Low Price Molybdenum Powder for Cemented Carbide

   

Molybdenum powder

Content: Mo: 60% - 70%; particle size: -60mesh -80mesh-200mesh - ultra fine.
Ferromolybdenum alloy can increase the wear resistance of alloy products and is widely used in welding materials, powder metallurgy and other industries.

Incorporating molybdenum into iron-based powder metallurgy materials enhances both strength and hardness, enabling performance under demanding stress conditions. This enhancement stems from molybdenum’s influence on the material’s internal structure during sintering. By shifting the s-point on the iron-carbon phase diagram, the carbon concentration in pearlite is reduced, leading to a transformation in carbide dispersion and shape—favoring granular bainite formation. When combined with elements like chromium or nickel, the microstructure tends to develop acicular bainite, significantly boosting mechanical properties. During subsequent heat treatment phases, molybdenum contributes to better hardenability and superior resistance to wear. Molybdenum is recognized as a highly effective additive in powder metallurgy. However, using pure molybdenum powder leads to suboptimal results due to its extremely high melting point (2600 °C), large atomic size, and coarse particle structure. These characteristics promote mixing inhomogeneity and hinder diffusion during sintering, causing microstructural inconsistencies that impair final heat treatment outcomes. Moreover, pure molybdenum powder is costly, making its direct use as an additive economically impractical.
Ferromolybdenum alloy, produced through high-temperature melting, exhibits complete mixing, a low melting threshold, and minimal chemical inhomogeneity. During sintering, its powder disperses uniformly and integrates readily, resulting in a consistent, fine-grained final product. Incorporating this alloy also leads to cost savings in manufacturing. Practical results indicate the final material achieves a density marginally above that of pure molybdenum powder