Abstract
Milling of wear-resistant steel and titanium carbide powders is studied with an attrition mill rotation rate of 980 rpm. The physical and technological properties of powders and particle size are determined. Particle shape and the change in material chemical composition during milling are studied. It is established that steel powder cannot be milled to particle sizes less than 3.6 μm whereas a mixture of steel and titanium carbide can be milled to a fine state (0.3 μm). Powders with a size of about 1 μm neither flow nor are formable. Use of benzene as a milling medium makes it possible to prevent steel powder oxidation, but the carbon content in titanium carbide decreases. During milling of the main part of the charge to a fine state rather large steel particles (up to 50 μm) remain.
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Pavlygo, T.M., Plomod'yalo, L.G., Plomod'yalo, R.L. et al. Milling of Carbide-Steel Powder Components and Their Mixtures in an Attrition Mill. Powder Metallurgy and Metal Ceramics 43, 223–228 (2004). https://doi.org/10.1023/B:PMMC.0000042454.39244.8e
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DOI: https://doi.org/10.1023/B:PMMC.0000042454.39244.8e