In the cemented carbide, our most commonly used three functions of tantalum and niobium is to inhibit grain growth, improve alloy red hardness and fatigue resistance. We must understand that the characteristics of the tantalum and niobium comparison, is basically a comparison of the two elements. Since the amount of alloy in the addition is not a lot, so to get the same quality of the alloy, you can change from the amount of tantalum and niobium obtained. However, due to the atomic weight of tantalum and niobium and the crystallization temperature of the two different, therefore, in the alloy production must be comprehensive and balanced production process in order to obtain the desired product quality.

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