Obrabotka Metallov 2013 No. 2

ОБРАБОТКА МЕТАЛЛОВ № 2 (59) 2013 43 МАТЕРИАЛОВЕДЕНИЕ of nanopowders and their mixtures with coarse powders is developed. The calculations for the coarse tungsten nanopowder with the addition of nickel and tungsten sintering are carried out. Additionally, the sintering of nano- powder tungsten, iron, and mixtures of the coarse and ultrafine powders of iron are calculated. A comparison of simulation results with published data showed the high efficiency of the method proposed by the authors. Keywords: sintering; nanopowders; nanopowders melting temperature; nanopowders sintering temperature. References 1. Chernyshev A.P. Effect of nanoparticle size on the onset temperature of surface melting // Materials Letters, 2009, V. 63, pp. 1525-1527. 2. Matrenin S.V., Il’in A.P., Slosman A.I., Tolbanova L.O. Izvestija TPU , 2008, vol. 313, no. 3, pp. 83-87. 3. Rudskoj A.I. Nanotehnologii v metallurgii (Nanotechnology in the steel industry). St.Peterburg, Nauka, 2007. 186 p. 4. Chernyshev A.P. Effect of hydrostatic pressure on self-diffusion in metal nanoparticles // Physica E, 2009, V. 41, pp. 1738-1740. 5. Geguzin Ja.E. Fizika spekanija (Physics of sintering). Moscow, Nauka, 1984. 312 p. 6. Matrenin S.V., Il’in A.P., Slosman A.I., Tolbanova L.O. Perspektivnye materialy , 2008, no. 4, pp. 81-87.