Conclusions
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1.
Increasing the concentration of manganese to 1.0% in steel 10KhSND increases the ultimate strength without changing the yield point.
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2.
An increase in the ultimate strength and the yield point while maintaining the same levels of ductility can be achieved by adding 0.03–0.07% Ti to steel 10KhSND. In order to increase the strength of steel 10KhSND in the hot-rolled condition, we recommend the addition of Ti in amounts close to the maximum allowable according to State Standard 19282-73 (0.03%).
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3.
The increased strength of steel 10KhSND containing increased amounts of Ti of 0.025–0.030% occurs as a result of decreased grain boundary elongation and a decreased tendency toward grain growth.
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Literature cited
L. V. Popova, and V. N. Zikeev, "The properties of a low-pearlitic steel containing manganese," Metalloved. Term. Obrab. Met., No. 11, 8–11 (1974).
Additional information
I. P. Bardin Scientific-Research Institute of Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 52–55, June, 1989.
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Nasibov, A.G., Popova, L.V. & Gulei, G.G. Increasing the strength of hot-rolled steel 10KhSND. Met Sci Heat Treat 31, 460–463 (1989). https://doi.org/10.1007/BF00801556
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DOI: https://doi.org/10.1007/BF00801556