Актуальные проблемы в машиностроении. 2016. №3

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Актуальные проблемы в машиностроении. 2016. №3 Материаловедение
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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:
Yakovlev V. I. 1, Ph.D. (Engineering), Associate Professor, e-mail:
Sitnikov A. A. 1, (Engineering), Professor, e-mail:
Filimonov V. Yu. 1, (Physics and Mathematics), Professor, e-mail:
Sobachkin A. V. 1, Ph.D. (Engineering), Senior Researcher, e-mail:
Negodyaev A. Z. 1, Ph.D. student, e-mail:
Gradoboev A. V. 2, (Engineering), Professor, e-mail:
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