Abstract
The results are given of measurements of the integral emissivity of alloys on the basis of titanium alloyed with aluminum and vanadium. The behavior of the polytherm of emissivity in the neighborhood of polymorphous transformation is treated, as well as the temperature dependence of emissivity in the region of the β-phase. The method of electronic heating under conditions of oilless vacuum is used to investigate the temperature-related features of the emissivity of titanium alloys in the temperature range from 1100 to 1700 K. The effect of the concentration of aluminum and vanadium on the emissivity of titanium is discussed. It is demonstrated that the presence of aluminum as an alloying element which stabilizes the α-phase extends the temperature range of polymorphous transformation and increases the absolute values of integral hemispherical emissivity. On the contrary, the presence of vanadium as the stabilizer of the β-phase "narrows down" the temperature range of polymorphous transformation and causes a decrease in the temperature in this range. Approximating equations are given for all of the investigated alloys in the region of the β-phase. The obtained results are compared with the available data. The limiting relative experimental error is estimated at 2.5%.
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REFERENCES
Brasel, J. and Gorsuch, P., Emittance Studies of Ti-6Al-4V Alloy, Proc. 7th Symp. of Thermophysical Properties, New York, 1977, p. 567.
Cezairliyan, A., Mclure, J.L., and Taylor, R., J. Res. Nat. Bur. Stand. Sect. A, 1977, vol. 81a, nos. 2-3, p. 1246.
Shur, B.A. and Peletskii, V.E., Teplofiz. Vys. Temp., 1981, vol. 19, no. 6, p. 1172.
Shur, B.A., Emission Characteristics and Electrical Resistivity of Titanium and Its Alloys, Cand. Sci. (Tech.) Dissertation, Moscow: Inst. of High Temperatures, USSR Acad. Sci., 1981.
Glazunov, S.G. and Kolachev, B.A., Metallovedenie titana i ego splavov (Metal Science Studies of Titanium and Its Alloys), Moscow: Metallurgiya, 1992.
Zwicker, U., Titan und Titanlegierungen, Berlin: Springer, 1974. Translated under the title Titan i ego splavy, Moscow: Metallurgiya, 1979.
Peletskii, V.E. and Shur, B.A., izmer. Tekh, 1977, no. 10, p. 61.
Timrot, D.L. and Peletskii, V.E., Teplofiz. Vys. Temp., 1963, vol. 1, no. 2, p. 24.
Listovnichii, V.E., Inzh. Fiz. Zh., 1964, no. 11, p. 119.
Peletskii, V.E., Poroshk. Metall, 1967, no. 7, p. 100.
Lainer, D.I. and Bai, A.S., Metally, 1973, no. 4, p. 99.
Lokshin, E.L., Bochvar, G.A., and Borzetsovskaya, K.M., Poroshk. Metall., 1979, no. 12, p. 1.
Grosley, F.A., Trans. AIME, 1966, no. 236, p. 1174.
Touloukian, Y.S., Thermophysical Properties of High Temperature Solid Materials, New York: IFI, 1970, vol. 8.
Peletskii, V.E., Amasovich, E.S., Bel'skaya, E.A., et al., Integrated Studies into the Thermophysical properties of Commercial Titanium, in Teplofizicheskie svoistva veshchestv pri vysokikh temperaturakh (The Thermophysical Properties of Materials at High Temperatures), Moscow: IVTAN (Inst. of High Temperatures, USSR Acad. Sci.), 1978, p. 143.
Shur, B.A. and Peletskii, V.E., Titan. Integral'naya polusfericheskaya izluchatel'naya sposobnost' titana v diapazone temperature 1100-1900 K. Tablitsy RSD no. 56-83 (Titanium. Integral Hemispherical Emissivity of Titanium in the Temperature Range from 1100 to 1900 K. Tables of Recommended Reference Data no. 56-83), Moscow, 1983.
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Shur, B.A., Peletskii, V.E. The Effect of Alloying Additions on the Emissivity of Titanium in the Neighborhood of Polymorphous Transformation. High Temperature 42, 414–420 (2004). https://doi.org/10.1023/B:HITE.0000033878.03086.62
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DOI: https://doi.org/10.1023/B:HITE.0000033878.03086.62