Mechanosynthesis of composites in chemically non-reacting and exothermically reacting systems for magnetic abrasive media
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Magnetic abrasive machining is one of the advanced finishing processes that produce a high level of surface quality of any type. The productivity of the finishing process and the quality of the treated surfaces are determined by magnetic and abrasive properties of the working media. To synthesize effective magneto abrasive composites with the size range of 1–100 μm the intensive mechanical treatment of powdered mixtures of chemically inert (Fe:SiC, Fe:B4C and Fe:diamond) and exothermically reacting (Fe2O3:Fe:Me, Me = Al, Zr) systems in high-energy planetary ball mills is performed. It is shown that the formation of composites is the result of intensive processes of grinding and deformation (mechanical alloying) as well as of the mechanically intensified redox reactions (mechanochemical synthesis) leading to the formation of abrasive particles (MexOy) in iron matrix. X-ray diffraction, scanning electron microscopy, Mössbauer spectroscopy and investigations of mechanical properties accompanied by the measurements of the abrasive activity in the finishing process of the surface polishing are used for the characterization of the as-prepared composites. The main parameters and mechanisms of the formation of the optimal structure of composites are revealed. It is demonstrated that the smallest roughness of the machined surface (Ra ~ 1 nm) is achieved in the case of using the mechanically alloyed Fe/diamond composite and the mechanosynthesized Fe/ZrO2 composite.
This work was carried out within the framework of the project BRFFR-RFFR supported by Belarusian Republican Foundation for Fundamental Research (BRFFR Grant No. T15CO-005) and Siberian Branch of Russian Academy of Science (Integration Program—No. 8).
Compliance with ethical standards
Conflict of interest
The authors declared that they have no conflict of interest.
- 1.Khomich MS (2006) Magneto-abrasive treatment of products. Belarusian National Technical University, MinskGoogle Scholar
- 2.Gillespie LK (2006) Mass finishing handbook. Magnetic-abrasive finishing, chapter 20. Industrial Press, New York, pp 371–401Google Scholar
- 4.Baron YM (1975) Tekhnologiya abrazivnoy obrabotki v magnitnom pole [technology of abrasive processing in magnetic field]. Mashinostroyeniye Publ, Leningrad, pp 43–46 (in Russian) Google Scholar
- 6.Feygin S, Kremen G, Igelstyn L (1998) Magnetic-abrasive powder and method of producing the same, US Patent 5846270Google Scholar
- 7.Lomovskiy S (ed) (2010) Mechanocomposites—precursors for materials with new properties. SB RAS, NovosibirskGoogle Scholar
- 10.Kiseleva TYu, Novakova AA, Grigoryeva TF et al (2008) Mechanosynthesis of corundum intermetallics composites. Perspektivnye materialy [Promising Materials] 6:11–20 (in Russian) Google Scholar
- 12.Butyagin PY (1989) Active states in mechanochemical reactions. CRC Press, Boca RatonGoogle Scholar
- 14.Rogachev AS, Moskovskikh DO, Nepapushev AA, Sviridova TA, Vadchenko SG, Rogachev SA, Mukasyan AS (2015) Experimental investigation of milling regimes in planetary ball mill and their influence on structure and reactivity of gasless powder exothermic mixtures. Powder Technol 274:44–52CrossRefGoogle Scholar
- 16.Borunova AB, Zhernovenkova YV, Streletskiy AN, Portnoy VK (1999) Determination of the energy intensity of mechanoactivators of various types. Obrabotka dispersnykh materialov i sred [Processing of Dispersed Materials and Media] 9:158–163 (in Russian) Google Scholar
- 18.Khomich MS (2015) Magnetic abrasive processing of surfaces of responsible products. Nauka i innovatsii [The Science and Innovations] 6:24–26 (in Russian) Google Scholar
- 20.Lovshenko FG, Lovshenko GF (2013) Kompozitsionnyye nanostrukturnyye mekhanicheski legirovannyye poroshki dlya gazotermicheskikh pokrytiy [Nanostructured mechanically alloyed composite powders for gas-thermal coatings]. Belorus-Rus Univ Publ, MogilevGoogle Scholar