Crystallization of Ultra-fine Tungsten Carbide Button

With the requirement of rock drilling higher and higher, which means that it should has good toughness against impact and high abrasive resistance. And the use of crystallization of ultra-fine structure can obviously improve the performance of tungsten carbide ball button. There is research data shows that carbide binder phase content unchanged, while WC grain size of less than 1μm, alloy hardness and strength of will get obviously improved. What’s more, with the size of WC grain reduced further, the promotion will be more visible.

As the particle has small size, large surface area, and surface strong reactivity, which makes it certain specific properties will be able to simultaneously increase the strength and hardness of tungsten carbide button. Therefore, many of the scholars or researchers study set the goals and directions on the refinement of carbide grains to nanometer so that both of hardness and strength can be enhanced. It can extend the working life of tungsten carbide button and decrease the cost of production.

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