Abstract
Torsion tests were conducted to study the static recrystallization of three microalloyed steels manufactured by electroslag remelting (ESR) with different percentages of vanadium, 0.043%. 0.060% and 0.095%, respectively, and approximately equal percentages of the other alloyforming elements. It was seen that, in contrast to niobium, dissolved vanadium has no influence on the activation energy. The influence only becomes notable when the precipitates start to form and the activation energy increases rapidly, thus inhibiting recrystallization. The critical temperature at which inhibition commences was measured as a function of the vanadium content and the deformation performed, and in all cases it was lower than the dissolution temperature deduced from the solubility products for nitrides, mainly because the testing conditions lacked thermodynamic equilibrium. Finally, a comparison was made of the microstructures obtained in two commercial steels, namely a C-Mn type steel and a vanadium microalloyed steel. Both were subjected to the same cycle of successive deformations, whose temperatures were lower than the critical temperature. After the last deformation, a much harder austenite was obtained in the microalloyed steel than in the C-Mn steel.
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References
C. M. Sellars, in “Hot working and forming processes” (The Metals Society, London, 1980) p. 3.
Idem., Mater. Sci. Eng. 6 (1990) 1072.
P. Choquet, B. Lamberterie, C. Perdrix andH. Biausser, in Proceedings of the 4th International Steel Rolling Conference, Deauville, France (IRSID, 1987) p. B.5.1.
P. Choquet, A. Le Bon andC. Perdrix, in Proceedings of the 7th International Conference on Strength of Metals and Alloys, Montreal, August 1985, edited by H. J. McQueen, J. B. Bailon, J. I. Dickson, J. J. Jonas and M. G. Akben, (Pergamon Press, Canada, 1985) p. 1025.
A. Laarasqui andJ. J. Jonas,ISIJ Internat. 31 (1991) 95.
H. L. Andrade, M. G. Akben andJ. J. Jonas,Met. Trans.,14A (1983) 1967.
J. R. Everett, A. Gittins, G. Glover andM. Toyama, in “Hot working and forming processes” (The Metals Society, London, 1980) p. 16.
S. Yamamoto, S. Ouchi andT. Osuka, in Proceedings of the International Conference on Thermomechanical Processing of Microalloyed Austenite, Pittsburg, August 1981, edited by A. J. De Ardo, G. A. Ratz and P. J. Wray, (The Metallurgical Society of AIME, Pennsylvania, 1982) p. 613.
R. K. Amin andF. B. Pickering,ibid.in p. 1.
S. F. Medina andP. Fabregue,J. Mater. Sci. 26 (1991) 5427.
A. Faessell,Rev. Metall., Cah. Inf. Tech.,4 (1976) 875.
B. Migaud, in “Hot working and forming processes” (The Metals Society, London, 1980) p. 67.
J. Coupry,Rev. Alum. 5 (1978) 259.
K. Narita,Trans. ISIJ 15 (1975) 145.
P. Charlier, in “Les aciers à dispersoïdes appliqués à la mécanique” (CETIM, Senlis, 1986) p. 21.
R. Kaspar, A. Streibelberger andO. Paweleski, in Proceedings of the International Conference on Thermomechanical Processing of Microalloyed Austenite, Pittsburg, August 1981, edited by A. J. De Ardo, G. A. Ratz and P. J. Wray, (The Metallurgical Society of AIME, Pennsylvania, 1982) p. 555.
N. Petch,J. Iron Steel Inst.,174 (1953) 25.
T. Gladman,Ironmaking Steelmaking 16 (1989) 4.
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Medina, S.F., Mancilla, J.E. & Hernandez, C.A. Influence of vanadium on the static recrystallization of austenite in microalloyed steels. J Mater Sci 28, 5317–5324 (1993). https://doi.org/10.1007/BF00570083
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DOI: https://doi.org/10.1007/BF00570083