Tungsten Carbide Nozzle Grain Growth Suppression III

The most common grain growth inhibitors are VC, Cr₃C₂, TaC, TiC, NbC and so on. The inhibitor in the liquid binder phase solubility depends on the chemical stability of the carbide, which has low chemical stability in the binder phase exhibits a high saturation concentration. And the inhibitor effects depend on the solubility of the binder phase itself. Generally, the lower chemical stability of grain inhibitors higher solubility in the binder phase, the inhibitory effect is more obvious. In addition, the eutectic temperature of inhibitor and Co Inhibitor thinning effect is also the main factors of the inhibitor refinement, the lower Co eutectic temperature, the higher solubility in the adhesive phase, the effect of suppressing is better.












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