Investigation of pecularities of the structure formation for Fe-B-C system alloys in crystallization
Keywords:
boride Fe2B, eutectics, cubic boron carbide Fe23(CB)6 and Fe-B-C system alloy
Abstract
Is show that in the iron-based alloys with weight content of boron from 1,8-3,5 % and with carbon content from 2-2,5 % (w.) after crystallization the morphology of specimen includes primary dendrites of Fe3(CB) phase and plate-like eutectics γ-Fe+Fe3(CB). It is revealed that in the process of Fe-B-C alloys crystallization the formation of cubic boron carbide Fе23(CB)6 takes place as a result of preannealing at the temperature of 1173 K. The formation of Fе23(CB)6 phase occurs on peritectic dissolving of Fe2B boride, whereas eutectics Fе23(CB)6+γ-Fe is formed as a result of four-phase peritectic transformation L+Fe2B→Fе23(CB)6+γ-Fe.
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References
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Yu. B. Kuzma, P. F. Chaban. Boron-bearing binary and ternary systems. Handbook. Moscow: Metallurgy, 1990. –320 p. (in Russian).
G. V. Samsonov, T. I. Serebryakova, V. A. Neronov. Borides. //Moscow: Atomizdat. 1999. – 220 p. (in Russian).
Stadelmaier H.H., Gregy R.A. // Metall. vol. 5. – P. 412-422, 1963.
Koneko J.H., Nichizawa T., Chiba, Nippon Kinzoku Gakkaishi, vol. 30. , 1966. – P. 263-272.
Schiirmann, Li Shao-Xiong // Giesserеi-forschung, t. 37. №4, 1985. – P. 121-129.
Fomichev O. I. , Katkov V. F. Stability range of ternary phase τ in Fe-B-C system // Izv. Vuz. Chernaya metallurgia, №1, 1988. – P. 101-103 (in Russian).
Pilyaeva S. B., Bezrukavaya O. G., Butenko V. F. Pecularities of Fе23(CB)6 compound formation in Fe-B-C alloys // Visnyk Dnipropetrovskoho universytetu. Fizyka. Radioelectronika, Issue 4.
1998. – P. 23-26 (in Russian).
Spiridonova I. M. , Pilyaeva S. B. , Butenko V. F. Investigation of the phase stability in isothermal annealing // The matter of formation of metastable of alloys structure. Interuniversity collection of research papers. Dnipropetrovsk, 1984. – P. 155-162 (in Russian).
S. B. Tverdokhlebova, I. M. Spiridonova, A. M. Bondarenko. Spectrographic analysis of boron-bearing alloys // Zavodskaya laboratoriya. №11, 1990. – P. 46-49 (in Russian).
Published
2017-01-03
How to Cite
Pilyaeva, S. B., & Filonenko, N. Y. (2017). Investigation of pecularities of the structure formation for Fe-B-C system alloys in crystallization. Journal of V. N. Karazin Kharkiv National University. Series Physics, 1135(21), 49-51. Retrieved from https://periodicals.karazin.ua/physics/article/view/7817
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