Growth of (αTi) grain boundary layers in Ti–Co alloys
https://doi.org/10.17073/0021-3438-2016-5-69-77
Abstract
The paper studies the effect of temperature on the formation of (αTi) grain boundary layer in Ti–2wt.%Co and Ti–4wt.%Co alloys in the (αTi) + (βTi) two-phase region of the Ti–Co phase diagram within the temperature range of 690–810 °C. The paper studies kinetics of thickness growth (∆) of the (αTi) phase grain boundary layer in Ti–2wt.%Co alloy at a temperature of 750 °C. It demonstrates dependence of the thickness of grain boundary layer on the annealing time as ∆ ~ t 1/3. Analysis of experimental results suggests that increase in ∆ is a manifestation of the (αTi) coalescence process controlled by volume diffusion.
About the Authors
A. S. Gornakova
Institute of Solid State Physics of Russian Academy of Sciences (ISSP RAS) (142432, Russia, Moscow Region, Chernogolovka, Acad. Osip’yan str., 2).
Russian Federation
Cand. Sci. (Phys.-Math.), senior research associate, Laboratory of interfaces in metals, ISSP RAS
Russian Federation
Cand. Sci. (Phys.-Math.), senior research associate, Laboratory of interfaces in metals, ISSP RAS
S. I. Prokofjev
Institute of Solid State Physics of Russian Academy of Sciences (ISSP RAS) (142432, Russia, Moscow Region, Chernogolovka, Acad. Osip’yan str., 2).
Russian Federation
Cand. Sci. (Phys.-Math.), senior research associate, ISSP RAS
Russian Federation
Cand. Sci. (Phys.-Math.), senior research associate, ISSP RAS
B. B. Straumal
Institute of Solid State Physics of Russian Academy of Sciences (ISSP RAS) (142432, Russia, Moscow Region, Chernogolovka, Acad. Osip’yan str., 2).
National University of Science and Technology (NUST) «MISIS» (119049, Russia, Moscow, Leninskii pr., 4)
Russian Federation
Dr. Sci. (Phys.-Math.), prof. of the Department of physical chemistry, leading researcher of the Laboratory of hybrid nanomaterials of National University of Science and Technology (NUST) «MISIS», head of the Laboratory of interfaces in metals of the ISSP RAS.
Russian Federation
Dr. Sci. (Phys.-Math.), prof. of the Department of physical chemistry, leading researcher of the Laboratory of hybrid nanomaterials of National University of Science and Technology (NUST) «MISIS», head of the Laboratory of interfaces in metals of the ISSP RAS.
K. I. Kolesnikova
National University of Science and Technology (NUST) «MISIS» (119049, Russia, Moscow, Leninskii pr., 4)
Russian Federation
postgraduate student, Department of physical chemistry of NUST «MISIS».
Russian Federation
postgraduate student, Department of physical chemistry of NUST «MISIS».
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Review
For citations:
Gornakova A.S., Prokofjev S.I., Straumal B.B., Kolesnikova K.I. Growth of (αTi) grain boundary layers in Ti–Co alloys. Izvestiya. Non-Ferrous Metallurgy. 2016;(5):69-77. (In Russ.) https://doi.org/10.17073/0021-3438-2016-5-69-77
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