Developing methods of controlling the structure and properties of cold-rolled steel to increase usable output and stabilize mechanical characteristics |
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| Authors: | I G Rodionova N G Shaposhnikov T M Efimova D A Burko N V Skomorokhova N I Éndel’ G A Men’shikova S D Zinchenko A B Shagalov |
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| Affiliation: | (1) I. P. Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet), Russia;(2) Severstal’ Metallurgical Combine, Russia |
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| Abstract: | Recommendations have been developed on optimizing hot rolling in the finishing train of a 2000 mill and subsequent coiling
of the rolled product. The goal was to improve the stampability characteristics of steel 08Yu. Specific recommendations were
also made on the optimum annealing and temper-rolling regimes to improve the mechanical characteristics of steel 08Yu. The
results of studies show that the structure and properties of the cold-rolled product are significantly affected by the conditions
of precipitation of different particles of nonmetallic inclusions. It is shown that it would be expedient to analyze the thermodynamics
and kinetics of these processes and study the morphology of the particles and the state of the solid solution. Recommendations
on chemical composition and process parameters that were developed on the basis of the results of such analysis are now making
it possible to consistently obtain steel 08Yu with high properties.
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Translated from Metallurg, No. 2, pp. 51–59, February, 2007. |
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