechanical properties, good high temperature stability, good impact resistance and corrosion resistance. It is widely used in various high strength, high wear resistance and high corrosion resistance application scenarios.
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