Abstract
Parameters of Snoek relaxation in binary alloys of iron with Co, Ge, Al, and Si have been studied. The concentration of Al was varied from 1.5 to 16 at. %, and that of Si, from 3 to 10 at. %, in binary (Fe-Al, Fe-Si) and ternary (Fe-Al-Si) alloys. It has been shown that Co and Ge added to α-Fe in amounts to ∼3 at. % only wekaly affect the parameters of the Snoek peak, i.e., the height, width, and shape of the peak, as well as the activation energy for diffusion of carbon atoms. Aluminum and silicon lead to a qualitatively the same effect—a broadening of the Snoek peak on the high-temperature side, which indicates an increase in the activation energy for carbon diffusion and carbon redistribution in iron. The quantitative effects of Al and Si are different. To analyze these effects, a computer analysis of the curves of the temperature dependence of internal friction has been applied.
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References
E. Woodruff, “A Study of the Effects of Temperature upon a Tuning Fork,” Phys. Rev. 16(6), 321–355 (1903).
J. L. Snoek, Physica 6, 591–611 (1939).
J. Snoek, “Effect of Small Quantities of Carbon and Nitrogen on the Elastic and Plastic Properties of Iron,” Physica 8, 711–733 (1941).
C. Wert, “Phenomena Accompanying Precipitation from Solid Solution of C and N in α-Iron”, in Thermodynamics in Physical Metallurgy, Ed. by C. Wert (ASM, Cleveland, 1950); J. Metals 194, 602–603 (1952).
S. A. Golovin, “Snoek Effect in Alloyed Ferrite,” in Thermal Treatment and the Physics of Metals (Ural. Politekh. Inst., Sverdlovsk, 1978), No. 4, pp. 67–72.
M. Koiwa, “Theory of the Snoek Effect in Ternary BCC Alloys,” Philos. Mag. 24, 81–122 (1971).
H. Numakura and M. Koiwa, “The Snoek Relaxation in Dilute Ternary BCC Alloys. A Review,” J. Phys. IV (Paris) 6, 97–106 (1996).
H. S. Saitoh, N. Yoshinaga, and K. Ushioda, “Influence of Substitutional Atoms on the Snoek Peak of Carbon in BCC Iron,” Acta Mater. 52, 1255–1261 (2004).
“The Code for Approximation of the Temperature Dependence of Internal Friction,” Certificate No. 2005611582.
S. A. Golovin, V. A. Semin, and S. S. Goncharov, “Possibilities of Computer Analysis upon Studying the Relaxation Spectrum of Internal Friction in Austenitic Steel,” Izv. Tul. Gos. Univ., Ser. Fiz., No. 5, 199–204 (2005).
M. Weller, J. Phys. (Paris) 46(C10), 711–719 (1985).
I. S. Golovin, S. B. Golovina, Chr. Grusewski, et al., “Analysis of the Decomposition of C-Fe-Al Interstitial Solid Solutions,” Izv. Akad. Nauk, Ser. Fiz. 69(8), 1175–1182 (2005).
I. S. Golovin, M. S. Blanter, T. V. Pozdova, et al., “Effect of Substitutional Ordering on the Carbon Snoek Relaxation in Fe-Al-C Alloys,” Phys. Status Solidi A 168(2), 403–416 (1998).
A. G. Khachaturyan, Theory of Structural Transformation in Solids (Nauka, Moscow, 1974; Wiley, New York, 1983).
T. V. Pozdova and I. S. Golovin, “Mechanical Spectroscopy of Fe-Al-C Alloys Ordering,” Solid State Phenom. 89/90, 279–286 (2003).
A. Strahl, I. S. Golovin, H. Neuhäuser, et al., “Influence of Al Concentration on Parameters of the Short and Long Range Carbon Diffusion in Fe-Al Alloys” (in press).
I. S. Golovin, “Interstitial Distribution in Fe-Al and Fe-Cr Quenched and Aged Alloys: Computer Simulation and Internal Friction Study,” J. Alloys Compd. 310(1–2), 356–362 (2000).
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Original Russian Text © I.S. Golovin, S.B. Golovina, 2006, published in Fizika Metallov i Metallovedenie, 2006, Vol. 102, No. 6, pp. 636–647.
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Golovin, I.S., Golovina, S.B. Effect of alloying α-Fe with aluminum, silicon, cobalt, and germanium on the snoek relaxation parameters. Phys. Metals Metallogr. 102, 593–603 (2006). https://doi.org/10.1134/S0031918X06120064
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DOI: https://doi.org/10.1134/S0031918X06120064