Dyuzhechkin M.K., Sergeenko S.N. Special features of effect of grinding media during mechanochemical activation of a mixture on the formation of hot-deformed Al-Si-C powder material

Abstract

This paper studies the effect of grinding media and reduced energy of powder billet hot stamping on the structure and properties of hot-deformed Al-Si-C materials based on mechanochemically activated mixtures. We determined formation of Al9Si solid solution in a nonequilibrium state in the process of mechano-chemical activation of the aluminum-silicon-graphite mixture. This paper suggests an energy-efficient technology for production of a hot-deformed Al-Si-C powder material with increased values of shear strength (192 Mpa) and hardness (262 HV) at a lower value of reduced energy of hot stamping.

Keywords

Mechanochemical activation, hot-deformed powder material, aluminum, silicon, graphite, structure, agglomerate.

Dyuzhechkin Mikhail Konstantinovich – engineer, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Sergeenko Sergei Nikolaevich – Ph.D. (Eng.), Senior Researcher, Deputy Head of the Mechanical Faculty for Re-search, Professor, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia.

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