Actual Problems in Machine Building 2016 No. 3

Актуальные проблемы в машиностроении. 2016. №3 Материаловедение в машиностроении ____________________________________________________________________ 403 7. Radiation- and thermally-induced phosphorus inter-granular segregation in pressure vessev steels / Z. Lu, F.G. Faulkner, R.B. Jones, P.E.J. Flewitt // Journal of ASTM International. – 2005. – Vol. 2, N 8. – P. 180–194. 8. Мамонтов А.П., Чернов И.П . Эффект малых доз ионизирующего излучения. – Томск: Дельтаплан, 2009. – 288 с. 9. Meyers M.A., Mishra A., Benson D.J . Mechanical properties of nanocrystalline materials // Progress in Materials Science. – 2006. – Vol. 51. – P. 427–556. 10. Production of submicrocrystalline structure in large- scale Ti-6Al-4V billet by warm severe deformation processing / S.V. Zherebtsov et al. // Scripta Materialia. – 2004. – Vol. 51. – P. 1147–1151. 11. Effect of composition on mechanical properties of newly developed Ti2AlNb-based titanium aluminide / L. Germann, D. Banerjee, J.Y. Guedou, J.-L. Strudel // Intermetallics. – 2005. – Vol. 13. – P. 920–924. 12. Microwave-assisted combustion synthesis in mechanically activated 3Ti + Al powder mixtures: structure formation issues / V.Yu. Filimonov, A.A. Sitnikov, A.V. Afanas’ev, M.V. Loginova, V.I. Yakovlev, A.Z. Negodyaev, D.V. Schreifer, V.A. Solov’ev // International Journal of Self Propagating High Temperature Synthesis. – 2014. – Vol. 23, N 1. – P. 18–25. 13. The features of structure formation in mechanically activated powder mixture 3Ti+Al in the thermal explosion mode / V.Yu. Filimonov, A.A. Sitnikov, V.I. Yakovlev, M.V. Loginova, A.V. Afanas’ev, A.Z. Negodyaev // Applied Mechanics and Materials. – 2014. – Vol. 621. – P. 71–76. STRUCTURAL TRANSFORMATIONS IN MECHANICALLY ACTIVATED POWDER MIXTURES TI + AL UNDER THE INFLUENCE OF Γ-IRRADIATION Loginova M. V. 1 , Ph.D. (Engineering), Senior Researcher, e-mail: anicpt@rambler.ru Yakovlev V. I. 1 , Ph.D. (Engineering), Associate Professor, e-mail: anicpt@rambler.ru Sitnikov A. A. 1 , D.Sc. (Engineering), Professor, e-mail: anicpt@rambler.ru Filimonov V. Yu. 1 , D.Sc. (Physics and Mathematics), Professor, e-mail: anicpt@rambler.ru Sobachkin A. V. 1 , Ph.D. (Engineering), Senior Researcher, e-mail: anicpt@rambler.ru Negodyaev A. Z. 1 , Ph.D. student, e-mail: anicpt@rambler.ru Gradoboev A. V. 2 , D.Sc. (Engineering), Professor, e-mail: anicpt@rambler.ru 1 I.I. Polzunov Altai State Technical University, 46 Lenina avenue, Barnaul, Altai region, 656038, Russian Federation 2 National Research Tomsk Polytechnic University, 30 Lenina avenue, Tomsk, 634050, Russian Federation Abstract It is investigated the influence of mechanical activation on structural-phase state of the components of the powder mixture composition of the Ti + Al under the influence of different doses of gamma- irradiation. It was found that the change of the mode of γ-irradiation transforms the structural condition of mechanically activated powder mixtures. It is discovered that by increasing doses of γ- irradiation in a mechanically activated powder mixture takes place preferment of crystallinity of the both components, parameters of the crystal lattices Ti and Al approximate to original size. In the process of γ-irradiation decreases the internal stress while preserving the nano crystalline structure. Keywords titanium, aluminum, powder mixture, mechanical activation, γ-rays, X-ray diffraction, structural parameters, lattice, crystallites microtension