Why tungsten carbide material strengthness stronger than other material ?
Tungsten carbide is an alloy material made from hard compound of refractory metal and bonding metal through powder metallurgy process. The matrix of tungsten carbide consists of two parts: one part is the hardening phase; the other part is the bonding metal. The hardened phase is carbide, such as tungsten carbide, titanium carbide, and tantalum carbide. They have high hardness, but also have high brittleness and low strength. The bonding metals are generally cobalt and nickel, and there are also steel-bonded tungsten carbides, which have low hardness and plasticity. Relatively speaking, the strength is not high, but the combination of the two has complementary properties. The plasticity of the bonding metal can offset the brittleness of the hardened phase, while the hardness is not reduced much, especially after sintering, the hardened phase and the adhesive The junction metal forms a eutectic alloy. After cooling, the hardened phases are distributed in the grid composed of the bonding metal and are closely connected with each other to form a solid whole part . The hardness of tungsten carbide depends on the hardened phase content and grain size, that is, the higher the hardened phase content and the finer the grains, the greater the hardness. The toughness of tungsten carbide is determined by the binder metal, and the higher the binder metal content, the flexural strength is stronger. Then those combined results in stronger strengthness.
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We,Zhuzhou Applecarbide tools co.,ltd is a professional manufacture for tungsten carbide cutting tools in China ,widely use in metal working and wood working ,any interesting ,welcome to contact us for more details ,thanks!
Related search keywords:
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