Abstract
The purpose of the work was to experimentally investigate, simulate, and optimize the crushing methods of foundry alloys. The kinetics of crushing of the Fe-Cr-Al foundry alloy, which was performed in the drum and vibration mills, was investigated. The particle size was determined by two methods, namely, using the optical microscopy and by the specific surface of the powder. In the drum mill, the necessary dispersity of the foundry alloy (average particle size d p = 0.73 µ m) was achieved in the alcohol medium for 75 h. In the vibration mill, the optimal mode is crushing in the argon medium for 18 h (d p = 14 µ m). The vibration mill, compared with the drum one, decreases the preparation time of the foundry alloy by a factor of 1.5–2, which provides a decrease in the product cost.
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Original Russian Text © G.V. Bashkirtsev, 2009, published in Izvestiya VUZ. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya, 2009, No. 2, pp. 50–53.
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Bashkirtsev, G.V. Developing foundry alloy preparation technique for producing highly porous permeable cellular chromal. Russ. J. Non-ferrous Metals 50, 552–555 (2009). https://doi.org/10.3103/S1067821209050228
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DOI: https://doi.org/10.3103/S1067821209050228