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Influence of the composition of α-titanium alloys on thermal conductivity
https://doi.org/10.22349/1994-6716-2020-104-4-79-86
Abstract
Among titanium alloys, modern α- and pseudo-α-alloys occupy a special place due to the unique combination of their mechanical properties, corrosion resistance, low density and high specific strength, which determines their effectiveness in various industries. Analysis of structural materials used for heat exchange equipment of nuclear power plants showed that the increase in the efficiency and compactness of tube systems made of a-titanium alloys is constrained by their thermal conductivity characteristic, which does not exceed 89 W/(m·K) at a temperature of 20°C. An exception is the VT1-0 grade alloy, the scope of which is limited to a maximum operating temperature of no more than 250°C. The paper considers the results of studies of a new titanium alloy of the Ti-Zr-Al-O composition with increased thermal conductivity for pipe systems of power equipment.
About the Authors
I. A. Schastlivaya
NRC “Kurchatov Institute” — CRISM “Prometey”
Russian Federation
49 Shpalernaya St, 191015 St Petersburg.
Russian Federation
49 Shpalernaya St, 191015 St Petersburg.
V. P. Leonov
NRC “Kurchatov Institute” — CRISM “Prometey”
Russian Federation
Russian Federation
Dr Sc. (Eng).
49 Shpalernaya St, 191015 St Petersburg.
I. V. Tretyakov
NRC “Kurchatov Institute” — CRISM “Prometey”
Russian Federation
49 Shpalernaya St, 191015 St Petersburg.
Russian Federation
49 Shpalernaya St, 191015 St Petersburg.
A. Yu. Askinazi
NRC “Kurchatov Institute” — CRISM “Prometey”
Russian Federation
49 Shpalernaya St, 191015 St Petersburg.
Russian Federation
49 Shpalernaya St, 191015 St Petersburg.
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Review
For citations:
Schastlivaya I.A., Leonov V.P., Tretyakov I.V., Askinazi A.Yu. Influence of the composition of α-titanium alloys on thermal conductivity. Voprosy Materialovedeniya. 2020;(4(104)):79-86. (In Russ.) https://doi.org/10.22349/1994-6716-2020-104-4-79-86
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