Mechanosynthesis of Composite Fe/SiC Powders for Magnetic Abrasive Treatment

Authors :: Petr A. Vityaz
Victor I. Zhornik
Svetlana A. Kovaleva
Nikolay S. Khomich
Tatyana F. Grigoreva
Source :: Механика машин, механизмов и материалов, Iss 1(34), Pp 52-57 (2016)
Publication Year :: 2016
Publisher :: National Academy of Sciences of Belarus, State Scientific Institution “The Joint Institute of Mechanical Engineering", 2016.
Abstract: The results of investigation of structure evolution of powder composition of Fe/SiC during mechanical activation (MA) are described. It is shown that the mechono-composite Fe/SiC is formed by treatment of the composition of Fe/SiC powders in the mill with energy intensity of I = 3 W/g during a short time. The main stages of microstructure formation of the composite Fe/SiC powders include crushing, deformation mixing, submicrostructure fragmentation of components and forming of globular microstructure. The alignment of the phase composition and size range of the particles of mechano-composites Fe/SiC and SiC inclusions takes place during 60 minutes of the MA. The SiC particle size is decreased from 40–180 microns to 0,3–2 microns. The formation of the Fe/SiC composite by MA during 60 minutes occurs without significant interaction between the components.