Conclusions
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1.
The carbon content affects softening during subsequent heating of cold-worked steels. With increasing carbon concentrations the hardening effect is retained after heating to higher temperatures.
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2.
During subsequent annealing, cold-worked steels retain the hardening effect up to ∼ 10% deformation, which is due to polygonization and formation of a cellular structure.
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3.
Softening of cold-worked steels depends on the original structure of the pearlite. Steels with globular cementite are less susceptible to softening in comparison with steels containing lamellar cementite.
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Literature cited
P. Funke et al., "Relationship between hot rolling conditions and recrystallization processes in coldworked rod steel," Chern. Met. No. 18, 3 (1972).
S. S. Gorelik, Recrystallization of Metals and Alloys [in Russian], Metallurgiya, Moscow (1967).
Additional information
Donets Scientific-Research Institute of Ferrous Metallurgy. Donets Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 21–22, April, 1979.
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Pil'guk, V.E., Podgaiskii, M.S., Ikonnikov, V.I. et al. Effect of the original structure on softening of cold-worked steel during heating. Met Sci Heat Treat 21, 268–270 (1979). https://doi.org/10.1007/BF00775105
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DOI: https://doi.org/10.1007/BF00775105